A Regenerable Filter for Liquid Argon Purification

Journal Article · Sat Feb 28 23:00:00 EST 2009 · Submitted to Nucl.Instrum.Meth.A

DOI:https://doi.org/10.1016/j.nima.2009.04.020· OSTI ID:956748

Curioni, A; Fleming, B T; Jaskierny, W; Kendziora, C; Krider, J; Pordes, S; Soderberg, Mitchell Paul; Spitz, J; Tope, T; Wongjirad, T

A filter system for removing electronegative impurities from liquid argon is described. The active components of the filter are adsorbing molecular sieve and activated-copper-coated alumina granules. The system is capable of purifying liquid argon to an oxygen-equivalent impurity concentration of better than 30 parts per trillion, corresponding to an electron drift lifetime of at least 10 ms. Reduction reactions that occur at {approx} 250 C allow the filter material to be regenerated in situ through a simple procedure. In the following work we describe the filter design, performance, and regeneration process.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 956748
• Report Number(s): FERMILAB-PUB-09-295-E; arXiv eprint number arXiv:0903.2066
• Journal Information: Submitted to Nucl.Instrum.Meth.A, Journal Name: Submitted to Nucl.Instrum.Meth.A
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ARGON
DESIGN
ELECTRON DRIFT
General Physics
IMPURITIES
LIFETIME
MOLECULAR SIEVES
PERFORMANCE
PURIFICATION
REGENERATION