LArTPC Document 251-v1

Portable Neon Purification System

Document #:
LARTPC-doc-251-v1
Document type:
Conf.Talks,Seminars,Colloquia
Submitted by:
Richard Schmitt
Updated by:
Richard Schmitt
Document Created:
15 Feb 2007, 14:40
Contents Revised:
15 Feb 2007, 14:40
Metadata Revised:
15 Feb 2007, 14:40
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Abstract:
This paper describes the principle design features of a portable neon purification system and the results of the system performance testing. Neon gas replaces air in the Ring Imaging Cherenkov detector without using vacuum, in experiment E781(SELEX) at Fermilab. The portable neon purification system purifies neon gas by, first purging air with CO2, freezing the CO2, then cryoadsorbing the remaining contaminants. The freezer removes carbon dioxide from a neon gas mixture down to a maximum concentration of 500 parts-per-million (ppm). The charcoal bed adsorber removes nitrogen from neon gas down to a maximum concentration of 100 ppm. The original RICH vessel was designed to hold vacuum but its photomultiplier tube plates were not.
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Notes and Changes:
This gas purge system is relevant to purging a liquid argon TPC. The thermodynamics are similar to the SELEX RICH. Published in "Advances in Cryogenic Engineering, Volume 41B, page 1907, 1995
Publication Information:
Published in "Advances in Cryogenic Engineering, Volume 41B, page 1907, 1995
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