Exhibit A Waveguide Statement of Work.pdf

Statement of Work

Fermi National Accelerator Laboratory 1

WR1150 236.2” Waveguide Statement of Work Preparation Date: 9/4/2025

Date:

Preparing Organization: HPRF, PIP-II, FNAL

Document Approval Signatures Required Date Approved

Originator: Victor Grzelak As in Teamcenter

Reviewer: James Steimel

Reviewer: Thomas DiGrazia

Reviewer: Jeremy Nudell

Approver: Jeremiah Holzbauer

Fermi National Accelerator Laboratory 2

1. INTRODUCTION

Fermi National Accelerator Laboratory (FNAL) is building a new linear accelerator (linac) to improve its capabilities for high energy particle physics research. The linac will accelerate ionized protons using superconducting, resonant cavities distributed throughout an underground tunnel. The cavities are tuned to three frequencies: 162.5 MHz, 325 MHz, and 650 MHz. Figure 1 shows an illustration of the full linac and a blown-up image of the different modules that contain the cavities. This procurement pertains only the 650MHz section.

Figure 1 - Shows the arrangement of the different styles of cavities in the beamline. There are 72 cavities in the 650MHz section

Each cavity receives its power from a dedicated RF amplifier through its own distribution system. The 650MHz distribution system consists of WR1150 waveguide, flexible sections, directional couplers, circulators, gas seals, gas ports and gas barriers. Figure 2 shows illustrations of how the RF amplifiers connect to the LB650 cavities and their waveguide components.

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Figure 2: Simple RF distribution system

The distribution system starts upstairs in the gallery, then runs underground into the RF trench, then runs through a horizontal penetration to the tunnel, shown in Figure 3. The horizontal penetration is a galvanized steel, humidity-controlled enclosure that is buried underground between the RF trench and the tunnel.

Figure 3: Arrangement of the Gallery, RF Trench and Tunnel. Note everything below the gallery floor is below grade.

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2. SCOPE AND DELIVERABLES

The scope of this procurement is for the 72 sections of WR1150 waveguide that fill the horizontal penetrations. Figure 4 shows an example.

To span the distance and allow for access to the exterior flanges, each WR1150 line will be 236.2” in length.

This will be composed of 2 straight sections and one removable gasket. Figure 5 shows the dimensions of the line.

Figure 5a. Dimensions in inches

Figure 4: Horizontal penetration between RF trench and tunnel

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Figure 5b. Dimensions in inches

Table 1 provides a list of the contract deliverables.

Table 1: List of Contract Deliverables

Item Quantity

CPRF WR1150 120” section 72

CPRF WR1150 116.1” section 72

CPRF WR1150 0.125” thick gasket 72

Document 1 – Certificate of conformance NA

Document 2 – Material certifications for WR1150 NA

3. BID REQUIREMENTS

Schedule and cost for all bids shall include an itemized list according to the first three items listed in Table

1. FNAL reserves the right to accept a bid for any combination of discreet bids for the first three items.

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4. REQUIREMENTS/SPECIFICATIONS

WR1150 waveguide- totaling 236.2” constructed of two waveguide pieces and a gasket.

• Operating frequency: 650MHz +/- 5MHz

• Power handling: 70kW CW up to full reflection at any phase angle

• Flanges o CPRF WR1150 o 0.625” Thickness o Must adhere to standard EIA-271-B

• Wall thickness o 0.25”

• Gas seal o Gas seal must be adequate for a low radiation environment o Gas seals must be 0.125” in compressed width

• Pressurization: Up to 2psig internal pressure o Combination of pieces must be gas tight.

o Subcontractor will provide pressure test results for each item with shipment.

• Material o Aluminum, please provide alloy information with bid

• Finish o RoHS compliant chemical conversion

• Length o The total length assembled length should be 236.2” o No section shall exceed 120”

• Maximum Transverse Extents o Width < 17.5” o Height < 11.5”

All waveguide lines shall be labelled with a serial number and their measured length in inches.

Lengths shall be measured to within ±0.1”.

5. QUALITY REQUIREMENTS

A quality control plan and a manufacturing inspection plan shall be finalized and provided to FNAL prior to starting production.

Conformance documents, dimensions, and gas pressure will be verified within 2 weeks of delivery at Fermilab. After this 2-week window, the product will be accepted sans issues.

Jeremy Nudell Lengths shall be measured to within +-0.1"

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6. SCHEDULE

Delivery is expected within 20 weeks after the purchase order has been issued. If only partial delivery is available at 20 weeks, please provide a delivery schedule for a phased delivery.

Subcontractor should initiate a kickoff meeting within 2 weeks after the contract award to review requirements and confirm the intended schedule.

7. SHIPPING

All items shall be packaged to protect them from shipping and weather damage.

A certificate of conformance validating requirements, including measurements of all specified lengths should be sent to FNAL before shipment.

All packages shall be clearly marked with contents. Packing list should include the serial number, component name, length, quantity and total package weight. Each item shall be individually labelled with measured length.

8. WARRANTY

Contract deliverables shall be free of manufacturing defects for a period of 12 months after component delivery.