RFI AA-2025-03.docx

REQUEST FOR INFORMATION – 21 COUPLED PS/PSS FOR X-RAY BEAMLINE

REQUEST FOR INFORMATION (RFI) INSTRUCTIONS

Project Magnitude: ~$2M Response due: June 20, 2025 Expected Delivery in 2026 to 2027 Intent: Information Gathering RFI No.: AA-2025-03

Please review all the detail provided to ensure you have a complete understanding of this RFI.

This is a Request for Information (RFI) announcement only. This is not a solicitation of proposals and no subcontract will be awarded from this Request. No reimbursement will be made for any costs associated with providing information in response to this Request or any follow-up information requests related to this RFI. No telephone calls will be accepted requesting a bid package or solicitation because there is no bid package or solicitation available. In order to protect the procurement integrity of any future procurement, if any, that may arise from this Request, information regarding the technical point of contact will not be given and no appointments for presentations will be made.

Responding to this RFI does not provide any advantage or disadvantage to potential offerors if LBNL chooses to issue a solicitation for the delivery of goods or services regarding the subject matter.

Proprietary Information: Because information received in response to this RFI may be used to structure future programs and may be made available to the public, respondents must NOT include any information in their responses that might be considered business sensitive, proprietary, or otherwise confidential. Responses must be submitted with the understanding that their contents may be publicly disclosed and, in the event of a public disclosure, LBNL will NOT notify respondents or provide any opportunity to revise or redact submitted information.

If your company believes it can provide Lawrence Berkeley National Lab (“Berkeley Lab” or “LBNL”) the goods or services described below, we encourage your company to:

· Complete this form electronically as comprehensively as possible ensuring that all details are typed out clearly, and return by June 20, 2025.

Submit this form and any attachments via email to the following address:

The main point of contact for this RFI is:

Arielle Anoop Procurement Specialist Lawrence Berkeley National Laboratory AAnoop@lbl.gov +1 (510) 486 5519

OVERVIEW & BACKGROUND

The Advanced Light Source (ALS) is a United States Department of Energy funded synchrotron facility that provides users from around the world access to the brightest beams of soft x-rays, together with hard x-rays and infrared, for scientific research and technology development in a wide range of disciplines.

Advanced Light Source Upgrade (ALS-U) is the project name for a planned upgrade of the ALS at Berkeley Lab that will endow the ALS with revolutionary x-ray capabilities. The upgraded ALS will occupy the same facility as the current ALS, replacing the existing electron storage ring and leveraging $500 million in existing ALS infrastructure and experimental systems.

One objective for ALS-U is to develop new or to upgrade existing beamlines (BL), in order to be compliant with ALS-U technical specifications and new radiation safety policies. Consequently, the following radiation safety components have to be upgraded:

· Personnel Safety Shutter (PSS): physically blocks Bremsstrahlung radiation when closed.

· Photon Shutter (PS): physically blocks the X-ray beam when closed

· Burn Through Monitor (BTM): safety component to ensure the PS works as expected; otherwise it triggers a signal to shut down the ALS beam.

Those moving components to be inserted into the beamline path through an actuator will also work under an ultra-high vacuum environment.

The ALS-U project is seeking a vendor to design and fabricate fully coupled PS/BTM/PSS assemblies for repeated use at twenty-one beamlines.

Figure 1 shows a design concept:

New exclusion zone

BTM

PS

PSS

Actuating rod Vacuum vessel Beam direction

Figure 1 – Shutter system concept illustrating the key components.

The system can be in two different positions:

· Retracted/up position (shown in Figure 2): the tungsten alloy block is lifted fully above the beam and above inlet and outlet flanges

Figure 2 – Retracted state of the shutter system concept.

· ‘PSS position’ (shown in Figure 3): The synchrotron radiation fan is intercepted by the PS. Positioned behind the PS is the PSS – a large tungsten block designed to block Bremsstrahlung radiation. Between the PS and the PSS, a BTM—which has yet to be designed—would be integrated. The BTM integration should be modular, allowing LBL the flexibility to decide whether to implement it.

Figure 3 – Inserted state of the shutter system concept.

SCOPE OF WORK

The purpose of this RFI is to evaluate the feasibility, workload, schedule, and cost of 21-coupled PS/BTM/PSS systems. The responses should include considerations of

1) Mechanical parts

2) Actuators

3) FEAs

4) Design and Fabrication Drawings

LBNL intends to collect technical information, a budgetary quotation, and a schedule estimate for the complete process, including design, fabrication, and delivery.

The primary specifications and requirements are as follows:

1) The longitudinal length of the shutter assembly (PS+BTM+PSS) should be less than 8.15 in (207.0 mm), upstream face to downstream face.

2) The PSS should be made of a tungsten alloy block (17.0 g/cc), of following external dimensions: width: 5.50 in, height: 3.75 in, length: 7.00 in (139.7 X 95.3 X 177.8 mm).

3) The BTM should be, for now, only a space reservation between the PS and the PSS, (yellow area in previous pictures) with the same footprint as the PS, and a thickness (longitudinal axis) of 0.65 in (16.5 mm). As LBNL is still developing a concept, its final characteristics are not yet defined. Nominally, this part will contain a small volume filled with gas (air or nitrogen) with a connection to the outside of the vessel.

4) The PS should be a normal incidence water-cooled copper plate, bolted in front of the PSS and BTM, in order to intercept light. Its design (with corresponding FEAs) should prove its ability to intercept a beamline heat flux over surfaces in steady state. The total heat per beamline is 200 W.

5) Figure 4 shows an estimate of the beam footprint on the PS, along with the overall dimensions listed previously.

Figure 4 – Overall dimensions of the shutter concept. The beam footprint is shown on the right.2 in wide X 1 in tall beam footprint

These values may be subject to change, but the order of magnitude will remain the same.

6) PS water-cooling parameters (such as water-flow) should be given by the subcontractor in order to achieve sufficient cooling efficiency.

7) The PS/PSS assembly should be inserted into the beamline path vertically. The total range of motion should not be less than 3.00 in (76.2mm).

8) The vertical motion is limited by adjustable mechanical hard stops and electrical switches. The switches should monitor the assembly displacement with an accuracy of less than 0.020 in (0.5 mm).

9) This vertical motion should be controlled by a pneumatic actuator, moving the vertical rod. The total weight of moving parts is expected to be less than 440 lbs (200 kg).

Only two positions are foreseen (no need to know the position between the two switches).

10) LBL will design the main vacuum vessel. The overall size of the LBL design vacuum chamber will give a minimum clearance of 0.125 in (3 mm) around each internal PS PSS component. It will reach a base pressure of 10-8 Pa (0.5 nTorr), and ambient pressure outside. The PS BTM PSS actuator assembly shall be designed by the vendor as fixed onto the center of a standard UHV 12 in fixed conflat flange.

Vendor designed PS BTM PSS actuator assembly on a 12 in standard conflate flange

Figure 5 – Shutter system concept shown with a 12 in UHV flange.

0.125 in (3 mm) minimum all around clearance provided LBL vacuum integrated assembly

Figure 6 - Shutter system concept situated inside a UHV chamber with clearance dimensions.

Company Information Form Section 1 – Company Information

In 300 words or less (For Each Question in this Section)

Yes No

Small Business 8(a) Small Disadvantaged Business Women-Owned Small Business HUB Zone Veteran-Owned Business Service Disabled Veteran-Owned

< 2 years 2-5 years 5-10 years >10 years

Section 4 – Business Activities

In 300 words or less (For Each Question in this Section)

Yes No If yes, describe these methods and tools.

Click here to enter text.

Section 5 – Technical Ability

In 300 words or less (For Each Question in this Section)

Describe your prior experience and expertise in supplying PS/PSS components to soft x-rays beamlines

Click here to enter text.

Click here to enter text.

Any other considerations or items LBNL should be aware of?

Click here to enter text.

List any attachments to the RFI including drawings, budgetary quotes, specifications documents, etc. (please do not attach sales literature or white papers unless requested by LBNL):

1.

2.

(Add lines as needed)

END RFI DOCUMENT

8 | Page image3.png image4.png image5.png image6.png image7.png image8.png image9.png image10.png image11.png image12.png image13.png image14.png image1.png image2.png image15.jpeg