PIP-II SSR2 Cavities Fabrication and Processing Experience

TL;DR

This paper discusses the fabrication, processing, and testing of SSR2 cavities for the PIP-II linac, highlighting improvements made after initial unit completion to enhance performance and reliability.

Contribution

It provides detailed data and insights on SSR2 cavity fabrication and processing, including improvements implemented after initial testing phases.

Findings

Successful fabrication of multiple SSR2 cavities

Implementation of process improvements after first unit

Preparation of cavities for cold testing

Abstract

The Proton Improvement Plan-II (PIP-II [1]) linac will include 35 Single Spoke Resonators type 2 (SSR2). A preproduction SSR2 cryomodule will contain 5 jacketed cavities. Several units are already manufactured and prepared for cold testing. In this work, data collected from the fabrication, processing and preparation of the cavities will be presented and the improvements implemented after the completion of the first unit will be highlighted.