JLab cryomodule assembly infrastructure modifications for LCLS-II

Conference · Tue Dec 01 00:00:00 EST 2015

OSTI ID:1645577

Daly, Edward F. ^[1]; Armstrong, J. ^[1]; Cheng, Gary ^[1]; Drury, Michael A. ^[1]; Fischer, John ^[1]; Forehand, Danny ^[1]; Harding, Keith ^[1]; Henry, James E. ^[1]; Macha, Kurt ^[1]; Preble, Joseph P. ^[1]; Reilly, Anthony V. ^[1]; Wilson, Katherine M. ^[1]

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1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

The Thomas Jefferson National Accelerator Facility is currently engaged, along with several other DOE national laboratories, in the Linac Coherent Light Source II project (LCLS II). The SRF Institute at Jefferson Lab will be building 1 prototype and 17 production cryomodules based on the TESLA / ILC / XFEL design. Each cryomodule will contain eight nine cell cavities with coaxial power couplers operating at 1.3 GHz. New and modified infrastructure and assembly tooling is required to construct cryomodules in accordance with LCLS-II requirements. The approach for modifying assembly infrastructure included evaluating the existing assembly infrastructure implemented at laboratories world-wide in support of ILC and XFEL production activities and considered compatibility with existing infrastructure at JLab employed for previous cryomodule production projects. These modifications include capabilities to test cavities, construct cavity strings in a class 10 cleanroom environment, assemble cavity strings into cryostats, and prepare cryomodules for cryogenic performance testing. This paper will give a detailed description of these modifications.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177; AC02-76SF00515
• OSTI ID: 1645577
• Report Number(s): JLAB-ACC-15-2209; DOE/OR/23177-3651
• Resource Relation: Conference: SRF2015, Whistler, BC, Canada, 13-18 September 2015
• Country of Publication: United States
• Language: English