A0001 - RFI 1 ShieldingReportComplete.pdf
PDF 3 MB Posted
- Solicitation number
- 36C25021B0036
About this file
This solicitation is for relocating the Nuclear Medicine department at the Richard L. Roudebush VA Medical Facility in Indianapolis, Indiana. Key details include relocating the department to a new space, shielding the rooms including walls, doors and ceilings, and calculating shielding requirements. The solicitation involves calculating shielding needs for PET/CT, SPECT/CT, uptake rooms and a bathroom. Shielding materials, thicknesses and locations are specified for various radiation barriers. The required services also include assessing cardiac, bone and other nuclear imaging workload and procedures. The solicitation number is 36C25021B0036 and was issued by the Department of Veterans Affairs Veterans Health Administration VISN 10. The response is due by July 19, 2020.
View the file
Other files
Show 40 more
Latest 50 of 66 listed here. See the rest on GovTribe.
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
214 E. Huron Street 50 E. 91st Street, Suite 211 1731 E. Imperial Park Square N7375 Crystal Ridge Drive
Ann Arbor, MI 48104 Indianapolis, IN 46240 Salt Lake City, UT 84106 Beaver Dam, WI 53916
(734) 662-9224 Fax (317) 581-1931 Fax (734) 662-9224 Fax (734) 662-9224 Fax
(734) 662-3197 (317) 581-1911 (801) 272-2952 (920) 885-9870 www.mpcphysics.com
September 17, 2020
James Gooden, AIA, LEED AP BD+C, NCARB, CSI Sr. Project Manager + Architectural Team Leader Guidon Design
Mr. Gooden:
Enclosed, please find the calculations for the amount of shielding required in the Redesign of the Nuclear Medicine Suite at the Indianapolis Roudebush Veterans Administration Medical Center in Indianapolis, Indiana. This report covers both the SPECT/CT as well as PET/CT rooms in the department. Installing the specified required shielding will reduce the exposure to less than the most restrictive recommended levels, i.e. 2 mrem per week (100 mrem per year) to the general public, and 10 mrem per week (500 mrem per year) for radiation monitored employees.
When practical, shielding has been selected to further reduce the radiation exposures to individuals to a level that is As Low As Reasonably Achievable (ALARA). A copy of the architectural drawings of the department and a copy of this report with calculations should be kept on file for review by regulatory auditors.
Occupancy factors for all areas were determined in accordance with National Council on Radiation Protection and Measurements (NCRP) Report Number 147, Table 4.1 Suggested Occupancy Factors.
The following values were used in the shielding calculations and were supplied by your facility. If you do not agree with these factors and assumptions and find them insufficient, please contact me at once, as my calculations may not be valid. A narrative description of the shielding requirements and recommendations follows.
PET Patient Estimates:
➢ Number of PET patients per day: 20
➢ Number of imaging days per week: 5
➢ Injected dose: 12 millicuries F-18 FDG
➢ Uptake time: 60 minutes
➢ Imaging time: 30 minutes
➢ Imaging takes place in rooms A-B004 and A-B006
➢ Uptakes take place in rooms A-B002, A-B003, A-B012, A-B010, A-B009, and A-
B008 o Each uptake room holds 25 injected patients per week
Roudebush VAMC September 17, 2020
CT Workload of PET Scanner:
➢ 40 head/neck scans per week with a DLP of 1200 mGy*cm
➢ 120 body scans per week with a DLP of 550 mGy*cm
➢ 40% of patients receive contrast and are scanned twice
➢ The CT scanner will be used for attenuation correction of PET scans as well as overflow of diagnostic CT scans.
SPECT/CT Workload:
➢ Number of cardiac scans per week: 40 (20 stress and 20 rest)
➢ Cardiac dosages: 36 mCi for stress, 12 mCi for rest
➢ Number of bone scans per week: 10
➢ Bone dosage: 35 mCi
➢ Cardiac DLP of 1200 mGy*cm
➢ Bone DLP of 1200 mGy*cm
➢ Imaging takes place in rooms A-B029a and A-B029b
General Comments:
➢ Walls are to be constructed with leaded (Pb) drywall of specified thickness with the lead (Pb) extending from the floor to a height of at least seven feet. Shielding must be lapped along corners and any pull-out sections. The screws/nails do NOT need to be capped with lead (Pb).
➢ The patient viewing window and windowsill, door and jamb are to be lined with the same thickness of lead (Pb) as the wall that they penetrate, unless specified otherwise.
Be sure that the leaded frames overlap the lead (Pb) in the gypsum drywall.
➢ All electrical outlets, switches, and other penetrations of all shielded walls are to be backed with the same thickness of lead (Pb) as the wall that they penetrate.
➢ Shielding in the Hot Lab is to be accomplished through localized source shielding, rather than general room shielding.
➢ The following calculations are based on NCRP Report 147 and the report of AAPM Task Group 108.
Architectural Information
1. Diagrams of the scan and injection/uptake rooms, along with the adjacent areas, are enclosed.
2. The Nuclear Medicine department is located on the basement floor. There is not an occupied floor below the department. There is an occupied floor above the department. Occupancy of the adjacent areas as assumed in my calculations is stated in the following section.
3. Any change in the occupancy of surrounding areas will require the shielding requirements to be re-evaluated.
4. This is a redesign of the department. There is currently installed shielding in several of the walls. If the currently installed shielding meets or exceeds what I am recommending, no additional shielding need be installed in the specified wall.
5. The floor to ceiling height is 13 feet, 8 inches.
6. There is 9 inches of standard density concrete in the ceiling.
PET-CT Scan Room 1, Number A-B006
Wall Adjoining Area Weekly Exposure Rate Occupancy Factor(T)
North Exterior 2 mR/week (uncontrolled) 0.0 (earth)
East Equipment Room 10 mR/week (controlled) 0.05
West Control Room 10 mR/week (controlled) 1.0
South Corridor 10 mR/week (controlled) 0.2
Ceiling Another Department 2 mR/week (uncontrolled) 1.0
PET-CT Scan Room 2, Number A-B004
North Exterior 2 mR/week (uncontrolled) 0.0 (earth)
East Control Room 10 mR/week (controlled) 1.0
West Equipment Room 10 mR/week (controlled) 0.2
Uptake Room A-B002
North Exterior 2 mR/week (uncontrolled) 0.0 (earth)
East Uptake Rm A-B003 10 mR/week (controlled) 0.2
West Storage 2 mR/week (uncontrolled) 0.05
West Office 2 mR/week (uncontrolled) 1.0
Uptake Room A-B003
Wall Adjoining Area Weekly Exposure Rate Occupancy Factor(T)
North Exterior 2 mR/week (uncontrolled) 0.0 (earth)
East Equipment Rm 10 mR/week (controlled) 0.05
West Uptake Rm A-B002 10 mR/week (controlled) 0.2
Uptake Room A-B012
North Corridor 10 mR/week (controlled) 0.2
North Control Room 10 mR/week (controlled) 1.0
East Utility Room 2 mR/week (uncontrolled) 0.05
East Reading Room 10 mR/week (controlled) 1.0
West Corridor/Lounge 10 mR/week (controlled) 0.2
Uptake Room A-B010
North Uptake Rm A-B009 10 mR/week (controlled) 0.2
East Exterior 2 mR/week (uncontrolled) 0.05
West Corridor 10 mR/week (controlled) 0.2
South Reading Room 10 mR/week (controlled) 1.0
Uptake Room A-B009
North Uptake Rm A-B008 10 mR/week (controlled) 0.2
East Exterior 2 mR/week (uncontrolled) 0.05
West Corridor 10 mR/week (controlled) 0.2
South Uptake Rm A-B010 10 mR/week (controlled) 0.2
Uptake Room A-B008
North Hot Lab 10 mR/week (controlled) 0.2
East Exterior 2 mR/week (uncontrolled) 0.05
West Corridor 10 mR/week (controlled) 0.2
South Uptake Rm A-B009 10 mR/week (controlled) 0.2
Bathroom A-B028
North Scan Room 10 mR/week (controlled) 0.2
East Corridor 10 mR/week (controlled) 0.2
West Rest Room A-B027 10 mR/week (controlled) 0.05
SPECT-CT Scan Room 1, Number A-B029a
North Corridor 10 mR/week (controlled) 0.2
East Corridor 10 mR/week (controlled) 0.2
West Scan Room 2 10 mR/week (controlled) 0.2
South Control Room 10 mR/week (controlled) 1.0
SPECT-CT Scan Room 2, Number A-B029b
North Corridor 10 mR/week (controlled) 0.2
East Scan Room 1 10 mR/week (controlled) 0.2
West Corridor 10 mR/week (controlled) 0.2
South Control Room 10 mR/week (controlled) 1.0
Shielding Recommendations:
PET-CT Scan Room 1, Number A-B006 North Wall (Exterior):
Required shielding: No shielding necessary Comment: This wall is occupied by earth on the other side
East Wall and Door (Equipment Room):
Required shielding: 1/32 inch lead Comment: This was the original PET/CT control room and should already have more than 1/32 inch of lead installed in the wall.
South Wall and Door (Corridor, Rest Room, Waste Storage):
Required shielding: 1/16 inch of lead equivalent
West Wall (Control Room):
Required shielding: 1/16 inch of lead equivalent Comment: The required shielding must be installed in the wall, viewing window, and door.
Ceiling:
Required shielding: 4.39 inches of standard weight concrete Comment: The currently installed amount of concrete should provide adequate shielding such that no additional shielding need be installed.
PET-CT Scan Room 2, Number A-B004
Required shielding: No shielding necessary Comment: This wall is occupied by earth on the other side
East Wall and Door (Control Room):
Required shielding: 1/16 inch lead Comment: The required shielding must be installed in the wall, viewing window, and door.
South Wall and Door (Corridor, Rest Room):
Required shielding: 1/16 inch of lead equivalent
West Wall (Equipment Room):
Required shielding: 1/32 inch of lead equivalent
Ceiling:
Required shielding: 4.39 inches of standard weight concrete
Uptake Room A-B002
Required shielding: No shielding necessary Comment: This wall is occupied by earth on the other side
East Wall (Uptake Room A-B003):
Required shielding: No additional shielding Recommended shielding: 0.25 inch of lead Comment: Installation of the recommended amount of lead will reduce exposure in uptake room A-B003 to staff.
West Wall (Storage Room):
Required shielding: 0.25 inch of lead or 3.65 inches of standard density concrete Comment: Installation of the required shielding will adequately shield the area beyond the adjoining storage room.
South Wall (Corridor):
Required shielding: No shielding necessary Recommended shielding: 1/8 inch Comment: The installed shielding will reduce potential dose rates in the corridor.
Shielding should be installed in both walls and doors.
Ceiling:
Required shielding: 3.86 inches of standard weight concrete
Uptake Room A-B003
Required shielding: No shielding necessary Comment: This wall is occupied by earth on the other side
East Wall (Equipment Room):
Required shielding: No additional shielding Recommended shielding: 0.25 inch of lead Comment: Installation of the recommended amount of lead will reduce potential interference with the PET/CT scanner located in A-B004.
West Wall (Uptake Room A-B002):
Required shielding: No additional shielding Recommended shielding: 0.25 inch of lead or 3.65 inches of standard density concrete Comment: Installation of the recommended shielding will reduce dose rates to staff in uptake room A-B002. The recommended shielding is the total amount in the wall separating A-B002 and A-B003. It is not necessary to shield both the east wall of A-B002 and the west wall of A-B003.
South Wall (Corridor):
Required shielding: No shielding necessary Recommended shielding: 1/8 inch Comment: The installed shielding will reduce potential dose rates in the corridor.
Shielding should be installed in both walls and doors.
Ceiling:
Required shielding: 3.86 inches of standard weight concrete
Uptake Room A-B012
North Wall (Corridor):
Required shielding: No shielding necessary Recommended shielding: 1/8 inch Comment: The installed shielding will reduce potential dose rates in the corridor.
Shielding should be installed in both walls and doors.
East Wall (Reading Room, Utility Room):
Required shielding: 0.25 inch of lead Comment: Installation of the recommended amount of lead will reduce potential doses in the reading room.
West Wall (Corridor, Lounge):
Required shielding: 0.25 inch of lead
South Wall (Corridor):
Required shielding: 0.25 inch of lead
Ceiling:
Required shielding: 3.86 inches of standard weight concrete
Uptake Room A-B010
North Wall (Uptake Room A-B009):
Required shielding: No shielding necessary Recommended shielding: 1/4 inch Comment: The recommended shielding should already be installed in the wall. If that is the case, no additional shielding need be installed.
East Wall (Exterior):
Required shielding: No shielding necessary
West Wall (Corridor):
Required shielding: No shielding necessary Recommended shielding: 1/8 inch in walls and doors Comment: The recommended shielding should already be installed in the wall. If that is the case, no additional shielding need be installed.
South Wall (Reading Room):
Required shielding: 0.5 inch of lead Recommended shielding: 1 inch of lead Comment: The required shielding (1/2 inch) should already be installed in the wall.
Installation of an additional ½ inch of lead will bring the total to 1 inch and will reduce the dose in the reading room to below 100 mrem per year.
Ceiling:
Required shielding: 3.86 inches of standard weight concrete
Uptake Room A-B009
North Wall (Uptake Room A-B008):
Required shielding: No shielding necessary Recommended shielding: 1/4 inch Comment: Installation of the recommended shielding will reduce dose rates to staff in uptake room A-B008. The recommended shielding is the total amount in the wall separately A-B009 and A-B008. It is not necessary to shield both the south wall of A- B008 and the north wall of A-B009. The recommended shielding should already be installed in the wall. If that is the case, no additional shielding need be installed.
East Wall (Exterior):
Required shielding: No shielding necessary
West Wall (Corridor):
Required shielding: No shielding necessary Recommended shielding: 1/8 inch in walls and doors Comment: The recommended shielding should already be installed in the wall. If that is the case, no additional shielding need be installed.
South Wall (Uptake Room A-B010):
Required shielding: No shielding necessary Recommended shielding: 1/4 inch Comment: Installation of the recommended shielding will reduce dose rates to staff in uptake room A-B010. The recommended shielding is the total amount in the wall separating A-B010 and A-B009. It is not necessary to shield both the south wall of A- B009 and the north wall of A-B010. The recommended shielding should already be installed in the wall. If that is the case, no additional shielding need be installed.
Ceiling:
Required shielding: 3.86 inches of standard weight concrete
Uptake Room A-B008
North Wall (Hot Lab):
Required shielding: No shielding necessary Recommended shielding: 1/4 inch Comment: Installation of the recommended shielding will reduce dose rates to staff in the Hot Lab. The recommended shielding should already be installed in the wall. If that is the case, no additional shielding need be installed.
East Wall (Exterior):
Required shielding: No shielding necessary
West Wall (Corridor):
Required shielding: No shielding necessary Recommended shielding: 1/8 inch in walls and doors Comment: The recommended shielding should already be installed in the wall. If that is the case, no additional shielding need be installed.
South Wall (Uptake Room A-B009):
Required shielding: No shielding necessary Recommended shielding: 1/4 inch Comment: Installation of the recommended shielding will reduce dose rates to staff in uptake room A-B009. The recommended shielding is the total amount in the wall separating A-B008 and A-B009. It is not necessary to shield both the south wall of A- B008 and the north wall of A-B009. The recommended shielding should already be installed in the wall. If that is the case, no additional shielding need be installed.
Ceiling:
Required shielding: 3.86 inches of standard weight concrete
Bathroom Room A-B028
North Wall (Scan Room A-B006):
Required shielding: No additional shielding needed
East Wall (Corridor):
Required shielding: No additional shielding needed
South Wall (Corridor):
Required shielding: No additional shielding needed
West Wall (Restroom A-B027):
Required shielding: No additional shielding needed
SPECT-CT Scan Room 1, Number A-B029a
Required shielding: 1/16 inch of lead Recommended shielding: 0.25 inch of lead Comment: Installation of the recommended shielding will reduce interference with the gamma camera as PET patients traverse the corridor.
East Wall (Corridor):
Required shielding: 1/16 inch of lead Recommended shielding: 0.25 inch of lead Comment: Installation of the recommended shielding will reduce interference with the gamma camera as PET patients traverse the corridor.
East Wall and Door (Corridor):
Required shielding: 1/16 inch of lead
South Wall (Control Room):
Required shielding: No additional shielding Recommended shielding: 1/16 inch of lead Comment: Installation of the recommended shielding will reduce doses to the control room.
West Wall (Scan Room 2):
Required shielding: No additional shielding Recommended shielding: 1/8 inch of lead equivalent Comment: Installation of the recommended shielding will prevent interference between the two gamma cameras.
Ceiling:
Required shielding: No additional shielding
SPECT-CT Scan Room 2, Number A-B029b
Required shielding: 1/16 inch of lead Recommended shielding: 0.25 inch of lead Comment: Installation of the recommended shielding will reduce interference with the gamma camera as PET patients traverse the corridor.
West Wall (Corridor):
Required shielding: 1/16 inch of lead Recommended shielding: 0.25 inch of lead Comment: Installation of the recommended shielding will reduce interference with the gamma camera as PET patients traverse the corridor.
West Wall and Door (Corridor):
Required shielding: 1/16 inch of lead
South Wall (Control Room):
Required shielding: No additional shielding Recommended shielding: 1/16 inch of lead Comment: Installation of the recommended shielding will reduce doses to the control room.
East Wall (Scan Room 1):
Required shielding: No additional shielding Recommended shielding: 1/8 inch of lead equivalent Comment: Installation of the recommended shielding will prevent interference between the two gamma cameras.
Required shielding: No additional shielding
Radioactive Waste Storage Room, Number A-B007a North Wall (PET/CT 1 Room):
Recommended shielding: 0.25 inch of lead
West Wall (Corridor):
Recommended shielding: 0.25 inch of lead
South Wall and Door (Hot Lab):
Recommended shielding: 0.25 inch of lead
East Wall (Exterior):
Recommended shielding: No additional shielding
Recommended shielding: No additional shielding
If you have any questions regarding this report or if I may be of assistance, please contact me by phone at 877-317-5811 or by e-mail at pbyrne@mpcphysics.com.
Respectfully yours, Patrick J. Byrne, DABR, CHP, DABSNM American Board of Radiology Certified
Administered Activity (Ao) Scanner Reduction
PET-CT IMAGING ROOM (mCi) Factor (Sf)
PET SHIELDING CALCULATIONS Enter 12.0 0.850
Imaging Time (ti) Urine Void
Facility: Roudebush VA Medical Center (min) Reduction Factor (Uf)
Enter 60 0.850
Date: 7/20/2020
Uptake Time (Tu) Decay Reduction
Physicist: Patrick J. Byrne (min) Factor (Rti)
Enter 60 0.832
Room Number: PET/CT 1 A-B006
Patients per Week (Nw) Imaging Room
Enter 50 Decay Factor (Fu)
0.685
Equation #9 AAPM TG 108 Patient Dose Rate (F-18)
Weekly Dose = ((0.092 uSv m2 /MBq h) x Nw x Ao(MBq) x Sf x Uf x Fu x ti(h) x Rti / d(m)2) x T uSv-m2/MBq-h
Equation #10 AAPM TG 108 0.092
Transmission Factor (B) = 10.9 x P x d(m)2 /(T x Nw x Ao(MBq) x Sf x Fu x tI(h) x Rti)
Barrier: North Wall East Wall South Wall West Wall Ceiling Floor
Description: Exterior Equip Rm Corridor Control Rm On grade
Occupancy Factor (T) 0.050 0.050 0.200 1.000 1.000
Annual Limit (mSv) (P) 1.0 5.0 5.0 5.0 1.0
(100 mRem = 1 mSv)
Distance (inches) 113.00 124.00 120.00 249.00 164.00 uSv per week 5.11 4.24 18.12 21.04 48.51
Equation #9 AAPM TG 108
B* Transmission Factor 3.93 23.64 5.53 4.77 0.41
Equation #10 AAPM TG 108
Pb Thickness (mm) 0.00 0.00 0.00 0.00 6.61
Concrete Thickness (cm) 0.00 0.00 0.00 0.00 9.73
Pb Thickness (in) 0.00 0.00 0.00 0.00 0.26
Concrete Thickness (in) 0.00 0.00 0.00 0.00 3.83
Dose equivalent Rate Constants and Barrier Transmission Data from
PET-CT1 Shielding.xlsm
Facility: Roudebush VA Medical Center Imaging Room Page Two
Date: 7/20/2020
Physicist: Patrick J. Byrne
Room Number: PET/CT 1 A-B006
Barrier: North Wall East Wall South Wall West Wall 0 Ceiling Floor
Description: Exterior Equip Rm Corridor Control Rm 0 0 On grade
Pb Thickness (mm) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
0 0.26 0.21 0.91 1.05 2.43
1 0.23 0.19 0.81 0.94 2.16
2 0.20 0.17 0.71 0.83 1.91
3 0.18 0.15 0.63 0.73 1.67
4 0.15 0.13 0.55 0.63 1.46
5 0.13 0.11 0.47 0.55 1.27
6 0.12 0.10 0.41 0.48 1.10
7 0.10 0.08 0.35 0.41 0.95
8 0.09 0.07 0.30 0.35 0.82
9 0.07 0.06 0.26 0.30 0.70
10 0.06 0.05 0.23 0.26 0.60
12 0.05 0.04 0.17 0.19 0.44
14 0.03 0.03 0.12 0.14 0.33
16 0.03 0.02 0.09 0.10 0.24
18 0.02 0.02 0.07 0.08 0.18
20 0.01 0.01 0.05 0.06 0.13
25 0.01 0.01 0.02 0.03 0.06
30 0.00 0.00 0.01 0.01 0.03
40 0.00 0.00 0.00 0.00 0.01
50 0.00 0.00 0.00 0.00 0.00
Concrete Thickness (cm) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
0 0.26 0.21 0.91 1.05 2.43
1 0.24 0.20 0.87 1.01 2.32
2 0.23 0.19 0.82 0.96 2.20
3 0.22 0.18 0.77 0.90 2.07
4 0.20 0.17 0.71 0.83 1.91
5 0.18 0.15 0.65 0.76 1.75
6 0.17 0.14 0.59 0.69 1.58
7 0.15 0.12 0.53 0.61 1.42
8 0.13 0.11 0.47 0.54 1.26
9 0.12 0.10 0.41 0.48 1.11
10 0.10 0.08 0.36 0.42 0.97
12 0.08 0.06 0.27 0.32 0.73
14 0.06 0.05 0.20 0.24 0.54
16 0.04 0.04 0.15 0.17 0.40
18 0.03 0.03 0.11 0.13 0.30
20 0.02 0.02 0.08 0.10 0.22
25 0.01 0.01 0.04 0.04 0.10
30 0.00 0.00 0.02 0.02 0.05
40 0.00 0.00 0.00 0.00 0.01 PET-CT1 Shielding.xlsm
50 0.00 0.00 0.00 0.00 0.00
Facility: Roudebush VA Medical Center Imaging Room Page Three
Date: 7/20/2020
Physicist: Patrick J. Byrne
Room Number: PET/CT 1 A-B006
Barrier: North Wall East Wall South Wall West Wall 0 Ceiling Floor
Description: Exterior Equip Rm Corridor Control Rm 0 0 On grade
Pb Thickness (inches) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
1/32 0.23 0.19 0.83 0.96 2.22
1/16 0.21 0.18 0.75 0.87 2.01
3/32 0.19 0.16 0.68 0.79 1.82
1/8 0.17 0.14 0.61 0.71 1.64
3/16 0.14 0.11 0.49 0.57 1.31
1/4 0.11 0.09 0.39 0.45 1.04
5/16 0.09 0.07 0.31 0.36 0.82
3/8 0.07 0.06 0.24 0.28 0.65
7/16 0.05 0.04 0.19 0.22 0.51
1/2 0.04 0.03 0.15 0.17 0.40
5/8 0.03 0.02 0.09 0.11 0.24
3/4 0.02 0.01 0.06 0.07 0.15
7/8 0.01 0.01 0.03 0.04 0.09
1 0.01 0.00 0.02 0.02 0.06
1 1/32 0.01 0.00 0.02 0.02 0.05
1 1/16 0.00 0.00 0.02 0.02 0.04
1 3/32 0.00 0.00 0.01 0.02 0.04
1 1/8 0.00 0.00 0.01 0.01 0.03
1 3/16 0.00 0.00 0.01 0.01 0.03
1 1/4 0.00 0.00 0.01 0.01 0.02
Concrete Thickness (inches) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
0.5 0.24 0.20 0.86 0.99 2.29
1.0 0.22 0.19 0.80 0.92 2.13
1.5 0.20 0.17 0.73 0.84 1.94
2.0 0.18 0.15 0.65 0.75 1.74
2.5 0.16 0.13 0.57 0.66 1.52
3.0 0.14 0.12 0.49 0.57 1.32
3.5 0.12 0.10 0.42 0.49 1.12
4.0 0.10 0.08 0.35 0.41 0.95
4.5 0.08 0.07 0.30 0.34 0.79
5.0 0.07 0.06 0.25 0.29 0.66
5.5 0.06 0.05 0.20 0.24 0.55
6.0 0.05 0.04 0.17 0.20 0.45
6.5 0.04 0.03 0.14 0.16 0.37
7.0 0.03 0.03 0.11 0.13 0.31
7.5 0.03 0.02 0.09 0.11 0.25
8.0 0.02 0.02 0.08 0.09 0.21
8.5 0.02 0.02 0.06 0.07 0.17
9.0 0.01 0.01 0.05 0.06 0.14
9.5 0.01 0.01 0.04 0.05 0.12
10.0 0.01 0.01 0.04 0.04 0.10
10.5 0.01 0.01 0.03 0.03 0.08 PET-CT1 Shielding.xlsm
PET-CT IMAGING ROOM Head/Neck Procedures / Week Technique (DLP) Head/Neck
CT SHIELDING CALCULATIONS Enter 40 Enter 1200
Whole Body Procedures / Week Technique (DLP) Whole Body
Facility: Roudebush VA Medical Center Enter 120 Enter 550
Date: 7/20/2020 % of these procedures that are scanned twice. (Contrast) Technique (kVp)
Physicist: Patrick J. Byrne Enter 40 Enter 120
Room Number: PET/CT 1 A-B006 Total # Procedures / Week
NCRP 147 Equation A2
Barrier: North Wall East Wall South Wall West Wall Ceiling Floor
Description: Exterior Equip Rm Corridor Control Rm On grade
Occupancy Factor (T) 0.0 0.050 0.200 1.000 1.000
Annual Limit (mSv) (P) 1.0 5.0 5.0 5.0 1.0
100 mRem = 1 mSv
Distance (inches) 113.00 124.00 120.00 249.00 164.00
Exposure Limit (mSv) 0.02 0.1 0.1 0.1 0.02
Weekly (P)
Distance (m) 2.87 3.15 3.05 6.32 4.17
Incident Scatter 4.77 3.96 4.23 0.98 2.27
(mGy/wk) (Sc)
Transmission Factor (B) 0.335 0.505 0.118 0.102 0.009
Pb Thickness (mm) (X) 0.17 0.10 0.39 0.43 1.22
Concrete Thickness (cm) (X) 2.26 1.38 4.67 5.03 11.16
Steel Thickness (cm) (X) 0.08 0.04 0.23 0.25 0.96
Pb Thickness (in) 0.01 0.00 0.02 0.02 0.05
Concrete Thickness (in) 0.89 0.54 1.84 1.98 4.39
Steel Thickness (in) 0.03 0.02 0.09 0.10 0.38
Physicist: Patrick J. Byrne
Room Number: PET/CT 1 A-B006
Barrier: North Wall East Wall South Wall West Wall 0 Ceiling Floor
Description: Exterior Equip Rm Corridor Control Rm 0 0 On grade
Pb Thickness (inches) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
1/32 0.09 0.29 1.25 1.45 #VALUE! #VALUE! 3.35 #VALUE!
1/16 0.01 0.03 0.14 0.17 #VALUE! #VALUE! 0.38 #VALUE!
3/32 0.00 0.00 0.02 0.02 #VALUE! #VALUE! 0.06 #VALUE!
1/8 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.01 #VALUE!
3/16 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
1/4 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
5/16 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
3/8 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
7/16 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
1/2 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
5/8 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
3/4 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
7/8 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
1 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
1 1/32 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
1 1/16 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
1 3/32 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
1 1/8 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
1 3/16 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
1 1/4 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
Steel Thickness (inches) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
1/32 1.01 3.35 14.30 16.61 #VALUE! #VALUE! 38.29 #VALUE!
1/16 0.53 1.77 7.55 8.76 #VALUE! #VALUE! 20.20 #VALUE!
3/32 0.33 1.10 4.69 5.45 #VALUE! #VALUE! 12.56 #VALUE!
1/8 0.22 0.74 3.18 3.69 #VALUE! #VALUE! 8.51 #VALUE!
3/16 0.12 0.39 1.67 1.94 #VALUE! #VALUE! 4.48 #VALUE!
1/4 0.07 0.23 0.98 1.14 #VALUE! #VALUE! 2.62 #VALUE!
5/16 0.04 0.14 0.60 0.70 #VALUE! #VALUE! 1.62 #VALUE!
3/8 0.03 0.09 0.39 0.45 #VALUE! #VALUE! 1.03 #VALUE!
7/16 0.02 0.06 0.25 0.29 #VALUE! #VALUE! 0.68 #VALUE!
1/2 0.01 0.04 0.17 0.20 #VALUE! #VALUE! 0.45 #VALUE!
5/8 0.01 0.02 0.08 0.09 #VALUE! #VALUE! 0.20 #VALUE!
3/4 0.00 0.01 0.04 0.04 #VALUE! #VALUE! 0.09 #VALUE!
7/8 0.00 0.00 0.02 0.02 #VALUE! #VALUE! 0.04 #VALUE!
1 0.00 0.00 0.01 0.01 #VALUE! #VALUE! 0.02 #VALUE!
1 1/32 0.00 0.00 0.01 0.01 #VALUE! #VALUE! 0.02 #VALUE!
1 1/16 0.00 0.00 0.01 0.01 #VALUE! #VALUE! 0.01 #VALUE!
1 3/32 0.00 0.00 0.00 0.01 #VALUE! #VALUE! 0.01 #VALUE!
1 1/8 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.01 #VALUE!
1 3/16 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.01 #VALUE!
1 1/4 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
Physicist: Patrick J. Byrne
Room Number: PET/CT 1 A-B006
Barrier: North Wall East Wall South Wall West Wall 0 Ceiling Floor
Description: Exterior Equip Rm Corridor Control Rm 0 0 On grade
Concrete Thickness (inches) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
0.5 1.58 5.26 22.46 26.08 #VALUE! #VALUE! 60.13 #VALUE!
1.0 0.88 2.93 12.51 14.53 #VALUE! #VALUE! 33.50 #VALUE!
1.5 0.51 1.68 7.19 8.35 #VALUE! #VALUE! 19.25 #VALUE!
2.0 0.30 0.99 4.22 4.90 #VALUE! #VALUE! 11.29 #VALUE!
2.5 0.18 0.59 2.51 2.91 #VALUE! #VALUE! 6.71 #VALUE!
3.0 0.11 0.35 1.51 1.75 #VALUE! #VALUE! 4.03 #VALUE!
3.5 0.06 0.21 0.91 1.06 #VALUE! #VALUE! 2.44 #VALUE!
4.0 0.04 0.13 0.55 0.64 #VALUE! #VALUE! 1.48 #VALUE!
4.5 0.02 0.08 0.34 0.39 #VALUE! #VALUE! 0.90 #VALUE!
5.0 0.01 0.05 0.21 0.24 #VALUE! #VALUE! 0.55 #VALUE!
5.5 0.01 0.03 0.13 0.15 #VALUE! #VALUE! 0.34 #VALUE!
6.0 0.01 0.02 0.08 0.09 #VALUE! #VALUE! 0.21 #VALUE!
6.5 0.00 0.01 0.05 0.05 #VALUE! #VALUE! 0.13 #VALUE!
7.0 0.00 0.01 0.03 0.03 #VALUE! #VALUE! 0.08 #VALUE!
7.5 0.00 0.00 0.02 0.02 #VALUE! #VALUE! 0.05 #VALUE!
8.0 0.00 0.00 0.01 0.01 #VALUE! #VALUE! 0.03 #VALUE!
9.0 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.01 #VALUE!
9.5 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.01 #VALUE!
10.0 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
10.5 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
11.0 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
11.5 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
12.0 0.00 0.00 0.00 0.00 #VALUE! #VALUE! 0.00 #VALUE!
Administered Activity (Ao) Scanner Reduction
PET-CT IMAGING ROOM (mCi) Factor (Sf)
PET SHIELDING CALCULATIONS Enter 12.0 0.850
Imaging Time (ti) Urine Void
Facility: Roudebush VA Medical Center (min) Reduction Factor (Uf)
Enter 60 0.850
Date: 7/20/2020
Uptake Time (Tu) Decay Reduction
Physicist: Patrick J. Byrne (min) Factor (Rti)
Enter 60 0.832
Room Number: PET/CT 2 A-B004
Patients per Week (Nw) Imaging Room
Enter 50 Decay Factor (Fu)
0.685
Equation #9 AAPM TG 108 Patient Dose Rate (F-18)
Weekly Dose = ((0.092 uSv m2 /MBq h) x Nw x Ao(MBq) x Sf x Uf x Fu x ti(h) x Rti / d(m)2) x T uSv-m2/MBq-h
Equation #10 AAPM TG 108 0.092
Transmission Factor (B) = 10.9 x P x d(m)2 /(T x Nw x Ao(MBq) x Sf x Fu x tI(h) x Rti)
Barrier: North Wall East Wall South Wall West Wall West Wall Ceiling Floor
Description: Exterior Control Room Corridor Equip Rm Uptake Rm On grade
Occupancy Factor (T) 0.050 1.000 0.200 0.200 0.200 1.000
Annual Limit (mSv) (P) 1.0 5.0 5.0 5.0 5.0 1.0
Distance (inches) 113.00 216.00 120.00 212.00 300.00 164.00 uSv per week 5.11 27.96 18.12 5.81 2.90 48.51
Equation #9 AAPM TG 108
B* Transmission Factor 3.93 3.59 5.53 17.27 34.59 0.41
Equation #10 AAPM TG 108
Pb Thickness (mm) 0.00 0.00 0.00 0.00 0.00 6.61
Concrete Thickness (cm) 0.00 0.00 0.00 0.00 0.00 9.73
Pb Thickness (in) 0.00 0.00 0.00 0.00 0.00 0.26
Concrete Thickness (in) 0.00 0.00 0.00 0.00 0.00 3.83
Dose equivalent Rate Constants and Barrier Transmission Data from
PET-CT2 Shielding.xlsm
Physicist: Patrick J. Byrne
Room Number: PET/CT 2 A-B004
Barrier: North Wall East Wall South Wall West Wall West Wall Ceiling Floor
Description: Exterior Control Room Corridor Equip Rm Uptake Rm 0 On grade
Pb Thickness (mm) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
0 0.26 1.40 0.91 0.29 0.14 2.43
1 0.23 1.25 0.81 0.26 0.13 2.16
2 0.20 1.10 0.71 0.23 0.11 1.91
3 0.18 0.97 0.63 0.20 0.10 1.67
4 0.15 0.84 0.55 0.17 0.09 1.46
5 0.13 0.73 0.47 0.15 0.08 1.27
6 0.12 0.63 0.41 0.13 0.07 1.10
7 0.10 0.55 0.35 0.11 0.06 0.95
8 0.09 0.47 0.30 0.10 0.05 0.82
9 0.07 0.40 0.26 0.08 0.04 0.70
10 0.06 0.35 0.23 0.07 0.04 0.60
12 0.05 0.26 0.17 0.05 0.03 0.44
14 0.03 0.19 0.12 0.04 0.02 0.33
16 0.03 0.14 0.09 0.03 0.01 0.24
18 0.02 0.10 0.07 0.02 0.01 0.18
20 0.01 0.07 0.05 0.02 0.01 0.13
25 0.01 0.03 0.02 0.01 0.00 0.06
30 0.00 0.02 0.01 0.00 0.00 0.03
40 0.00 0.00 0.00 0.00 0.00 0.01
50 0.00 0.00 0.00 0.00 0.00 0.00
Concrete Thickness (cm) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
0 0.26 1.40 0.91 0.29 0.14 2.43
1 0.24 1.34 0.87 0.28 0.14 2.32
2 0.23 1.27 0.82 0.26 0.13 2.20
3 0.22 1.19 0.77 0.25 0.12 2.07
4 0.20 1.10 0.71 0.23 0.11 1.91
5 0.18 1.01 0.65 0.21 0.10 1.75
6 0.17 0.91 0.59 0.19 0.09 1.58
7 0.15 0.82 0.53 0.17 0.08 1.42
8 0.13 0.72 0.47 0.15 0.08 1.26
9 0.12 0.64 0.41 0.13 0.07 1.11
10 0.10 0.56 0.36 0.12 0.06 0.97
12 0.08 0.42 0.27 0.09 0.04 0.73
14 0.06 0.31 0.20 0.07 0.03 0.54
16 0.04 0.23 0.15 0.05 0.02 0.40
18 0.03 0.17 0.11 0.04 0.02 0.30
20 0.02 0.13 0.08 0.03 0.01 0.22
25 0.01 0.06 0.04 0.01 0.01 0.10
30 0.00 0.03 0.02 0.01 0.00 0.05
40 0.00 0.01 0.00 0.00 0.00 0.01 PET-CT2 Shielding.xlsm
50 0.00 0.00 0.00 0.00 0.00 0.00
Date: 7/20/2020
Physicist: Patrick J. Byrne
Room Number: PET/CT 2 A-B004
Barrier: North Wall East Wall South Wall West Wall West Wall Ceiling Floor
Description: Exterior Control Room Corridor Equip Rm Uptake Rm 0 On grade
Pb Thickness (inches) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
1/32 0.23 1.28 0.83 0.27 0.13 2.22
1/16 0.21 1.16 0.75 0.24 0.12 2.01
3/32 0.19 1.05 0.68 0.22 0.11 1.82
1/8 0.17 0.94 0.61 0.20 0.10 1.64
3/16 0.14 0.76 0.49 0.16 0.08 1.31
1/4 0.11 0.60 0.39 0.12 0.06 1.04
5/16 0.09 0.47 0.31 0.10 0.05 0.82
3/8 0.07 0.37 0.24 0.08 0.04 0.65
7/16 0.05 0.29 0.19 0.06 0.03 0.51
1/2 0.04 0.23 0.15 0.05 0.02 0.40
5/8 0.03 0.14 0.09 0.03 0.01 0.24
3/4 0.02 0.09 0.06 0.02 0.01 0.15
7/8 0.01 0.05 0.03 0.01 0.01 0.09
1 0.01 0.03 0.02 0.01 0.00 0.06
1 1/32 0.01 0.03 0.02 0.01 0.00 0.05
1 1/16 0.00 0.03 0.02 0.01 0.00 0.04
1 3/32 0.00 0.02 0.01 0.00 0.00 0.04
1 1/8 0.00 0.02 0.01 0.00 0.00 0.03
1 3/16 0.00 0.02 0.01 0.00 0.00 0.03
1 1/4 0.00 0.01 0.01 0.00 0.00 0.02
Concrete Thickness (inches) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
0.5 0.24 1.32 0.86 0.27 0.14 2.29
1.0 0.22 1.23 0.80 0.26 0.13 2.13
1.5 0.20 1.12 0.73 0.23 0.12 1.94
2.0 0.18 1.00 0.65 0.21 0.10 1.74
2.5 0.16 0.88 0.57 0.18 0.09 1.52
3.0 0.14 0.76 0.49 0.16 0.08 1.32
3.5 0.12 0.65 0.42 0.13 0.07 1.12
4.0 0.10 0.55 0.35 0.11 0.06 0.95
4.5 0.08 0.46 0.30 0.09 0.05 0.79
5.0 0.07 0.38 0.25 0.08 0.04 0.66
5.5 0.06 0.32 0.20 0.07 0.03 0.55
6.0 0.05 0.26 0.17 0.05 0.03 0.45
6.5 0.04 0.22 0.14 0.04 0.02 0.37
7.0 0.03 0.18 0.11 0.04 0.02 0.31
7.5 0.03 0.15 0.09 0.03 0.02 0.25
8.0 0.02 0.12 0.08 0.02 0.01 0.21
8.5 0.02 0.10 0.06 0.02 0.01 0.17
9.0 0.01 0.08 0.05 0.02 0.01 0.14
9.5 0.01 0.07 0.04 0.01 0.01 0.12
10.0 0.01 0.06 0.04 0.01 0.01 0.10
10.5 0.01 0.05 0.03 0.01 0.00 0.08 PET-CT2 Shielding.xlsm
PET-CT IMAGING ROOM Head/Neck Procedures / Week Technique (DLP) Head/Neck
Whole Body Procedures / Week Technique (DLP) Whole Body
Facility: Roudebush VA Medical Center Enter 120 Enter 550
Date: 7/20/2020 % of these procedures that are scanned twice. (Contrast) Technique (kVp)
Physicist: Patrick J. Byrne Enter 40 Enter 120
Room Number: PET/CT 2 A-B004 Total # Procedures / Week
Barrier: North Wall East Wall South Wall West Wall West Wall Ceiling Floor
Description: Exterior Control Room Corridor Equip Rm Uptake Rm On grade
Occupancy Factor (T) 0.1 1.000 0.200 0.200 0.200 1.000
Annual Limit (mSv) (P) 1.0 5.0 5.0 5.0 5.0 1.0
100 mRem = 1 mSv
Distance (inches) 113.00 216.00 120.00 212.00 280.00 164.00
Exposure Limit (mSv) 0.02 0.1 0.1 0.1 0.1 0.02
Distance (m) 2.87 5.49 3.05 5.38 7.11 4.17
Incident Scatter 4.77 1.31 4.23 1.36 0.78 2.27
(mGy/wk) (Sc)
Transmission Factor (B) 0.084 0.077 0.118 0.369 0.643 0.009
Pb Thickness (mm) (X) 0.48 0.51 0.39 0.15 0.06 1.22
Concrete Thickness (cm) (X) 5.50 5.72 4.67 2.05 0.87 11.16
Steel Thickness (cm) (X) 0.29 0.31 0.23 0.07 0.03 0.96
Pb Thickness (in) 0.02 0.02 0.02 0.01 0.00 0.05
Concrete Thickness (in) 2.17 2.25 1.84 0.81 0.34 4.39
Steel Thickness (in) 0.12 0.12 0.09 0.03 0.01 0.38
Physicist: Patrick J. Byrne
Room Number: PET/CT 2 A-B004
Barrier: North Wall East Wall South Wall West Wall West Wall Ceiling Floor
Description: Exterior Control Room Corridor Equip Rm Uptake Rm 0 On grade
Pb Thickness (inches) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
1/32 0.35 1.93 1.25 0.40 0.23 #VALUE! 3.35 #VALUE!
1/16 0.04 0.22 0.14 0.05 0.03 #VALUE! 0.38 #VALUE!
3/32 0.01 0.03 0.02 0.01 0.00 #VALUE! 0.06 #VALUE!
1/8 0.00 0.01 0.00 0.00 0.00 #VALUE! 0.01 #VALUE!
3/16 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
1/4 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
5/16 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
3/8 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
7/16 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
1/2 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
5/8 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
3/4 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
7/8 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
1 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
1 1/32 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
1 1/16 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
1 3/32 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
1 1/8 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
1 3/16 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
1 1/4 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
Steel Thickness (inches) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
1/32 4.03 22.07 14.30 4.58 2.63 #VALUE! 38.29 #VALUE!
1/16 2.13 11.64 7.55 2.42 1.39 #VALUE! 20.20 #VALUE!
3/32 1.32 7.24 4.69 1.50 0.86 #VALUE! 12.56 #VALUE!
1/8 0.90 4.90 3.18 1.02 0.58 #VALUE! 8.51 #VALUE!
3/16 0.47 2.58 1.67 0.54 0.31 #VALUE! 4.48 #VALUE!
1/4 0.28 1.51 0.98 0.31 0.18 #VALUE! 2.62 #VALUE!
5/16 0.17 0.93 0.60 0.19 0.11 #VALUE! 1.62 #VALUE!
3/8 0.11 0.60 0.39 0.12 0.07 #VALUE! 1.03 #VALUE!
7/16 0.07 0.39 0.25 0.08 0.05 #VALUE! 0.68 #VALUE!
1/2 0.05 0.26 0.17 0.05 0.03 #VALUE! 0.45 #VALUE!
5/8 0.02 0.12 0.08 0.02 0.01 #VALUE! 0.20 #VALUE!
3/4 0.01 0.05 0.04 0.01 0.01 #VALUE! 0.09 #VALUE!
7/8 0.00 0.03 0.02 0.01 0.00 #VALUE! 0.04 #VALUE!
1 0.00 0.01 0.01 0.00 0.00 #VALUE! 0.02 #VALUE!
1 1/32 0.00 0.01 0.01 0.00 0.00 #VALUE! 0.02 #VALUE!
1 1/16 0.00 0.01 0.01 0.00 0.00 #VALUE! 0.01 #VALUE!
1 3/32 0.00 0.01 0.00 0.00 0.00 #VALUE! 0.01 #VALUE!
1 1/8 0.00 0.01 0.00 0.00 0.00 #VALUE! 0.01 #VALUE!
1 3/16 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.01 #VALUE!
1 1/4 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
Physicist: Patrick J. Byrne
Room Number: PET/CT 2 A-B004
Barrier: North Wall East Wall South Wall West Wall West Wall Ceiling Floor
Description: Exterior Control Room Corridor Equip Rm Uptake Rm 0 On grade
Concrete Thickness (inches) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
0.5 6.33 34.66 22.46 7.20 4.13 #VALUE! 60.13 #VALUE!
1.0 3.53 19.31 12.51 4.01 2.30 #VALUE! 33.50 #VALUE!
1.5 2.03 11.10 7.19 2.30 1.32 #VALUE! 19.25 #VALUE!
2.0 1.19 6.51 4.22 1.35 0.77 #VALUE! 11.29 #VALUE!
2.5 0.71 3.87 2.51 0.80 0.46 #VALUE! 6.71 #VALUE!
3.0 0.42 2.32 1.51 0.48 0.28 #VALUE! 4.03 #VALUE!
3.5 0.26 1.40 0.91 0.29 0.17 #VALUE! 2.44 #VALUE!
4.0 0.16 0.85 0.55 0.18 0.10 #VALUE! 1.48 #VALUE!
4.5 0.09 0.52 0.34 0.11 0.06 #VALUE! 0.90 #VALUE!
5.0 0.06 0.32 0.21 0.07 0.04 #VALUE! 0.55 #VALUE!
5.5 0.04 0.19 0.13 0.04 0.02 #VALUE! 0.34 #VALUE!
6.0 0.02 0.12 0.08 0.02 0.01 #VALUE! 0.21 #VALUE!
6.5 0.01 0.07 0.05 0.02 0.01 #VALUE! 0.13 #VALUE!
7.0 0.01 0.04 0.03 0.01 0.01 #VALUE! 0.08 #VALUE!
7.5 0.01 0.03 0.02 0.01 0.00 #VALUE! 0.05 #VALUE!
8.0 0.00 0.02 0.01 0.00 0.00 #VALUE! 0.03 #VALUE!
9.0 0.00 0.01 0.00 0.00 0.00 #VALUE! 0.01 #VALUE!
9.5 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.01 #VALUE!
10.0 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
10.5 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
11.0 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
11.5 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
12.0 0.00 0.00 0.00 0.00 0.00 #VALUE! 0.00 #VALUE!
PET F-18 UPTAKE ROOM CALCULATIONS Administered Activity (Ao) Decay Reduction
(mCi) Factor (Rtu)
Enter 12.0 0.832
Facility: Roudebush VA Medical Center
Uptake Time (Tu) Patient Dose Rate
Date: 7/20/2020 (min) uSv-m2/MBq-h
Enter 60 0.092
Physicist: Patrick J. Byrne
Studies per Week (Nw)
Room Number: Uptake Room A-B002 Enter 25
Equation #3 AAPM TG 108
Weekly Dose = 0.092 uSv m2 / MBq-h x ((Nw x Ao(MBq) x Tu(h) x Rtu) / d(m)2) x T)
Equation #4 AAPM TG 108
Transmission Factor (B) = 10.9 x P x d(m)2 / (T x Nw x Ao(MBq) x Tu(h) x Rtu]
Barrier: North Wall East Wall South Wall South Door West Wall West Wall Ceiling Floor
Description: Exterior Up Rm A-B003 Corridor Corridor Storage Office On Grade
Occupancy Factor (T) 0.050 0.200 0.200 0.125 0.050 1.000 1.000
Annual Limit (mSv) (P) 1 5 5 5 1 1 1
Distance (inches) 55.00 108.00 144.00 144.00 48.00 170.00 164.00
Distance (m) 1.40 2.74 3.66 3.66 1.22 4.32 4.17 uSv per week 21.78 22.59 12.71 7.94 28.59 45.59 48.99
Equation #3 TG-108
B Transmission Factor 0.92 4.44 7.89 12.63 0.70 0.44 0.41
Equation #4 TG-108
Pb Thickness (mm) 0.72 0 0 0 2.88 6.19 6.68
Concrete Thickness (cm) 1.77 0.00 0.00 0.00 5.30 9.27 9.80
Pb Thickness (in) 0.03 0.00 0.00 0.00 0.11 0.24 0.26
Concrete Thickness (in) 0.70 0.00 0.00 0.00 2.09 3.65 3.86
Facility: Roudebush VA Medical Center Uptake Room Page Two
Physicist: Patrick J. Byrne
Room Number: Uptake Room A-B002
Barrier: North Wall East Wall South Wall South Door West Wall West Wall Ceiling Floor
Description: Exterior Up Rm A-B003 Corridor Corridor Storage Office 0 On Grade
Pb Thickness (mm) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
0 1.09 1.13 0.64 0.40 1.43 2.28 2.45
1 0.97 1.01 0.57 0.35 1.27 2.03 2.18
2 0.86 0.89 0.50 0.31 1.13 1.79 1.93
3 0.75 0.78 0.44 0.27 0.99 1.57 1.69
4 0.66 0.68 0.38 0.24 0.86 1.37 1.47
5 0.57 0.59 0.33 0.21 0.75 1.19 1.28
6 0.49 0.51 0.29 0.18 0.65 1.03 1.11
7 0.42 0.44 0.25 0.15 0.56 0.89 0.96
8 0.37 0.38 0.21 0.13 0.48 0.77 0.82
9 0.31 0.33 0.18 0.11 0.41 0.66 0.71
10 0.27 0.28 0.16 0.10 0.36 0.57 0.61
12 0.20 0.21 0.12 0.07 0.26 0.42 0.45
14 0.15 0.15 0.09 0.05 0.19 0.31 0.33
16 0.11 0.11 0.06 0.04 0.14 0.23 0.24
18 0.08 0.08 0.05 0.03 0.10 0.17 0.18
20 0.06 0.06 0.03 0.02 0.08 0.12 0.13
25 0.03 0.03 0.02 0.01 0.04 0.06 0.06
30 0.01 0.01 0.01 0.00 0.02 0.03 0.03
40 0.00 0.00 0.00 0.00 0.00 0.01 0.01
50 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Concrete Thickness (cm) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
0 1.09 1.13 0.64 0.40 1.43 2.28 2.45
1 1.04 1.08 0.61 0.38 1.37 2.18 2.35
2 0.99 1.03 0.58 0.36 1.30 2.07 2.23
3 0.93 0.96 0.54 0.34 1.22 1.94 2.09
4 0.86 0.89 0.50 0.31 1.13 1.80 1.93
5 0.79 0.82 0.46 0.29 1.03 1.65 1.77
6 0.71 0.74 0.41 0.26 0.93 1.49 1.60
7 0.64 0.66 0.37 0.23 0.84 1.33 1.43
8 0.56 0.59 0.33 0.21 0.74 1.18 1.27
9 0.50 0.51 0.29 0.18 0.65 1.04 1.12
10 0.43 0.45 0.25 0.16 0.57 0.91 0.98
12 0.33 0.34 0.19 0.12 0.43 0.69 0.74
14 0.24 0.25 0.14 0.09 0.32 0.51 0.55
16 0.18 0.19 0.11 0.07 0.24 0.38 0.41
18 0.13 0.14 0.08 0.05 0.18 0.28 0.30
20 0.10 0.10 0.06 0.04 0.13 0.21 0.22
25 0.05 0.05 0.03 0.02 0.06 0.10 0.10
30 0.02 0.02 0.01 0.01 0.03 0.04 0.05
40 0.00 0.00 0.00 0.00 0.01 0.01 0.01
50 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Facility: Roudebush VA Medical Center Uptake Room Page Three
Physicist: Patrick J. Byrne
Room Number: Uptake Room A-B002
Barrier: North Wall East Wall South Wall South Door West Wall West Wall Ceiling Floor
Description: Exterior Up Rm A-B003 Corridor Corridor Storage Office 0 On Grade
Pb Thickness (inches) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
1/32 0.99 1.03 0.58 0.36 1.31 2.08 2.24
1/16 0.90 0.94 0.53 0.33 1.19 1.89 2.03
3/32 0.82 0.85 0.48 0.30 1.07 1.71 1.84
1/8 0.73 0.76 0.43 0.27 0.96 1.54 1.65
3/16 0.59 0.61 0.34 0.21 0.77 1.23 1.32
1/4 0.47 0.49 0.27 0.17 0.61 0.98 1.05
5/16 0.37 0.38 0.22 0.13 0.49 0.77 0.83
3/8 0.29 0.30 0.17 0.11 0.38 0.61 0.65
7/16 0.23 0.24 0.13 0.08 0.30 0.48 0.51
1/2 0.18 0.19 0.10 0.07 0.24 0.37 0.40
5/8 0.11 0.11 0.06 0.04 0.14 0.23 0.25
3/4 0.07 0.07 0.04 0.02 0.09 0.14 0.15
7/8 0.04 0.04 0.02 0.02 0.05 0.09 0.09
1 0.03 0.03 0.01 0.01 0.03 0.05 0.06
1 1/32 0.02 0.02 0.01 0.01 0.03 0.05 0.05
1 1/16 0.02 0.02 0.01 0.01 0.03 0.04 0.04
1 3/32 0.02 0.02 0.01 0.01 0.02 0.04 0.04
1 1/8 0.02 0.02 0.01 0.01 0.02 0.03 0.03
1 3/16 0.01 0.01 0.01 0.00 0.02 0.03 0.03
1 1/4 0.01 0.01 0.01 0.00 0.01 0.02 0.02
Concrete Thickness (inches) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
0.5 1.03 1.07 0.60 0.38 1.35 2.16 2.32
1.0 0.96 0.99 0.56 0.35 1.26 2.00 2.15
1.5 0.87 0.91 0.51 0.32 1.15 1.83 1.96
2.0 0.78 0.81 0.46 0.28 1.02 1.63 1.75
2.5 0.68 0.71 0.40 0.25 0.90 1.43 1.54
3.0 0.59 0.61 0.34 0.22 0.78 1.24 1.33
3.5 0.50 0.52 0.29 0.18 0.66 1.05 1.13
4.0 0.42 0.44 0.25 0.15 0.56 0.89 0.96
4.5 0.36 0.37 0.21 0.13 0.47 0.74 0.80
5.0 0.30 0.31 0.17 0.11 0.39 0.62 0.67
5.5 0.25 0.25 0.14 0.09 0.32 0.51 0.55
6.0 0.20 0.21 0.12 0.07 0.27 0.42 0.46
6.5 0.17 0.17 0.10 0.06 0.22 0.35 0.38
7.0 0.14 0.14 0.08 0.05 0.18 0.29 0.31
7.5 0.11 0.12 0.07 0.04 0.15 0.24 0.26
8.0 0.09 0.10 0.05 0.03 0.12 0.20 0.21
8.5 0.08 0.08 0.04 0.03 0.10 0.16 0.17
9.0 0.06 0.07 0.04 0.02 0.08 0.13 0.14
9.5 0.05 0.05 0.03 0.02 0.07 0.11 0.12
10.0 0.04 0.04 0.03 0.02 0.06 0.09 0.10
10.5 0.04 0.04 0.02 0.01 0.05 0.07 0.08
11.0 0.03 0.03 0.02 0.01 0.04 0.06 0.07PET-CT2 Shielding.xlsm
Enter 12.0 0.832
Facility: Roudebush VA Medical Center
Uptake Time (Tu) Patient Dose Rate
Date: 7/20/2020 (min) uSv-m2/MBq-h
Enter 60 0.092
Physicist: Patrick J. Byrne
Studies per Week (Nw)
Room Number: Uptake Room A-B003 Enter 25
Equation #3 AAPM TG 108
Weekly Dose = 0.092 uSv m2 / MBq-h x ((Nw x Ao(MBq) x Tu(h) x Rtu) / d(m)2) x T)
Equation #4 AAPM TG 108
Transmission Factor (B) = 10.9 x P x d(m)2 / (T x Nw x Ao(MBq) x Tu(h) x Rtu]
Barrier: North Wall West Wall South Wall South Door East Wall East Wall Ceiling Floor
Description: Exterior Up Rm A-B002 Corridor Corridor Equip Rm Scan Room On Grade
Occupancy Factor (T) 0.050 0.200 0.200 0.125 0.050 0.200 1.000
Annual Limit (mSv) (P) 1 5 5 5 5 5 1
Distance (inches) 55.00 100.00 144.00 144.00 48.00 132.00 164.00
Distance (m) 1.40 2.54 3.66 3.66 1.22 3.35 4.17 uSv per week 21.78 26.35 12.71 7.94 28.59 15.12 48.99
Equation #3 TG-108
B Transmission Factor 0.92 3.81 7.89 12.63 3.51 6.63 0.41
Equation #4 TG-108
Pb Thickness (mm) 0.72 0 0 0 0 0 6.68
Concrete Thickness (cm) 1.77 0.00 0.00 0.00 0.00 0.00 9.80
Pb Thickness (in) 0.03 0.00 0.00 0.00 0.00 0.00 0.26
Concrete Thickness (in) 0.70 0.00 0.00 0.00 0.00 0.00 3.86
UptakeA-B002.xlsm
Physicist: Patrick J. Byrne
Room Number: Uptake Room A-B003
Barrier: North Wall West Wall South Wall South Door East Wall East Wall Ceiling Floor
Description: Exterior Up Rm A-B002 Corridor Corridor Equip Rm Scan Room 0 On Grade
Pb Thickness (mm) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
0 1.09 1.32 0.64 0.40 1.43 0.76 2.45
1 0.97 1.17 0.57 0.35 1.27 0.67 2.18
2 0.86 1.04 0.50 0.31 1.13 0.60 1.93
3 0.75 0.91 0.44 0.27 0.99 0.52 1.69
4 0.66 0.79 0.38 0.24 0.86 0.46 1.47
5 0.57 0.69 0.33 0.21 0.75 0.40 1.28
6 0.49 0.60 0.29 0.18 0.65 0.34 1.11
7 0.42 0.51 0.25 0.15 0.56 0.30 0.96
8 0.37 0.44 0.21 0.13 0.48 0.25 0.82
9 0.31 0.38 0.18 0.11 0.41 0.22 0.71
10 0.27 0.33 0.16 0.10 0.36 0.19 0.61
12 0.20 0.24 0.12 0.07 0.26 0.14 0.45
14 0.15 0.18 0.09 0.05 0.19 0.10 0.33
16 0.11 0.13 0.06 0.04 0.14 0.07 0.24
18 0.08 0.10 0.05 0.03 0.10 0.06 0.18
20 0.06 0.07 0.03 0.02 0.08 0.04 0.13
25 0.03 0.03 0.02 0.01 0.04 0.02 0.06
30 0.01 0.02 0.01 0.00 0.02 0.01 0.03
40 0.00 0.00 0.00 0.00 0.00 0.00 0.01
50 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Concrete Thickness (cm) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
0 1.09 1.32 0.64 0.40 1.43 0.76 2.45
1 1.04 1.26 0.61 0.38 1.37 0.72 2.35
2 0.99 1.20 0.58 0.36 1.30 0.69 2.23
3 0.93 1.12 0.54 0.34 1.22 0.64 2.09
4 0.86 1.04 0.50 0.31 1.13 0.60 1.93
5 0.79 0.95 0.46 0.29 1.03 0.55 1.77
6 0.71 0.86 0.41 0.26 0.93 0.49 1.60
7 0.64 0.77 0.37 0.23 0.84 0.44 1.43
8 0.56 0.68 0.33 0.21 0.74 0.39 1.27
9 0.50 0.60 0.29 0.18 0.65 0.34 1.12
10 0.43 0.53 0.25 0.16 0.57 0.30 0.98
12 0.33 0.40 0.19 0.12 0.43 0.23 0.74
14 0.24 0.30 0.14 0.09 0.32 0.17 0.55
16 0.18 0.22 0.11 0.07 0.24 0.13 0.41
18 0.13 0.16 0.08 0.05 0.18 0.09 0.30
20 0.10 0.12 0.06 0.04 0.13 0.07 0.22
25 0.05 0.06 0.03 0.02 0.06 0.03 0.10
30 0.02 0.03 0.01 0.01 0.03 0.01 0.05
40 0.00 0.01 0.00 0.00 0.01 0.00 0.01
50 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Physicist: Patrick J. Byrne
Room Number: Uptake Room A-B003
Barrier: North Wall West Wall South Wall South Door East Wall East Wall Ceiling Floor
Description: Exterior Up Rm A-B002 Corridor Corridor Equip Rm Scan Room 0 On Grade
Pb Thickness (inches) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
1/32 0.99 1.20 0.58 0.36 1.31 0.69 2.24
1/16 0.90 1.09 0.53 0.33 1.19 0.63 2.03
3/32 0.82 0.99 0.48 0.30 1.07 0.57 1.84
1/8 0.73 0.89 0.43 0.27 0.96 0.51 1.65
3/16 0.59 0.71 0.34 0.21 0.77 0.41 1.32
1/4 0.47 0.57 0.27 0.17 0.61 0.32 1.05
5/16 0.37 0.45 0.22 0.13 0.49 0.26 0.83
3/8 0.29 0.35 0.17 0.11 0.38 0.20 0.65
7/16 0.23 0.28 0.13 0.08 0.30 0.16 0.51
1/2 0.18 0.22 0.10 0.07 0.24 0.12 0.40
5/8 0.11 0.13 0.06 0.04 0.14 0.08 0.25
3/4 0.07 0.08 0.04 0.02 0.09 0.05 0.15
7/8 0.04 0.05 0.02 0.02 0.05 0.03 0.09
1 0.03 0.03 0.01 0.01 0.03 0.02 0.06
1 1/32 0.02 0.03 0.01 0.01 0.03 0.02 0.05
1 1/16 0.02 0.02 0.01 0.01 0.03 0.01 0.04
1 3/32 0.02 0.02 0.01 0.01 0.02 0.01 0.04
1 1/8 0.02 0.02 0.01 0.01 0.02 0.01 0.03
1 3/16 0.01 0.01 0.01 0.00 0.02 0.01 0.03
1 1/4 0.01 0.01 0.01 0.00 0.01 0.01 0.02
Concrete Thickness (inches) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
0.5 1.03 1.25 0.60 0.38 1.35 0.72 2.32
1.0 0.96 1.16 0.56 0.35 1.26 0.66 2.15
1.5 0.87 1.06 0.51 0.32 1.15 0.61 1.96
2.0 0.78 0.94 0.46 0.28 1.02 0.54 1.75
2.5 0.68 0.83 0.40 0.25 0.90 0.48 1.54
3.0 0.59 0.72 0.34 0.22 0.78 0.41 1.33
3.5 0.50 0.61 0.29 0.18 0.66 0.35 1.13
4.0 0.42 0.51 0.25 0.15 0.56 0.29 0.96
4.5 0.36 0.43 0.21 0.13 0.47 0.25 0.80
5.0 0.30 0.36 0.17 0.11 0.39 0.21 0.67
5.5 0.25 0.30 0.14 0.09 0.32 0.17 0.55
6.0 0.20 0.25 0.12 0.07 0.27 0.14 0.46
6.5 0.17 0.20 0.10 0.06 0.22 0.12 0.38
7.0 0.14 0.17 0.08 0.05 0.18 0.10 0.31
7.5 0.11 0.14 0.07 0.04 0.15 0.08 0.26
8.0 0.09 0.11 0.05 0.03 0.12 0.07 0.21
8.5 0.08 0.09 0.04 0.03 0.10 0.05 0.17
9.0 0.06 0.08 0.04 0.02 0.08 0.04 0.14
9.5 0.05 0.06 0.03 0.02 0.07 0.04 0.12
10.0 0.04 0.05 0.03 0.02 0.06 0.03 0.10
10.5 0.04 0.04 0.02 0.01 0.05 0.02 0.08
11.0 0.03 0.04 0.02 0.01 0.04 0.02 0.07 UptakeA-B002.xlsm
Enter 12.0 0.832
Facility: Roudebush VA Medical Center
Uptake Time (Tu) Patient Dose Rate
Date: 7/20/2020 (min) uSv-m2/MBq-h
Enter 60 0.092
Physicist: Patrick J. Byrne
Studies per Week (Nw)
Room Number: Uptake Room A-B008 Enter 25
Equation #3 AAPM TG 108
Weekly Dose = 0.092 uSv m2 / MBq-h x ((Nw x Ao(MBq) x Tu(h) x Rtu) / d(m)2) x T)
Equation #4 AAPM TG 108
Transmission Factor (B) = 10.9 x P x d(m)2 / (T x Nw x Ao(MBq) x Tu(h) x Rtu]
Barrier: North Wall East Wall West Wall West Door South Wall Ceiling
Description: Hot Lab Exterior Corridor Corridor Up Rm A-B009
Occupancy Factor (T) 0.200 0.050 0.200 0.200 0.200 1.000
Annual Limit (mSv) (P) 5 1 5 5 5 1
Distance (inches) 55.00 77.00 96.00 96.00 60.00 164.00
Distance (m) 1.40 1.96 2.44 2.44 1.52 4.17 uSv per week 87.11 11.11 28.59 28.59 73.20 48.99
Equation #3 TG-108
B Transmission Factor 1.15 1.80 3.51 3.51 1.37 0.41
Equation #4 TG-108
Pb Thickness (mm) 0 0 0 0 0 6.68
Concrete Thickness (cm) 0.00 0.00 0.00 0.00 0.00 9.80
Pb Thickness (in) 0.00 0.00 0.00 0.00 0.00 0.26
Concrete Thickness (in) 0.00 0.00 0.00 0.00 0.00 3.86
UptakeA-B008.xlsm
Physicist: Patrick J. Byrne
Room Number: Uptake Room A-B008
Barrier: North Wall East Wall West Wall West Door South Wall 0 0 Ceiling
Description: Hot Lab Exterior Corridor Corridor Up Rm A-B009 0 0 0
Pb Thickness (mm) mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year mSv / year
0 4.36 0.56 1.43 1.43 3.66 2.45
1 3.88 0.50 1.27 1.27 3.26 2.18
2 3.43 0.44 1.13 1.13 2.88 1.93
3 3.01 0.38 0.99 0.99 2.53 1.69
4 2.62 0.33 0.86 0.86 2.20 1.47
5 2.28 0.29 0.75 0.75 1.91 1.28
6 1.97 0.25 0.65 0.65 1.66 1.11
7 1.70 0.22 0.56 0.56 1.43 0.96
8 1.46 0.19 0.48 0.48 1.23 0.82
9 1.26 0.16 0.41 0.41 1.06 0.71
10 1.08 0.14 0.36 0.36 0.91 0.61
12 0.80 0.10 0.26 0.26 0.67 0.45
14 0.59 0.07 0.19 0.19 0.49 0.33
16 0.43 0.06 0.14 0.14 0.36 0.24
18 0.32 0.04 0.10 0.10 0.27 0.18
20 0.23 0.03 0.08 0.08 0.20 0.13
25 0.11 0.01 0.04 0.04 0.09 0.06
30 0.05 0.01 0.02 0.02…
This is the start of the file's text. The full file is on GovTribe.
File details come from the government source that posted it. Updated .