Exhibit B- HB650 Vacuum vessel re-work specifications.pdf

PIP-II is a partnership of:

US-DOE

India-DAE Italy-INFN

UK-STFC-UKRI

France-CEA, CNRS/IN2P3 Poland-WUST, WUT, TUL

HB650 vacuum vessel rework for PIP-II V. Roger, J. Bernardini (technical team) M. Reynolds (procurement team)

Introduction

PIP-II Capabilities Beam Power

• 1.2 MW proton beam

• Upgradeable to multi-MW

Flexibility, multi-user capability

• CW-compatible

• Customized beams

• Multi-user delivery

Reliability

• Modernizes Fermilab accel complex

PIP-II Mission PIP-II is an essential upgrade to Fermilab accelerator complex to enable the world’s most intense beam of neutrinos to LBNF/DUNE, and a broad physics research program for decades to come.

PIP-II Scope 800 MeV H− SRF linac

CW RF Operations Linac-to-Booster transfer line Accelerator Complex Upgrades

Booster Recycler Main Injector

Conventional Facilities Space reserved for two CMs for 1 GeV Upgrade

The PIP-II scope enables the accelerator complex to reach 1.2 MW proton beam on LBNF target

A. Martinez, D. Passarelli | 10.24.2023 | P2MAC4

Cryoplant 2.5kW @ 2K

CDS

HWR

162.5 MHz

Single Spoke 1 SSR1 x (1 + 2) 325 MHz

Elliptical HB650 x (1 + 4) 650 MHz

Single Spoke 2 SSR2 x (1 + 7) 325 MHz

Elliptical LB650 x (1 + 9) 650 MHz

650 Systems Scope

• Scope : from design to delivery of qualified 650 MHz

CMs up to Linac Installation.

• Partners provide :

– 3 completed HB650 CMs and 1 CM kit (UKRI)

– 1 set of components for HB650 CM (DAE)

– 1 + 9 completed and 2K tested LB CMs (INFN/CEA)

Several years ago, a prototype HB650 cryomodule was assembled and tested at Fermilab. This prototype cryomodule has been disassembled and we are planning to reuse some of the components for the assembly of one production cryomodule.

Introduction

4/25/20255

Several years ago, a prototype vacuum vessel was procured and manufactured according to drawing package F10148048 Rev H.

From prototype to production, the design of the vacuum vessel has been changed.

We are now looking for a manufacturer to update by physically modifying certain parts of this existing prototype vessel to make it compatible with the production units:

drawing package F10196098 Rev D.

Introduction

4/25/20256

• Length: 9,572 mm

• Diameter: 1,350 mm

• Weight: ~ 18,800 lbs

Components affected by changes

Components affected by changes

4/25/20258

Component Old ID# New ID# Qty Extension port F10134454 C F10196202 - 1

Coupler Supports brackets

F10064588 - F10064587 -

F10198011 - 6

Main vessel F10137478 K F10196099 D 1 Transportation interfaces F10129264 A F10196174 - 14

2K bayonet F10164701 A F10164701 A 1

• Weldments on the inside of the Extension port are different. These parts will need to be grinded in order to weld the new interface plates.

Extension port

4/25/20259

F10134454 C F10196202 -

• The supports need be grinded and replaced with the new supports. Then final machining will be needed.

Coupler supports

4/25/202510

F10064588 - F10064587 - F10198011 -

• ALL the plates welded on the inside of the vessel need be grinded and replaced with the new ones. Plates were welded using fillet welds as shown below.

Main vessel

4/25/202511

F10148048 Rev H F10196098 Rev D

• The clearance holes need to be increased from 20.0 +/- 0.3 mm to 26.0 +/- 0.3 mm.

Final machining is required to increase the hole’s diameters.

Transportation interfaces

4/25/202512

F10196174 -

• Final machining may be required if ID is below 107.0 mm.

2K bayonet

4/25/202513

F10164701 A

• The number and the location of the magnet nests are different in Prototype and Production vessels. New magnets need to be welded.

Magnet nests

4/25/202514

F10148048 H

F10196098 D

• On the prototype vessel there were no details in the model about the size of the display plate. It is necessary to grind the existing one and replaced it by the new one.

Display plate

4/25/202515

F10148048 H F10196098 D

F10195320 A

New required components

New required components

4/25/202517

Component ID# Qty Heat exchanger support F10203576 C 1

Metrology table holder

F10148601 A 4

Metrology adjustable tables

F10148039 D 4

Gate valve guard F10149343 - 2 Strongback supports F10191095 A 14

Top port F10196217 - 1 Magnet nests F10141778 C 10 Display plate F10195320 A 1

Contrary to the production vessel F10196098 Rev D, the prototype vessel does not include the HX support F10203576, the 4x metrology table holders F10148601, the 4x metrology adjustable tables F10148039 and the 2x gate valve guards F10149343: New procurements are needed.

New required components

4/25/202518

F10148048 H F10196098 D

• Prod CMs only have one pressure transducer line. Therefore, new parts (F10196207 + F10164171 + F10164175) will need to be procured. Also, hole pattern of the main plate is slightly different, adjustments may be needed.

Top port

4/25/202519

F10196217 -

• During the assembly of the prototype vessel we had difficulty to assemble the strongback supports on the vessel. Tolerances have been changed, hardware has been changed and tolerances on the studs were not tight enough which led to more measurements during the assembly process. We would like to procure 14x new supports F10191095 and make sure it fits on the vessel.

Strongback supports

4/25/202520

F10148048 H F10196098 D F10191095 A

Welding

4/25/202521

• All weld joints shall be performed using the following welding filler materials:

– Carbon steel to carbon steel: E70XX

– Stainless steel to stainless steel: ER308

– Carbon steel to stainless steel: ER309

• All welding process, inspection and documentation shall be performed and developed in accordance with related pressure vessel codes of ASME B&PV section VIII Division I, 2021. WPS, WPQ, and PQR must be provided. All welders shall be qualified to the ASME B&PV section IX, 2021.

• The Manufacturer shall ensure that no entrapped gases, fluxes, pits, cracks, or like imperfections are left in the heat affected zones. All fillet welds shall be smooth for cosmetic appearance.

• Post cleaning of welds with a wire brush only is acceptable (prior to final leak checking) and required to leave the surface in a bright finish condition with no trace of solvent residue. Final weld inspection must be performed to ensure that size and type of welds comply with prints.

• Vacuum level during leak check < 1 x 10-3 mbar

• Leak rate < 2 x 10-7 mbar x Liter / sec

Leak Check

4/25/202522

• Helium leak testing at room temperature shall be used to verify that assembly, subassemblies, and components (when specified on drawings) are suitably leak-tight at all stages of fabrication and assembly. The allowable leakage rates are indicated on drawings (when applicable). Leak testing should be performed with a calibrated Helium Mass Spectrometer Leak Detector (HMSLD), according to ISO 20485 or equivalent standard. Closures for the leak check will be provided.

• No painting (external or internal) is allowed before leak check is completed and approved.

• The completed Vacuum Vessel Assembly shall be made available to FFDG for inspection before, during, or after final leak checking (prior to painting). Advanced notice shall be provided to FFDG for travel arrangements.

• A final leak check shall be performed on the assembled vacuum vessel.

• After grinding the welds inside the vessel, sandblasting and painting with a rust preventative primer will be needed.

Internal Painting

4/25/202523

• After grinding the welds outside the vessel, welding new parts and performing final machining, sand blasting and painting is needed.

• Exterior to be painted with RAL9005 black jet and RAL3026 luminous bright red, refer to CAD model for components colors.

• Samples of the RAL3026 shall be provided and approved by FNAL before painting.

External Painting

4/25/202524

• A Hold Point is defined as the moment in time wherein the process needs to be stopped in order to allow a FNAL representative to perform reviews and QCs deemed necessary.

Hold Points

4/25/202525

Hold Point Description Deliverables When required

A Kick-off Meeting Address action items from the meeting Within 2 weeks of PO award

B Manufacturing Readiness Review(s) (MRR)

Welding documentation - Detailed MIP and Travelers’ template Within 8 weeks from FFDG PO award and before starting any Fabrication / Procurement

C Final Dimensional Check of the Vacuum Vessel QC report(s) As specified in the MIP

D Pre-painting Leak Check of the Vacuum Vessel

QC report(s) As specified in the MIP

E Painting Readiness Review Detailed plan describing which surfaces will be painted and which holes and surfaces will be masked off.

As specified in the MIP

F Final leak check of the vacuum vessel

QC report(s) As specified in the MIP

G Discrepancies / Nonconformities

Discrepancy report(s) As soon as identified

H Shipping Readiness Review

Shipping Plan - Final version of MIP

Final version of Welding documentation -Discrepancy report(s) (If applicable)

CMTRs - Visual Inspection Reports

Certificate of dimensional controls -Leak Checking report

Prior to shipping

Provided documentation and deliverables

• FNAL is providing:

– Drawing package for F10148048 H and F10196098 D in PDF format.

– 3D of F10148048 H and F10196098 D in .stp or .xt format.

• Bidders shall provide:

– Technical proposal to demonstrate the ability to deliver F10196908 D according to the requirements listed here and in the notes of the drawings. This includes the possibility of correcting eventual discrepancies (such as dimensional non conformances) between the provided model and drawings and the vacuum vessel as built.

– Past experience including examples of past projects (within the last five years) that closely match the scope in complexity and value, and that best illustrate the bidder’s capability, experience, and performance.

– Schedule that meets a tentative delivery date by December 2025.

– Price proposal to cover all costs and services required to cover the reported scope of work

• Including a separate option to handle shipment of the existing vacuum vessel from FNAL (Batavia, IL) to Bidder’s facilities and back.

4/25/202527

Provided documentation and deliverables