Attachment 2 - 653-CSI-105 Resource Documents 230428.pdf
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- Solicitation number
- 36C26024R0016
About this file
This document is a set of construction drawings and related documents for a project to demolish and replace an MRI system at the VA Roseburg Medical Center in Roseburg, OR. The drawings and resource documents provide detailed specifications and requirements for the new MRI system installation, including equipment layout, structural, mechanical, electrical, and site readiness details. A mandatory pre-installation manual is referenced that contains additional critical information. The customer is responsible for preparing the site to meet all specified requirements prior to equipment delivery and installation. This project is the subject of a federal solicitation, Solicitation Number 36C26024R0016, for contractors to bid on the demolition and replacement work. The solicitation provides additional details on the project scope, site visit requirements, and vendor registration/processing information.
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23 MARCH 2023
DEMO AND
REPLACE MRI
PROJECT #: 653-CSI-105
VA ROSEBURG MEDICAL CENTER –
ROSEBURG, OR
RESOURCE
DOCUMENTS
100% SUBMITTAL
CONSTRUCTION DOCUMENTS
01 - C1 - Cover Sheet 02 - C2 - Disclaimer - Site Readiness 03 - A1 - General Notes 04 - A2 - Equipment Layout 05 - A3 - Section Views 06 - A4 - Acoustic - Proximity Limits 07 - A5 - RF shielding 08 - A6 - Equipment Details (1) 09 - A7 - Equipment Details (2) 10 - A8 - Delivery 11 - S1 - Structural Notes 12 - S2 - Structural Layout 13 - S3 - Structural Details 14 - M1 - Mechanical Layout 15 - M2 - HVAC-Venting
Roseburg, OR
Brandon Collins
SIGNA VOYAGER AIR EDITION
TNC
GE Healthcare
GE does not take responsibility for any damages resulting from changes on drawings made by others. Errors may occur by not referring to the complete set of final issue drawing. GE cannot accept responsibility for any damage due to the partial use of GE final issue drawings, however caused. All dimensions are in millimeters unless otherwise specified. Do not scale from printed pdf files. GE accepts no responsibility or liability for defective work due to scaling from these drawings. /25MRI-M248295-FIN-01-A.DWG
972-746-7022
Brandon.collins@med.ge.com
IM 5680008-1EN
USA
1/4"=1'-0"
2009861584.1
02/MAR/2023
Roseburg VA Medical Center
A mandatory component of this drawing set is the GE Healthcare Pre Installation manual. Failure to reference the Pre Installation manual will result in incomplete documentation required for site design and preparation.
Pre Installation documents for GE Healthcare products can be accessed on the web at: www.gehealthcare.com/siteplanning -
Drawn by Verified by PIM Manual
SheetFormat
Concession
Scale DateFile Name
RevS.O. (GON)
A3
REV DATE MODIFICATIONS
A 02/MAR/2023 Final (DC-376360)
FINAL STUDY
16 - M3 - Chilled Water 17 - M4 - Cryogenics (1) 18 - M5 - Cryogenics (2) 19 - E1 - Electrical Notes 20 - E2 - Electrical Layout 21 - E3 - Electrical Elevations 22 - E4 - Electrical Details (1) 23 - E5 - Electrical Details (2) 24 - E6 - Power Requirements 25 - E7 - Interconnections
· A mandatory component of this drawing set is the GE Healthcare Pre-installation manual. Failure to reference the Pre-installation manual will result in incomplete documentation required for site design and preparation.
· The items on the GE Healthcare Site Readiness Checklist DOC1809666 are REQUIRED to facilitate equipment delivery to the site. Equipment will not be delivered if these requirements are not satisfied.
CUSTOMER SITE READINESS REQUIREMENTS
REQUIRED MANUALS FOR SYSTEM PRE-INSTALLATION
Description Document Number*
Product specific Pre-installation Manual Refer to cover page Magnet Room Venting 5850263
RF Shielded Room Pre-installtion Requirements for MR systems 5850260 IEC Electromagnetic Compatibility 5850261
Acoustic Room Details 5850262 Magnet Venting Conformance Assessment Form 2705036 *documents can be accessed in multiple languages at https://customer-doc.cloud.gehealthcare.com/#/cdp/dashboard
· Any deviation from these drawings must be communicated in writing to and reviewed by your local GE Healthcare installation project manager prior to making changes.
· Make arrangements for any rigging, special handling, or facility modifications that must be made to deliver the equipment to the installation site. If desired, your local GE Healthcare installation project manager can supply a reference list of rigging contractors.
· New construction requires the following;
1. Secure area for equipment,
2. Power for drills and other test equipment,
3. Restrooms.
· Provide for refuse removal and disposal (e.g. crates, cartons, packing)
· It is required to minimize vibrations within the scan room. It is the customer's responsibility to contract a vibration consultant/engineer to implement site design modifications to meet the GE vibration specification. Refer to the system Pre-installation manual for vibration specifications.
DISCLAIMER
GENERAL SPECIFICATIONS
· GE is not responsible for the installation of developers and associated equipment, lighting, cassette trays and protective screens or derivatives not mentioned in the order.
· The final study contains recommendations for the location of GE equipment and associated devices, electrical wiring and room arrangements. When preparing the study, every effort has been made to consider every aspect of the actual equipment expected to be installed.
· The layout of the equipment offered by GE, the dimensions given for the premises, the details provided for the pre-installation work and electrical power supply are given according to the information noted during on-site study and the wishes expressed by the customer.
· The room dimensions used to create the equipment layout may originate from a previous layout and may not be accurate as they may not have been verified on site. GE cannot take any responsibility for errors due to lack of information.
· Dimensions apply to finished surfaces of the room.
· Actual configuration may differ from options presented in some typical views or tables.
· If this set of final drawings has been approved by the customer, any subsequent modification of the site must be subject to further investigation by GE about the feasibility of installing the equipment. Any reservations must be noted.
· The equipment layout indicates the placement and interconnection of the indicated equipment components.
There may be local requirements that could impact the placement of these components. It remains the customer's responsibility to ensure that the site and final equipment placement complies with all applicable local requirements.
· All work required to install GE equipment must be carried out in compliance with the building regulations and the safety standards of legal force in the country concerned.
· These drawings are not to be used for actual construction purposes. The company cannot take responsibility for any damage resulting therefrom.
CUSTOMER RESPONSIBILITIES
· It is the responsibility of the customer to prepare the site in accordance with the specifications stated in the final study. A detailed site readiness checklist is provided by GE. It is the responsibility of the customer to ensure all requirements are fulfilled and that the site conforms to all specifications defined in the checklist and final study. The GE Project Manager of Installation (PMI) will work in cooperation with the customer to follow up and ensure that actions in the checklist are complete, and if necessary, will aid in the rescheduling of the delivery and installation date.
· Prior to installation, a structural engineer of record must ensure that the floor and ceiling is designed in such a way that the loads of the installed system can be securely borne and transferred. The layout of additional structural elements, dimensioning and the selection of appropriate installation methods are the sole responsibility of the structural engineer. Execution of load bearing structures supporting equipment on the ceiling, floor or walls are the customer's responsibility.
THE UNDERSIGNED, HEREBY CERTIFIES THAT I HAVE READ AND APPROVED THE PLANS IN THIS DOCUMENT.
DATE NAME SIGNATURE
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center C2 - Disclaimer - Site Readiness 02-
MAGNETIC INTERFERENCE SPECIFICATIONS
TYPCIAL MOVING MAGNETIC MASS DISTANCE RADIALLY DISTANCE AXIALLY
Carts, Gurneys 100-400 lbs [45-182 kg] 3 Gauss line 3 Gauss line
Forklifts, small elevator, cars, minivans vans, pickup trucks, ambulances (objects greater than 400 lbs [182 kg]) 15.5 FT 4.72 M 21.0 FT 6.4 M
Buses and trucks (dump, tractor trailer, utility, fire trucks) 18.1 FT 5.52 M 24.5 FT 7.47 M
· The customer must establish protocols to prevent persons with cardiac pacemakers, neurostimulators, and biostimulation devices from entering magnetic fields of greater than 5 gauss (exclusion zone).
· Main power transformers must remain outside the 3 gauss field. EMI < 40mG RMS AC at the magnet location.
EMI <9.39mG DC.
· Potential exists under fault conditions that the 5 gauss line may expand radially to 11.48 ft. [3.5 m] and axially to 14.76 ft. [4.5 m] for 1 second or less. It should be noted that normal rampdowns or magnet rundown unit initiated quenches will not cause the magnetic field to expand.
· It is recommended every site consider the event of a quench and plan accordingly (such as placing 5 gauss warning signs at expanded locations).
· The ferrous metal objects listed below must not move into or inside of the moving metal sensitivity line during scans.
Please refer to pre-installation checklist in pre-installation manual listed on the cover sheet for items critical to image quality.
1. The layout should be arranged so that the 5g line is contained to the magnet room. If not possible, a barrier is recommended to prevent entry to the 5g field area.
2. The spaces around, above, and below the magnet must be reviewed for effects of the 5g, 3g, 1g, and .5g fields.
Refer to the proximity limit chart in the MR pre-installation manual referenced on the cover sheet.
3. For moving metal, the restriction lines typically extend outside of the MR space. Please confirm there are no moving metal concerns within these areas.
4. For vibration, analysis to be completed as required per pre-installation manual.
5. For EMI, review the site for the location of the main electrical feeders, AC devices, or distribution systems. An
EMI study is recommended if large AC systems are nearby.
6. Details of the floor below the magnet must be reviewed. The structural engineer must verify that the quantity of steel in the volume 10ft [3.1m] x 10ft [3.1m] x 13in [.3m] deep (below the magnet) does not exceed the allowable steel content as given in the MR pre-installation manual referenced on the cover sheet.
7. Remove, cover, or fill-in abandoned ducts or troughs from the Equipment and Magnet rooms. Access/computer room flooring in the Equipment room can either be removed or assessed and reinforced to support heavier cabinets.
Responsibility for the coordination, design, engineering, and site preparation resides with the customer and their project architects and contractors. GE does not, by providing reviews and furnishing comments and assistance, accept any responsibility beyond its obligations as defined in the MR system, sale/purchase agreement.
MRI SITE PLANNING REMINDERS
Broadband RF noise is a single transient or continuous series of transient disturbances caused by an electrical discharge. Low humidity environmental conditions will have higher probability of electrical discharge. The electrical discharge can occur due to electrical arcing (micro arcing) or merely static discharge. Some potential sources capable of producing electrical discharge include:
· Loose hardware/fasteners vibration or movement (electrical contunuity must always be maintained)
· Flooring material including raised access flooring (panels & support hardware) and carpeting
· Electrical fixtures (i.e. Lighting fixtures, track lighting, emergency lighting, battery chargers, outlets)
· Ducting for HVAC and cable routing
· RF shield seals (walls, doors, windows etc.)
For additional information regarding image quality, refer to the pre-installation manual listed on the cover sheet.
IMAGE QUALITY CONSIDERATIONS
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center A1 - General Notes 03
200 G 1 G
10 G5 G
0.5 G
3 G
30 G 50 G 100 G
200 Gauss 5 Gauss 100, 50, 30, 10 Gauss 3, 1, 0.5 Gauss
LEGEND
A GE Supplied D Available from GE B GE Supplied/contractor installed E Equipment existing in room
C Customer/contractor supplied and installed * Item to be reinstalled from another site
For Accessory Sales: (866) 281-7545 Options 1, 2, 1, 2 or mail to: gehcaccessorysales@ge.com
BY ITEM DESCRIPTION
MAX HEAT
OUTPUT
(btu)
WEIGHT
(lbs)
MAX
HEAT
OUTPUT
(W)
WEIGHT
(kg)
A 1 1.5T Magnet (IPM) 8189 11000 2400 4990
A 2 Patient table - fixed - 572 - 259.5
A 3 Magnet rundown unit - 7 - 3.2
A 4 Integrated Cooling Cabinet 3412 1100 1000 474
A 5 Integrated System Cabinet 24232 2557 7100 1160
A 6 Magnet monitor 205 10 60 4.5
A 7 Operator console computer 4947 122.8 1450 55.7
A 8 Operator workspace - 20 - 9
A 9 Pneumatic patient alert - 0.5 - 0.2
A 10 CCTV Monitor - 7.7 - 3.50
A 11 CCTV Camera - 0.3 - 0.14
A 12 Music system - - - -
A 13 Injector on pedestal - 94 - 43
A 14 Injector control 675 17 198 8
A 15 Injector power supply 660 6 193 3
B 16 Main Disconnect Panel 901 96 264 43.5
B 17 Seismic Dimplex Chiller 168000 4300 49236 1950
B 18 Remote graphic display - - - -
B 19 Water filter - - - -
D 20 Metal Detector (hand held) - - - -
B 21 Full UPS 150 kW 23544 1206 6900 547
B 22 Full UPS Battery cabinet - 3500 - 1588
B 23 Maintenance Bypass Panel (MBP) - 125 - 57
A 24 Penetration Panel - - - -
C 25 Minimum opening for equipment delivery is 40 in. w x 82 in. h, contingent on a 72 in.
corridor width
C 26 Minimum opening for equipment delivery is 43 in. w x 82 in. h, contingent on a 96 in.
corridor width
C 27 Counter top for equipment- provide grommeted openings as required to route cables
C 28 Base cabinet for storage of: surface coils, patient positioning pads, phantoms, etc.
C 29 Louvered mobile doors - refer to preinstall for requirements
C 30 Magnet access 9'-0"x 9'-0"
C 31 Warning! 5 Gauss line outside the Magnet room limits
C 32 Define RF shield's inset according to provisions made by the RF Shield vendor
Exam room height
Finished floor to slab height
Finished ceiling height
TBD
8'-3"
RF SHIELD - 100 dB ATTENUATION
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center A2 - Equipment Layout 041/4"=1'-0"
Moving metal sensitivity line for CARS, MINIVANS, PICKUP
TRUCKS, AND AMBULANCES.
NOTE: Ferrous objects must not move into or inside of the moving metal sensitivity line during scans.
Moving metal sensitivity line for BUSES AND TRUCKS (DUMP, TRACTOR TRAILER, UTILITY, FIRE TRUCKS)
LOCATED ELSEWHERE
9'-1"
7' -4
'-8
2' -2
"4'-1"
26'-2"
14'-0"
'-1
0"
1' -1
0"
2'-1"
4'-1"
4 5
1' -8
MAGNET ROOM
(considering RF shield walls)
EQUIPMENT
ROOM
CONTROL ROOM
LOCATED ELSEWHERE
2' -9
6'-2"
'-1
0"
BlueA Cloud+
BlueA Cloud+
UPDATED ON ARCH FLOOR PLAN - DOOR SHIFTED WEST.
BlueA Cloud+
BlueA Cloud+
SHIFTED SLIGHTLY WEST
BlueA Cloud+
BlueA Cloud+
MOVED TO NORTH WALL
BlueA Cloud+
BlueA Cloud+
SHIFTED SLIGHTLY NORTH
BlueA Text Box
PLEASE COMPLY WITH ARCHITECTURAL PLANS FOR DIMENSIONS AND LOCATIONS, UNO.
BRING ANY DISCREPENCIES IMMEDIATELY TO THE ATTENTION OF THE COR.
200 G
10 G
5 G 3 G
30 G 50 G
100 G
3 G
200 G
5 G
10 G30 G 50 G
100 G
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center A3 - Section Views 051/4"=1'-0"
SIDE VIEW WITH MAGNETIC FIELD
MAGNET ROOM CONTROL ROOM
± 0'-0"
FRONT VIEW WITH MAGNETIC FIELD
MAGNET ROOM
+ 8'-3"
+ TBD
+ TBD
± 0'-0"
+ TBD
+ TBD
3' -6
3' -6
Cable tray Unistrut
+ 9'-10"
+ 8'-3"
+ 9'-10"
7'-4"
2'-10" 3'-6"
9'-1"
MAGNETIC PROXIMITY LIMITS
STEEL MASS LIMITS TO MAGNET ISOCENTER (3x3 m [10x10 ft] AREA UNDER MAGNET) Limits Of Steel Mass Distance Below Top Surface Of Floor kg/m² lbs/ft² mm in 0 0 0 - 76 0-3
9.8 2 76 - 127 3-5
14.7 3 127 - 254 5-10
39.2 8 254 - 330 10-13
98.0 20 330+ 13+
The actual field strength can be affected by Magnetic shielding, Earth's magnetic field, other magnetic fields and stationary or moving metal. This information must be used to evaluate potential site interaction of GE Healthcare equipment with other non-GE Healthcare equipment. Magnetic shielding can be installed to prevent interaction between the magnet and nearby sensitive devices. The GE Healthcare Project Manager of Installation (PMI) can work with the customer to coordinate the magnetic shielding site evaluation. The customer is responsible for installation of all magnetic shielding.
The customer must provide detail defining ferrous material below the magnet to the Project Manager so the GE Healthcare MR Siting and Shielding team can review for compliance.
Gauss (mT) Limit Equipment
0.5 gauss (0.05mT) Nuclear camera
1 gauss (0.1mT) Positron Emission Tomography scanner, Linear Accelerator, Cyclotrons, Accurate measuring scale, Image intensifiers, Bone Densitometers, Video display (tube), CT scanner, Ultrasound, Lithotriptor, Electron microscope, Digital X-Ray
3 gauss (0.3mT) Power transformers, Main electrical distribution transformers 5 gauss (0.5mT) Cardiac pacemakers, Neurostimulators, Biostimulation devices
10 gauss (1mT) Magnetic computer media, Line printers, Film processor, X-ray tubes, Emergency generators, Commercial laundry equipment, Food preparation area, Water cooling equipment, HVAC equipment, Major mechanical equipment room, Credit cards, watches, and clocks, Air conditioning equipment, Fuel storage tanks, Motors greater than 5 horsepower
50 gauss (5mT) Metal detector for screening, LCD panels, Telephones
No Limit Digital Detectors
ISOGAUSS PLOTS
* The isogauss contour plots depicted on this drawing represent magnetic fringe fields resulting from the normal operation of the magnet provided with the MR system. The actual magnetic field intensity at any point in the vicinity of the magnet when installed may vary from the contour plots due to factors such as the concentrating effects of nearby ferrous objects ambient magnetic fields, including the earth's magnetic field. Therefore, the contours shown are only approximations of actual field intensities found at a corresponding distance from the magnet's isocenter.
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center A4 - Acoustic - Proximity Limits 06
SOUND PRESSURE SPECTRAL DISTRIBUTION
20 25
.5 40 50 63 80 10
20SP
L
(d
BA
n or m al ize d
Frequency (1/3 Octave)
1/3 Band Relative SPL
Acoustic and vibroacoustic information is provided for site planning and architectural design activities. It is the customer's responsibility to hire a qualified acoustic engineer for solutions to further attenuate this transmitted noise and vibration, if required. The actual room noise level may vary based on room design, optional equipment, and usage:
ACOUSTICS SPECIFICATIONS
Average sound pressure level Frequency
Control room ≤62dBA 20 Hz to 20kHz Equipment room ≤80dBA 20 Hz to 20kHz Magnet room 122dBA (max) 20 Hz to 20kHz
PENETRATION PANEL CLOSET
An enclosure (i.e. closet) must be provided to restrict access to the PEN panels and for storage of excess interconnections.
· The PEN closet must have a mechanical locking mechanism to restrict access to the PEN panels
· The PEN closet must maintain the minimum service area outside the 200 Gauss in the magnet room.
· PEN closet must allow free air exchange of 400CFM (680 m³/hour) between the Magnet room and PEN closet for MR system blowers. Airflow may be achieved through door louvers or other openings in the PEN closet that meet all other PEN closet requirements
MAGNET
GEOMETRIC
ISOCENTER
FRONT OF MAGNET
Shaded area within dashed lines indicates floor to ceiling minimum height of 2500 mm [98.5 in].
If suspended ceiling is between 2500 mm [98.5 in] and 2667 mm [105 in], 2.5M Low Ceiling Kit-Passive is required.
Contact the PMI for preparation.
[5 7.
in
[51 in]
[7 in
SCALE 1:50
[51 in]
MINIMUM MAGNET CEILING HEIGHT (TOP VIEW)
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center RF shielding 071:10
PENETRATION PANEL WALL OPENING
Equipment room
Magnet room
AA
[19.6 in]
[6 1.
in
±0 in
470±.2
[18.5 in±0 in]
SECTION A-A
RF shielded wall (magnet room side)
GE-supplied mounting block
Penetration panel
WALL OPENING
(EQUIPMENT ROOM SIDE)
82.6mm [3.25 in] Clearance required around opening for mounting penetration panel
PENETRATION PANEL MOUNTED
M
IN
. 1
[4 in
EQUIPMENT ROOM FLOOR
[6 2.
in
[6 in
[6 in
[22 in]
[25 in]
[.7 in
[1 .2 in
[0
.0 in
[43.3 in]
[2 5.
in
If the closet depth is less than 1000mm [39.4 in], the closet must have door(s) configured to clear the service area for the Penetration Panel.
[39.4 in]
Penetration Panel service clearance area
Finished wall
RF Shield must wrap around all edges of the penetration wall opening.
Minimum closet height:
1900mm [74.8 in]
PENETRATION PANEL PLAN VIEW
Qty. 36 M6 fasteners supplied by customer
The minimum RF shield overlay in the Equipment Room is 70 mm [2.4 in].
[11.9 in]
[11.9 in]
Center of gravity
MAGNET ENCLOSURE
Note:
Center of gravity is approximate and includes the GE Healthcare supplied VibroAcoustic Dampening Kit, but does not include cryogens, gradient assembly, side mounted electronics, or enclosures.
Enclosure dimensions are for reference only, NOT FOR SITE PLANNING USE.
FRONT VIEW SIDE VIEW
[37.8 in]
[82 in]
[15.6 in]
[3 6.
in
[9 4.
in
[4 2.
in
[44.5 in]
[54.7 in]
INTEGRATED SYSTEM CABINET
EQUIPMENT ROOM
SECTION VIEW PLAN VIEW
FRONT VIEW
Air flow Center of gravity
Service clearance
Service clearance
[6 in]
[6 in]
[3 in
[62 in]
[2 in
[27 in]
[50 in]
[2 in
[7 in
[7 in
M
IN
. 4
[1 in
M
IN
. 3
[1 in
[31 in]
SIDE VIEW
Cable Tray
[38 in]
[18 in]
50G Limit
[34 in]
Any obstacles including cable tray and ceiling must be in or above this area.
[24 in]
[4 in]
INTEGRATED COOLING CABINET
EQUIPMENT ROOM
Center of gravity
TOP VIEW
FRONT VIEW
SIDE VIEW
[13 in] 825
[32 in]
[4 in
[7 in
Service clearance
[7 in
M
IN
. 4
[1 in
M
IN
. 3
[1 in
[4 in
[15 in] 800
[31 in]
Any obstacles including cable tray and ceiling must be in or above this area.
Cable Tray
[24 in]
[4 in]
[3 in
[44 in]
[6 in]
[6 in]
[2 in
Service Clearance
Service Clearance
PATIENT TABLE (PT)
Scale 1:25
[4 2.
in
[2
9.
in
[93.2 in]
[21.6 in]
[54.4 in]
Side ViewFront View
[18.9 in]
[2 8.
in
]10
[3 9.
in
[24.9 in]
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center A6 - Equipment Details (1) 081/4"=1'-0"
SCALE 1:20
MAGNET MONITOR AND MAGNET RUNDOWN UNIT (MRU)
[5.6 in]
[1.2 in]
[7 .7 in
[11.3 in]
[8.3 in]
[2
.1 in
]105 [4.1 in]
[3 in]
[15 in]
[1 0.
in
[1 1.
in
[.5 in
[.5 in
[11 in]
[.9 in]
[.9 in]
[6 in]
[6 in]
MAGNET MONITOR
MAGNET RUNDOWN UNIT (MRU)
[5 in]
Ø 26 mm [1 in] cable access
Mounting:
Ø7[Ø.3 in]
Ø5[Ø.2 in]
Ø10
[Ø .4 in
Mounting:
Front view: Side view:
Front view: Side view:
The bottom edge of the MRU must be mounted 1524 ±25 mm [60 ± 1 in] above the magnet room floor.
[4 .7 in
MAIN DISCONNECT PANEL
TOP VIEWFRONT VIEWSIDE VIEW
NOT TO SCALE
Center of gravity
FINISHED FLOOR
4x Ø11.2mm [0.44 in] mounting holes
[3 in]
[1 in
[8 in]
[10 in]
[18 in]
[3 in
[20 in]
19 [1 in
[1 in]
[3 in
[20 in]
[8 in
Service clearance
[20 in]
GLOBAL OPERATOR CABINET (GOC)
Center of Gravity
SCALE 1:10
TOP VIEW
FRONT VIEWSIDE VIEW
[7.64 in]
[2 3.
in
[15.79 in]755
[29.71 in]
[1 0.
in
[12.13 in]
[27.56 in]
[1
.2 in
[3
.1 in
[4 .1 in
[1
.8 in
335.5 [13.21 in]
.5
[2 in
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center A7 - Equipment Details (2) 091/4"=1'-0"
DELIVERY
STORAGE CONDITIONS
· System components except the magnet should be stored in a cleaned room.
· Temperature = -30 to 60°C [-22 to 140°F], relative humidity < 90% non condensing.
· Material should not be stored for more than 90 days.
· The magnet will be delivered after GE validation of the site.
INSTALLATION AND DELIVERY ACCEPTANCE
· A survey of the site established by the customer and GE will make the decision for the delivery time.
· This survey of the site (a form is made available by GE) is only to check if the apparent conditions of the site allow the equipment to be delivered.
· If the site is not ready, GE can delay the delivery time.
FRONT VIEW OF MAGNET
[45.6 in]
SIDE VIEW OF MAGNET
[8 7.
in
[94 in]
ROUTING
· The customer is solely liable for routing of components from dock to final site.
· GE must be able to move system components in or out with no need to uncrate or disassemble any of the components. The entire passageway must be cleared, adequately lighted and free from dust.
· The floor and it surfacing must be able to withstand the live load of components and handling equipment.
· Floor surfacing must be continuous.
· The customer must protect any fragile flooring surfaces.
SPECIFICATIONS FOR MAGNET ROUTING
· Floor must be able to withstand a moving load of 4990kg [11,000 lb]
· Recommended opening height: 2.5m [98.5in], width: 2.5m [98.5in]. If recommended dimensions cannot be met refer to pre-installation manual for detailed specifications.
· Maximum slope: 30°
[90 in]
[85 in]
STRAIGHT PATH PATH WITH 90 DEGREE TURN
[98.4 in]
[98.4 in]
GRADIENT COIL REPLACEMENT
The weight bearing structure of the site should support any additional weight of the main replacement parts occurring during maintenance of the magnet, throughout the whole lifecycle of the MR.
EQUIPMENT
DIMENSIONS LxWxH WEIGHT
NOTE
mm in kg lbs
Replacement VRMw gradient coil assembly on a shipping cradle/cart 910x2444x1499 35.8x96.2x59 1449 3194
Initial gradient coil assembly is shipped installed in the magnet. Shipping/installation cart is used to install replacement coil assembly only.
[35.8 in]
[96.2 in]
[5 in
This is only a partial list of items required for delivery of the magnet. For a complete checklist refer to the pre-installation manual referenced on cover sheet.
· 24/7 chilled water and 480v power for shield/cryo cooler
· 24/7 120v power for the magnet monitor
· Phone lines for magnet monitoring and emergency use
· Operational magnet room exhaust fan
· Cryogen venting (if roof hatch, completed within 24 hrs)
CRITICAL ITEMS FOR MAGNET DELIVERY
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center A8 - Delivery 101/4"=1'-0"
VIBRATION TRANSMITTED THROUGH VIBROACOUSTIC MAT
0.
0.02
Ac ce la ra tio n
[m /s
²]
1/3 Octave Band (Hz)
0.04
0.06
0.08
0.1
0.12
0.14
0.16
0.18
0.2
1.
25 1.
6 2
2.
3.
15 4 5
6.
3 8 10
.5 16 20 25
.5 40 50 63 80 10
EXCITATION FREQUENCY [Hz]
AC
CE
LE
RA
TI
O
N g
's (1
0¯ ⁶)
Ab ov e am bi en t b as el in e
MAGNET STEADY-STATE VIBRATION SPECIFICATIONS
VIBRATION SPECIFICATIONS
Excessive vibration can affect MR image quality. Vibration testing must be performed early in the site planning process to ensure vibration is minimized. Both steady state vibration (exhaust fans, air conditioners, pumps, etc.)
and transient vibrations (traffic, pedestrians, door slamming, etc.) must be assessed. The Magnet cannot be directly isolated from vibration. Any vibration issue must be resolved at the source.
Transient vibration levels above the specified limits in the MR Site Vibration Test Guidelines must be analyzed. Any transient vibration that causes vibration to exceed the steady-state level must be mitigated.
NOTE:
The customer may have to hire a vibration consultant based on the results of the analysis.
10 20 30 40 50
5 15 25 35 45
· All units that are wall mounted or wall supported are to be provided with supports where necessary. Wall supports are to be supplied and installed by the customer or his contractors.
· Dimensions are to finished surfaces of room.
· Certain MR procedures require an extremely stable environment to achieve high resolution image quality.
Vibration is known to introduce field instabilities into the imaging system. The vibration effects on image quality can be minimized during the initial site planning of the mr suite by minimizing the vibration environment. See PROXIMITY LIMITS, PATIENT TABLE DOCK ANCHOR MOUNTING REQUIREMENTS AND VIBROACOUSTIC DAMPENING KIT details for additional information.
· Standard steel studs, nails, screws, conduit, piping, drains and other hardware are acceptable if properly secured. Any loose steel objects can be violently accelerated into the bore of the magnet. Careful thought should be given to the selection of light fixtures, cabinets, wall decorations, etc. To minimize this potential hazard. For safety, all removable items within the magnet room such as faucet handles, drain covers, switch box cover plates, light fixture components, mounting screws, etc. must be non-magnetic. If you have a specific question about material, bring it to the attention of your GE project manager of installations.
· Floor levelness refer to MAGNET ROOM FLOOR SPECIFICATIONS DETAIL, this floor levelness requirement is important for accurate patient table docking.
· Non-movable steel such as wall studs or hvac components will produce negligible effect on the active shield magnet.
· Customer's contractor must provide all penetrations in post tension floors.
· Customer's contractor must provide and install any non-standard anchoring. Documents for standard anchoring methods are included with GE equipment drawings for geographic areas that require such documentation.
· Customer's contractor must provide and install hardware for "through the floor" anchoring and/or any bracing under access floors. This contractor must also provide floor drilling that cannot be completed because of an obstruction encountered while drilling by the GE installer such as rebar etc.
· Customer's contractor to provide and install appropriate supports for the storage of excess cables.
· It is the customer's responsibility to perform any floor or wall penetrations that may be required. The customer is also responsible for ensuring that no subsurface utilities (e.g., electrical or any other form of wiring, conduits, piping, duct work or structural supports (i.e. post tension cables or rebar)) will interfere or come in contact with subsurface penetration operations (e.g. drilling and installation of anchors/screws) performed during the installation process. To ensure worker safety, GE installers will perform surface penetration operations only after the customer's validation and completion of the "GE surface penetration permit"
STRUCTURAL NOTES
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center S1 - Structural Notes 11
ITEM DESCRIPTION
(GE SUPPLIED / CONTRACTOR INSTALLED)
1 Vibroacoustic dampening kit (see floor structural detail)
2 Magnet curtain kit
(CONTRACTOR SUPPLIED & INSTALLED)
3 Patient table dock rebar free area 4 Structural wall backing for Main Disconnect Panel
5 Structural wall backing for Magnet Rundown Unit
6 Two I-beam runners are to support chiller feet at both ends. Refer to Dimplex manual.
7 Structural wall backing for Main Bypass Panel
8 Structural floor support for UPS Battery Cabinet
9 Structural wall backing for Magnet Monitor
10 Floor mounting point for Full UPS
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center S2 - Structural Layout 121/4"=1'-0"
LOCATED ELSEWHERE
9'-1"
7' -4
MAGNET ROOM
EQUIPMENT
ROOM
CONTROL ROOM
LOCATED ELSEWHERE
9'-10"
5'-4"
1 1
1 1
9' -2
SCALE 1:25
FLOOR MOUNTING
Center of Gravity
NOTE: Table anchor holes cannot be pre-drilled before table installation
MAGNET ISO
CENTER
Patient table dock anchor area (rebar-free)
[37.8 in]
[26.5 in]
[26.5 in]
[51.6 in]
51 [2 in
[53 in]
[4 .9 in
[3 in]
[2 6.
in
[2
6.
in
[5 in
[5 .2 in
[5.5 in]
[18.5 in]
[22 in]
[9 .4 in
[1 8.
in
[40.6 in]
4 x Ø13mm [0.5 in]
HILTI KB-TZ EXPANSION ANCHORS
(MINI EMBED. Hef=83mm [3.25 in]) (Only for fixed table in seismic areas)
Platform enclosure shown.
Also available with classic enclosure.
349.5±6.4
[13.76 in±.25 in]
9.
2±6 .4
[1 5.
in in
Magnet vent
CABLE CONCEALMENT
SCALE 1:25
[34.9 in]
[30.9 in]60
[2 in
[4 1.
in
FR
O
N T
O F
M
AG
N
ET
Magnet isocenter 25
[0 .9 in
Ceiling opening outline
FEMALE ANCHOR METHOD
(CUTAWAY SIDE VIEW)
Female Anchor Insert
BOLTED METHOD
(CUTAWAY SIDE VIEW)
Removable Anchor Rod
(Male insert) Dock
Clamp bracket
Finished Floor
Filler Board or Grout
RF Shield
Conductive Fibrous Washer (RF seal)
Concrete
TABLE FRAME ANCHOR MOUNTING REQUIREMENTS
NOT TO SCALE
1. The RF Shield vendor must design and install the table frame anchor bolt
2. The table frame anchor hole must be drilled after the Magnet is delivered
3. The table frame anchor must not contact floor rebar or other structural steel
4. The table frame anchor must electrically contact the RF shield at point of entry
5. The table frame anchors must have the following properties:
a. Anchors must be two-part assembly (male/female)
b. Female side must be expansion- or epoxy-type
c. Male side must be a bolt or threaded rod with appropriate-sized nut (bolt or rod must be removable - not epoxied or cemented in place)
d. Anchors must be electrically conductive
e. Anchors must be non-magnetic
f. Anchors must not induce galvanic corrosion with the RF shield
g. Anchors must be commercially procured
h. The anchor rod hole clearance in the table anchor base is 11 mm (0.43 in). The anchor rod diameter must be sized appropriately
i. Anchors must meet the following clamping force: 2669 N (600 lbs)
j. The anchor rod must extend 40 mm ± 13 mm (1.57 in ±0.5 in) above the finished floor
k. The anchor rod must be less than 152 mm (6 in) in total length (length above the floor plus embedded length)
6. The RF shield vendor must perform a pull test on the anchor (equal to the clamping force). Results must be provided to the GE Healthcare Project Manager of Installation (PMI).
MAGNET ROOM FLOOR SPECIFICATIONS
The finished floor must support the weight of all components (e.g., patient table, gradient coil replacement cart) throughout operation and service life.
Floor must be flat and level to 3 mm [0.12in] between high and low spots over the area shown.
m m
[4 9.
in
3419mm [134.61in] m m
[4 9.
in
943mm [37.13in]
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center S3 - Structural Details 131/4"=1'-0"
ITEM DESCRIPTION
1 Cryogen vent (200mm [8"] O.D.)
2 Emergency exhaust vent - refer to magnet room vent requirements (position to be defined)
3 (2) 50mm [2"] I.D. High pressure hoses and (2) 50mm [2"] to 38mm [1.5"] Reducers
4 (2) 38mm [1.5"] copper lines (insulated) and (2) shut off valves. refer to chilled water block diagram
5 Closet must allow free air exchange of 400 CFM between magnet room and closet
MECHANICAL/PLUMBING NOTES
· All piping, fittings, supports, hoses, clamps, ventlation systems, etc. are to be supplied and installed by the customer or his contractors.
· For complete design and requirements, specifications and guidelines refer to the pre-installation manual: system cooling, cryogen venting, waveguides and exhaust venting.
· An emergency water cooling back-up supply is recommended for continuous cryogen compressor operation. if using an open loop back-up design, ensure a drain is provided. please refer to the pre-install manual for optional back-up coolant supply requirements
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center M1 - Mechanical Layout 141/4"=1'-0"
13.76±.25
.7
LOCATED ELSEWHERE
9'-1"
7' -4
"MAGNET ROOM
EQUIPMENT
ROOM
CONTROL ROOM
LOCATED ELSEWHERE
TEMPERATURE AND HUMIDITY SPECIFICATIONS
IN-USE CONDITIONS
STORAGE CONDITIONS
NOTE
In case of using air conditioning systems that have a risk of water leakage it is recommended not to install it above electric equipment or to take measures to protect the equipment from dropping water.
Material should not be stored for more than 90 days.AIR RENEWAL According to local standards.
NOTE
Maximum ambient temperature is derated by 1°C [33.8°F] per 300 m [984 ft] above 2000 m [6561 ft] (not to exceed 2600 m 8530 ft]).
(1) non-condensing
(2) Actual heat output is site specific and dependent on the specific MR system configuration and customer usage of the MR system and options
Temperature -30°C to 50°C Relative humidity (1) 10% to 90%
MAGNET ROOM CONTROL ROOM EQUIPMENT ROOM
Temperature 15-21°C 15-32°C 15-32°C [3]
59-69.8°F 59-89.6°F 59-89.6°F [3]
Temperature gradient [1]
≤ 3°C/h ≤ 3°C/h ≤ 3°C/h
≤ 5°F/h ≤ 5°F/h ≤ 5°F/h Relative humidity 30% to 60% 30% to 75% 30% to 75% Humidity gradient [2] ≤ 5%/h ≤ 5%/h ≤ 5%/h
System heat dissipation (2)
Stand by Max Average Stand by Max Average Stand by Max Average
0.56kW 2.40kW 1.20kW 1.45kW 0.97kW 8.92kW 3.32kW 1915 btu 8189 btu 4095 btu 4947 btu 3316 btu 30456 btu 11337 btu
HEAT DISSIPATION DETAILS
DESCRIPTION ROOM
IDLE W AVERAGE MAX
W btu W btu W btu Magnet (MAG) and Patient Table (PT) Magnet 561 1915 1200 4095 2400 8189 Main Disconnect Panel (MDP) Equipment 132 450 132 450 264 901 Integrated System Cabinet (ISC) Equipment 280 955 2130 7270 7100 24232 Integrated Cooling Cabinet (ICC) Equipment 0 0 500 1706 1000 3412 Cryocooler Compressor (CRY) Equipment 500 1706 500 1706 500 1706 Magnet Monitor (MON) Equipment 60 205 60 205 60 205 Operator Workspace equipment (OW) Control 1450 4947 1450 4947 1450 4947
MAGNET ROOM EXHAUST FAN SCHEMATIC
Vent to outside environment
Exhaust Fan
To Facility Air Handler
AC Power (rated as required for operation of Motorized Damper and Exhaust Fan) Ground secondary of low voltage transformer to RF Room Common Ground Stud
RF Shield
Dielectric Isolator
Room ceiling Motorized Damper
Exhaust Intake Vent
MAGNET ROOM CONTROL ROOM
RF Filter
ON/OFFManual fan switches in parallel
Ductwork
Ductwork
MAGNET ROOM VENTING REQUIREMENTS
HVAC VENT REQUIREMENTS
· HVAC vendor must comply with Magnet room temperature and humidity specifications and RF shielding specifications.
· RF Shield vendor must install open pipe or honeycomb HVAC waveguides.
· All serviceable parts in the Magnet room (e.g.: diffusers) must be non-magnetic.
· Waveguides must be nonmagnetic and electrically isolated.
· Incoming air must contain at least 5% air from outside the Magnet room (inside or outside the facility) to displace residual helium.
EMERGENCY VENT REQUIREMENT
· Exhaust vent system is supplied by the customer.
· All items within the RF enclosure must be non-magnetic.
· The exhaust vent system must be tested and operational before the magnet is installed.
· The exhaust intake vent must be located near the magnet cryogenic vent at the highest point on the finished or drop ceiling.
· The Magnet room exhaust fan and exhaust intake vent must have a capacity of at least 1200 CFM (34 m³/min) with a minimum of 12 room air exchanges per hour.
· The exhaust fan must be placed above RF shielding located outside 10 gauss (1mT) and with appropriate waveguide.
· The system must have a manual exhaust fan switch near the Operator Workspace and in the Magnet room near the door (the switches must be connected in parallel).
· All system components must be accessible for customer inspection, cleaning and maintenance
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center M2 - HVAC-Venting 15
MINIMUM RECOMMENDED CHILLER CONFIGURATION
FLOW METER
VALVE
FILTER
Equipment supplied by GE
Customer/contractor supplied and installed
Filter with bypass
ICC GE componentsDEDICATED
CHILLER
Bypass Valve
Flushing valve
Flushing valve
CHILLED WATER SPECIFICATIONS
PARAMETER REQUIREMENTS
Chiller size Minimum 36kW Inlet temperature 5 to 15°C [41 to 59°F] measured at the inlet to the ICC
Hose connection to ICC (supplied by customer) 25.4mm (1 in) minimum hose inside diameter
MINIMUM FLOW
50 l/min (13.2 gpm)
MAXIMUM FLOW
80 l/min (21.1 gpm)
PRESSURE DROP
IN ICC CABINET
40% propylene glycol or ethylene glycol, 60% water 1.8 bars (26.1 psi) 3.4 bars (49.3 psi)
Availability Continuous
Antifreeze 0-40% propylene glycol
Maximum inlet pressure to ICC Maximum 5.52 bar (80 psi)
Minimum continuous heat load 7.5 kW
Condensation protection Facility plumbing to the ICC must be properly routed and insulated to prevent equipment damage or safety hazards
Water quality Refer to pre-installation manual for detailed specifications
NOTE
· The customer must balance the cost of cryogens and local controls with the cost of emergency backup facility coolant.
· For the site without insite connection, the customer must provide and install an in-line thermometer on the supply facility coolant hose. The thermometer must be capable of visually displaying thermometer covering 41 to 59°F (5 to 15°C) and configured for the properties of the cooling fluid in use.
MAGNET
ROOM
Integrated System Cabinet
(ISC)
EQUIPMENT
ROOM
* Return
Supply
Magnet
(MAG)
Gradient Coil (VRMw)
RF Shield
Integrated Cooling
Cabinet (ICC)
Patient Air Cooling
FLOWMETER * FILTER *
(100 micron)
Facility Plumbing
Unit
(FPU)
Cryocooler Compressor
(CRY)
Supply DrainOptional Backup Water*
Body Coil Air CoolingAir Filter
Air Filter
CHILLED WATER BLOCK DIAGRAM
Facility chilled water Refer to detail:
MINIMUM
RECOMMENDED
CHILLER
CONFIGURATION
* Equipment SUPPLIED by CUSTOMER
Equipment SUPPLIED by GE Air cooling SUPPLIED by GE Water cooling SUPPLIED by GE Plumbing SUPPLIED by CUSTOMER
NOTE:
Customer need to provide the following items.
• 12.5mm [0.5 in] Hoses for tap water supply and draining (x 2)
• Hose bands for 12.5mm [0.5 in] Hoses (x2)
INLET WATER FLOW/TEMPERATURE FOR CRYOCOOLER COMPRESSOR
*RECOMMENDED TEMPERATURE AND WATER FLOW TO CRY ENTRY
CITY WATER BACKUP SPECIFICATIONS FOR COMPRESSOR
0.5
1.0
1.5
2.0
2.5
3.0
30 40 50 60 70 9080 °F
MIN MAX
INLET TEMP 39.2°F
(4°C)
82.4°F (28°C)
INLET FLOW
1.0 gpm (4 l/min)
2.6 gpm (10 l/min)
TEMP RISE
89.6°F at 1.0 gpm (32°C at 4 l/min flow)
53.6°F at 2.6 gpm (12°C at 10 l/min flow) HEAT DISSIPATION (kW) 7.2 kW
PRESSURE DROP 8.7 psi at 2.1 gpm flow (60 kPa at 8 l/min flow)
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center M3 - Chilled Water 16
CRYOGENIC VENTING ( EXTERIOR )
OUTSIDE WALL
NOT TO SCALE
Vent cap (customer supplied) m m
[9 in m m
[2 in ]Se e no te
Warning sign
ROOF
Exclusion area
GROUND
ROOFTOP
m m
[2 in
3000mm [188 in]
Se e no te
NOTES
(1) Restricted area: minimum distance between vent pipe and ground is 3660mm [144 in]. Barriers are required.
Public area: barriers are not required if height is > 5000mm [197 in].
(2) The bottom of the 90° elbow must be at least 914mm [36 in] above the roof deck (or higher if at risk of being blocked by drifting snow, sand, or other potential obstructions.)
Exclusion Area
4600mm [180 in]
Depth of vent clearance:
6100mm [240in] Vent exit
Barrier
TYPICAL CRYOGENIC VENT PIPE DETAIL
[2 4.
in
[4 in
[3 in su pp lie d by G
E su pp lie d by c us to m er
±6
[1 in in
~2
[8 in
[4 in
FINISHED FLOOR
FR
O
N T
BA
CK
RF SHIELD
M
IN
M
IN
M
IN
Additional pipe/tubing
DIELECTRIC
BREAK
VENTGLAS
CONNECTOR
NOTE: for the Dielectric Break inside the Magnet room please see the Detail for the Cryogen Side Wall Exit
Waveguide is contractor supplied. Minimum 812 mm [32 in]. Must extend at least 100 mm [4 in] on magnet room side of the wall/ceiling and 25±6 mm [1±0.25 in] from the GE supplied pipe below isolation joint.
1. The 203 mm [8 in] OD vent material must be one of the following materials with the wall thickness indicated:
a. SS 304: Minimum 0.89 mm [0.035 in]; Maximum 3.18 mm [0.125 in]
b. AL 6061-T6: Minimum 2.11 mm [0.083 in]; Maximum 3.18 mm [0.125 in]
c. CU DWV, M or L: Minimum 2.11 mm [0.083 in]; Maximum 3.56 mm [0.140 in]
2. Either tubes or pipes may be used and must be seamless or have welded seams
NOTE
All welds on the pipe must be ground down to a smooth 203 mm [ 8 in] diameter so that it can be clamped to the Ventglas with enough force.
3. Corrugated pipe or spiral duct must not be used
4. If required, bellows pipe less than 300 mm [12 in] in length may be used as a thermal expansion joint
5. The vent pipe must withstand the maximum pressure listed in the Pre-Installation Manual
6. Waveguide vent material must match the outside diameter of the magnet flanged vent adapter
[8
8.
in
M
IN
[3 in
VENT PIPE
615 mm [24.2 in] long, may be cut to a minimum of 102 mm [4 in].
Two options are available:
· 203 mm [8 in] OD (M6001AA)
· 152 mm [6 in] OD (M6001AE)
MAGNET VENT ADAPTER
Do not remove or modify the vent adaptor bolted to the magnet.28
[1
.9 in
M
AX
12.7 mm [0.5 in] mesh bird screen
Vent cap must prevent ingress of weather elements due to strong winds (for example, rain, snow, hail, sand, and so on) and foreign material debris (for example, leaves, bird nests, and so on).
TYPICAL CRYOGEN SIDE WALL EXIT
RF WAVEGUIDE EXTENDED
KEY COMPONENTS:
· RF waveguide extended from wall to magnet adapter
· Must be all same material and all welded or brazed
· Support system must withstand 8229 N [1850 lbs]
· GE ventglas must be installed in vertical section directly over magnet
· Vent cap must prevent ingress of weather elements due to strong wind (for example, rain, snow, hail, sand, and so on) and foreign material debris (for example, leaves, bird nests, and so on).
38 [1.5 in] insulation rigid support
203 [8 in] ventglas outside RF room
Sweep elbow R = D of pipe
NOTE: for the Dielectric Break outside the Magnet room please see the Typical Cryogen Vent Pipe Detail
[8 8.
in m m [0
.4
1.
in
Platform enclosure shown.
Also available with classic enclosure.
OUTSIDE
Vent cap
Mesh bird
Screen
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center M4 - Cryogenics (1) 17
DateRev /25MRI-M248295-FIN-01-A.DWG A 02/MAR/2023SIGNA VOYAGER AIR EDITIONRoseburg VA Medical Center M5 - Cryogenics (2) 18
Outer dia.
of pipe (D)
Distance of vent system componen t from magnet
Pressure drop for straight pipe
Std sweep 45° elbow
Long sweep 45° elbow
Std sweep 90° elbow
Long sweep 90° elbow 90° miter ft m psi/ft kPa/m psi kPa psi kPa psi kPa psi kPa psi kPa
6 in.
(Inside dia.
≥144mm)
10 3.048 0.146 3.311 0.804 5.544 0.536 3.696 1.507 10.394 1.005 6.93 3.014 20.789
20 6.096 0.253 5.715 1.356 9.355 0.904 6.237 2.543 17.54 1.696 11.694 5.087 35.081
30 9.144 0.374 8.451 1.845 12.727 1.23 8.485 3.46 23.864 2.307 15.909 6.92 47.727
40 12.192 0.473 10.699 2.278 15.708 1.518 10.472 4.271 29.453 2.847 19.635 8.541 58.906
50 15.24 0.554 12.534 2.66 18.342 1.773 12.228 4.987 34.392 3.325 22.928 9.974 68.783
60 18.288 0.62 14.019 2.997 20.668 1.998 13.779 5.619 38.753 3.746 25.835 11.238 77.506
8 in.
(Inside dia.
≥195mm)
10 3.048 0.025 0.564 0.188 1.294 0.125 0.862 0.352 2.426 0.234 1.617 0.703 4.851
20 6.096 0.043 0.97 0.313 2.158 0.209 1.439 0.587 4.046 0.391 2.697 1.173 8.092
30 9.144 0.064 1.45 0.427 2.944 0.285 1.963 0.8 5.52 0.534 3.68 1.601 11.04
40 12.192 0.082 1.862 0.53 3.658 0.354 2.439 0.995 6.859 0.663 4.573 1.989 13.718
50 15.24 0.098 2.215 0.624 4.307 0.416 2.871 1.171 8.075 0.781 5.383 2.342 16.15
60 18.288 0.111 2.516 0.71 4.895 0.473 3.263 1.331 9.179 0.887 6.119 2.662 18.357
80 24.384 0.132 2.987 0.857 5.914 0.572 3.942 1.608 11.088 1.072 7.392 3.216 22.176
100 30.48 0.147 3.318 0.979 6.752 0.653 4.501 1.836 12.659 1.224 8.439 3.671 25.318
120 36.576 0.157 3.545 1.079 7.44 0.719 4.96 2.023 13.95 1.3490 9.3 4.046 27.901
140 42.672 0.163 3.693 1.161 8.006 0.774 5.338 2.177 15.012 1.451 10.008 4.353 30.024
160 48.768 0.167 3.784 1.228 8.471 0.819 5.648 2.303 15.884 1.535 10.589 4.606 31.768
180 54.864 0.169 3.833 1.2840 8.853 0.856 5.902 2.407 16.6 1.605 11.067 4.814 33.2
10 in.
(Inside dia.
≥247mm)
20 6.096 0.011 0.241 0.099 0.683 0.066 0.455 0.186 1.28 0.124 0.854 0.371 2.561
40 12.192 0.021 0.468 0.168 1.16 0.112 0.773 0.315 2.175 0.21 1.45 0.631 4.351
60 18.288 0.029 0.645 0.227 1.568 0.152 1.045 0.426 2.94 0.284 1.96 0.853 5.88
80 24.384 0.035 0.781 0.278 1.916 0.185 1.277 0.521 3.592 0.347 2.395 1.042 7.184
100 30.48 0.039 0.884 0.321 2.212 0.214 1.474 0.601 4.147 0.401 2.765 1.203 8.294
120 36.576 0.042 0.96 0.357 2.464 0.238 1.642 0.67 4.619 0.447 3.08 1.34 9.239
140 42.672 0.045 1.016 0.388 2.678 0.259 1.785 0.728 5.021 0.485 3.348 1.456 10.043
160 48.768 0.047 1.056 0.415 2.86 0.276 1.907 0.778 5.363 0.518 3.575 1.555 10.726
180 54.864 0.048 1.083 0.437 3.015 0.291 2.01 0.82 5.653 0.547 3.769 1.64 11.307
200 60.99 0.049 1.101 0.456 3.147 0.304 2.098 0.856 5.9 0.57 3.934 1.711 11.801
12 in.
(Inside dia.
≥298mm)
20 6.096 0.004 0.08 0.04 0.277 0.027 0.184 0.075 0.519 0.05 0.346 0.15 1.037
40 12.192 0.007 0.157 0.068 0.47 0.045 0.313 0.128 0.88 0.085 0.587 0.255 1.761
60 18.288 0.01 0.22 0.093 0.638 0.062 0.425 0.174 1.197 0.116 0.798 0.347 2.393
80 24.384 0.012 0.269 0.114 0.786 0.076 0.524 0.214 1.473 0.142 0.982 0.427 2.946
100 30.48 0.014 0.309 0.133 0.914 0.088 0.609 0.248 1.714 0.166 1.142 0.497 3.427
120 36.576 0.015 0.34 0.149 1.026 0.099 0.684 0.279 1.923 0.186 1.282 0.558 3.847
140 42.672 0.016 0.364 0.163 1.123 0.109 0.749 0.305 2.106 0.204 1.404 0.611 4.212
160 48.768 0.017 0.382 0.175 1.208 0.117 0.805 0.328 2.265 0.219 1.51 0.657 4.529
180 54.864 0.018 0.396 0.186 1.282 0.124 0.854 0.348 2.403 0.232 1.602 0.697 4.806
200 60.96 0.018 0.406 0.195 1.346 0.13 0.897 0.366 2.523 0.244 1.682 0.732 5.046
MAGNET CRYOGENIC VENT SYSTEM PRESSURE DROP MATRIX
Outer dia.
of pipe (D)
Distance of vent system componen t from magnet
Pressure drop for straight pipe
Std sweep 45° elbow
Long sweep 45° elbow
Std sweep 90° elbow
Long sweep 90° elbow 90° miter ft m psi/ft kPa/m psi kPa psi kPa psi kPa psi kPa psi kPa
14 in.
(Inside dia.
≥348mm)
20 6.096 0.001 0.032 0.019 0.13 0.013 0.086 0.035 0.243 0.024 0.162 0.071 0.486
40 12.192 0.003 0.063 0.032 0.219 0.021 0.146 0.06 0.411 0.04 0.274 0.119 0.823
60 18.288 0.004 0.088 0.043 0.299 0.029 0.2 0.081 0.561 0.054 0.374 0.163 1.122
80 24.384 0.005 0.11 0.054 0.37 0.036 0.247 0.101 0.694 0.067 0.463 0.201 1.389
100 30.48 0.006 0.127 0.063 0.433 0.042 0.289 0.118 0.812 0.079 0.542 0.236 1.625
120 36.576 0.006 0.141 0.071 0.489 0.047 0.326 0.133 0.917 0.089 0.611 0.266 1.834
140 42.672 0.007 0.152 0.078 0.539 0.052 0.359 0.146 1.01 0.098 0.673 0.293 2.02
160 48.768 0.007 0.161 0.084 0.582 0.056 0.388 0.158 1.092 0.106 0.728 0.317 2.184
180 54.864 0.007 0.169 0.090 0.621 0.06 0.414 0.169 1.164 0.113 0.776 0.338 2.329
200 60.96 0.008 0.174 0.095 0.655 0.063 0.437 0.178 1.229 0.119 0.819 0.356 2.457
16 in.
(Inside dia.
≥399mm)
20 6.096 0.001 0.014 0.01 0.068 0.007 0.045 0.018 0.127 0.012 0.084 0.037 0.253
40 12.192 0.001 0.028 0.017 0.114 0.011 0.076 0.0310 0.2130 0.021 0.142 0.062 0.427
60 18.288 0.002 0.04 0.023 0.156 0.015 0.104 0.042 0.292 0.028 0.195 0.085 0.584
80 24.384 0.002 0.05 0.028 0.193 0.019 0.129 0.053 0.362 0.035 0.242 0.105 0.725
100 30.48 0.003 0.059 0.033 0.227 0.022 0.151 0.062 0.426 0.041 0.284 0.124 0.852
120 36.576 0.003 0.066 0.037 0.258 0.025 0.172 0.07 0.483 0.047 0.322 0.14 0.966
140 42.6720 0.003 0.072 0.041 0.285 0.028 0.19 0.077 0.534 0.052 0.356 0.155 1.069
160 48.768 0.003 0.076 0.045 0.309 0.03 0.206 0.084 0.58 0.056 0.387 0.168 1.16
180 54.864 0.004 0.08 0.048 0.331 0.032 0.221 0.09 0.621 0.06 0.414 0.18 1.243
200 60.96 0.004 0.083 0.051 0.351 0.034 0.234 0.095 0.658 0.064 0.439 0.191 1.316
Notes
1. Elbows with angles greater than 90 deg must not be used
2. Data in Table is based on the following facts and assumptions:
a. Initial flow conditions at magnet interface
b. EM energy (13MJ) is dumped to He during quench and rises He temperature to 10 Kelvin
c. Gas temperature starting at 10 Kelvin and increase with length determined by thermal energy balance
d. 90% He is assumed to be evacuated within 30 sec. None left after quench.
e. Absolute roughness is assumed to be 0.25 mm.
f. R/D = 1.0 for standard sweep elbows, R/D = 1.5 for long sweep elbows where D = outer diameter of pipe;
R = radius of bend
3. The total pressure drop…
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