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Title: Assembly and commissioning of a new SRF cryomodule for the ATLAS intensity upgrade

The Argonne National Laboratory Physics Division is in the final stages of a major upgrade to the Argonne Tandem Linear Accelerator System national user facility, referred to as the intensity upgrade. The intensity upgrade project will substantially increase beam currents for experimenters working with the existing ATLAS stable and in-flight rare isotope beams and for the neutron-rich beams from the Californium Rare Isotope Breeder Upgrade. This project includes the replacement of three existing cryomodules, containing 18 superconducting accelerator cavities and 9 superconducting solenoids, with a single cryomodule with seven SC 72.75 MHz accelerator cavities optimized for ion velocities of 7.7% the speed of light and 4 SC solenoids all operating at 4.5 K. This presentation will report: how we minimized the heat load into the 4 K and 80 K coolant streams feeding the cryomodule, a comparison of the calculated and measured static heat loads at 80 K and the mechanical design of the vacuum vessel.
Authors:
; ; ; ; ; ; ; ; ; ; ; ; ;  [1] ;  [2]
  1. Argonne National Laboratory, 9700 S. Cass Ave., Argonne, IL, 60439 (United States)
  2. TechSource Inc., 1475 Central Ave., Suite 250, P.O. Box 988, los Alamos, NM 87544-0988 (United States)
Publication Date:
OSTI Identifier:
22263928
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1573; Journal Issue: 1; Conference: International cryogenic materials conference, Anchorage, AK (United States), 17-21 Jun 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; ATLAS SUPERCONDUCTING LINAC; CALIFORNIUM; CONTAINERS; COOLANTS; DESIGN; NEUTRONS; SOLENOIDS; SUPERCONDUCTING MAGNETS