A system to test the effects of materials on the electron drift lifetime in liquid argon and observations on the effect of water

Journal Article · Wed Jul 01 00:00:00 EDT 2009 · Nucl.Instrum.Meth.A608:251-258,2009

DOI:https://doi.org/10.1016/j.nima.2009.07.024· OSTI ID:963437

Andrews, R; Jaskierny, W; Jostlein, H; Kendziora, C; Pordes, S; Tope, T

A materials test system (MTS) has been developed at FNAL to assess the suitability of materials for use in a large liquid argon time projection chamber. During development of the MTS, it was noted that controlling the cryostat pressure with a 'raining' condenser reduced the electron drift lifetime in the liquid argon. The effect of condensing has been investigated using a series of passive materials to filter the condensate. We report the results of these studies and of tests on different candidate materials for detector construction. The inferred reduction of electron drift lifetime by water concentrations in the parts per trillion is of particular interest.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 963437
• Report Number(s): FERMILAB-PUB-09-355-E; TRN: US0903356
• Journal Information: Nucl.Instrum.Meth.A608:251-258,2009, Journal Name: Nucl.Instrum.Meth.A608:251-258,2009
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ARGON
CONSTRUCTION
CRYOSTATS
ELECTRON DRIFT
LIFETIME
TIME PROJECTION CHAMBERS
WATER
Instrumentation