Application Of The ASME Boiler And Pressure Vessel Code In The Design Of SSR Cryomodule Beamlines For PIP-II Project At Fermilab

TL;DR

This paper details the design, testing, and qualification of key components, including edge-welded bellows, for SSR Cryomodule beamlines in Fermilab's PIP-II project, ensuring compliance with ASME standards for high vacuum and cryogenic conditions.

Contribution

It introduces a novel application of ASME Boiler and Pressure Vessel Code to the design and qualification of cryomodule components for particle accelerator beamlines.

Findings

Successful design and testing of edge-welded bellows for cryogenic environments.

Qualification of bellows for high vacuum and cleanroom assembly.

Magnetic characterization confirming suitability for accelerator applications.

Abstract

This contribution reports the design of the main components used to interconnect SRF cavities and superconducting focusing lenses in the SSR Cryomodule beamlines, developed in the framework of the PIP-II project at Fermilab. The focus of the present contribution is on the design and testing of the edge-welded bellows according to ASME Boiler and Pressure Vessel Code. The activities performed to qualify the bellows to be assembled in cleanroom, for operation in high vacuum, cryogenic environments, and their characterization from magnetic standpoint, will also be presented.