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Title: Cryocooled cold trap system for the SuperCDMS dilution refrigerator

Abstract

Operating 6,800 feet underground at the SNOLAB facility in Sudbury, Ontario, Canada, the dilution refrigerator-cooled SuperCDMS SNOLAB (Super Cryogenic Dark Matter Search at the Sudbury Neutrino Observatory Laboratory) experiment has been designed for maximum cryogenic up-time and remote operations. A key element in achieving these goals is a pair cold traps in the helium circulation stream of the dilution refrigerator; the first operating near liquid nitrogen temperatures and the second operating near liquid helium temperatures. Previous experience with the CDMS experiment, located underground at the Soudan Under-ground Laboratory, has given significant operational experience with dilution refrigerator cold traps and has solidified the demand of a system of dual cold traps. Unlike the CDMS-era system, the new SuperCDMS system will feature a cryocooler powered liquid nitrogen re-liquefying system (as opposed to regular under-ground re-filling of cold trap dewars using portable nitrogen dewars) and a cryogen-free 4 K cold trap, which eliminates the need for a bath of liquid helium.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1]
  1. Fermilab
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
SUPER-CDMS-SNOLAB
OSTI Identifier:
1605576
Report Number(s):
FERMILAB-CONF-19-356-TD
oai:inspirehep.net:1786898
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: Cryogenic Engineering Conference & International Cryogenic Materials Conference (CEC-ICMC 2019), Hartford, Connecticut, 07/21-07/25/2019
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Tatkowski, G., Hollister, M., Dhuley, R., Ruschman, M., Bauer, D., and Lukens, P. Cryocooled cold trap system for the SuperCDMS dilution refrigerator. United States: N. p., 2020. Web.
Tatkowski, G., Hollister, M., Dhuley, R., Ruschman, M., Bauer, D., & Lukens, P. Cryocooled cold trap system for the SuperCDMS dilution refrigerator. United States.
Tatkowski, G., Hollister, M., Dhuley, R., Ruschman, M., Bauer, D., and Lukens, P. Thu . "Cryocooled cold trap system for the SuperCDMS dilution refrigerator". United States. https://www.osti.gov/servlets/purl/1605576.
@article{osti_1605576,
title = {Cryocooled cold trap system for the SuperCDMS dilution refrigerator},
author = {Tatkowski, G. and Hollister, M. and Dhuley, R. and Ruschman, M. and Bauer, D. and Lukens, P.},
abstractNote = {Operating 6,800 feet underground at the SNOLAB facility in Sudbury, Ontario, Canada, the dilution refrigerator-cooled SuperCDMS SNOLAB (Super Cryogenic Dark Matter Search at the Sudbury Neutrino Observatory Laboratory) experiment has been designed for maximum cryogenic up-time and remote operations. A key element in achieving these goals is a pair cold traps in the helium circulation stream of the dilution refrigerator; the first operating near liquid nitrogen temperatures and the second operating near liquid helium temperatures. Previous experience with the CDMS experiment, located underground at the Soudan Under-ground Laboratory, has given significant operational experience with dilution refrigerator cold traps and has solidified the demand of a system of dual cold traps. Unlike the CDMS-era system, the new SuperCDMS system will feature a cryocooler powered liquid nitrogen re-liquefying system (as opposed to regular under-ground re-filling of cold trap dewars using portable nitrogen dewars) and a cryogen-free 4 K cold trap, which eliminates the need for a bath of liquid helium.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {3}
}

Conference:
Other availability
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