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Title: Investigations on Absorber Materials at Cryogenic Temperatures

Abstract

In the framework of the 12 GeV upgrade project for the Continuous Electron Beam Accelerator Facility (CEBAF) improvements are being made to refurbish cryomodules housing Thomas Jefferson National Accelerator Facility's (JLab) original 5-cell cavities. Recently we have started to look into a possible simplification of the existing Higher Order Mode (HOM) absorber design combined with the aim to find alternative material candidates. The absorbers are implemented in two HOM-waveguides immersed in the helium bath and operate at 2 K temperature. We have built a cryogenic setup to perform measurements on sample load materials to investigate their lossy characteristics and variations from room temperature down to 2 K. Initial results are presented in this paper.

Authors:
; ;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1021853
Report Number(s):
JLAB-ACC-09-977; DOE/OR/23177-0734
TRN: US1104069
DOE Contract Number:  
AC05-06OR23177
Resource Type:
Conference
Resource Relation:
Conference: PAC09, 4-8 May 2009, Vancouver, BC, Canada
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; CAVITIES; CRYOGENICS; DESIGN; ELECTRON BEAMS; HELIUM

Citation Formats

Marhauser, Frank, Elliott, Thomas, and Rimmer, Robert. Investigations on Absorber Materials at Cryogenic Temperatures. United States: N. p., 2009. Web.
Marhauser, Frank, Elliott, Thomas, & Rimmer, Robert. Investigations on Absorber Materials at Cryogenic Temperatures. United States.
Marhauser, Frank, Elliott, Thomas, and Rimmer, Robert. Fri . "Investigations on Absorber Materials at Cryogenic Temperatures". United States. https://www.osti.gov/servlets/purl/1021853.
@article{osti_1021853,
title = {Investigations on Absorber Materials at Cryogenic Temperatures},
author = {Marhauser, Frank and Elliott, Thomas and Rimmer, Robert},
abstractNote = {In the framework of the 12 GeV upgrade project for the Continuous Electron Beam Accelerator Facility (CEBAF) improvements are being made to refurbish cryomodules housing Thomas Jefferson National Accelerator Facility's (JLab) original 5-cell cavities. Recently we have started to look into a possible simplification of the existing Higher Order Mode (HOM) absorber design combined with the aim to find alternative material candidates. The absorbers are implemented in two HOM-waveguides immersed in the helium bath and operate at 2 K temperature. We have built a cryogenic setup to perform measurements on sample load materials to investigate their lossy characteristics and variations from room temperature down to 2 K. Initial results are presented in this paper.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri May 01 00:00:00 EDT 2009},
month = {Fri May 01 00:00:00 EDT 2009}
}

Conference:
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