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Title: Portable neon purification system

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 CO{sub 2}, freezing the CO{sub 2}, 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.
Authors:
;
Publication Date:
OSTI Identifier:
102373
Report Number(s):
FNAL/C--95/252-E; CONF-950722--12
ON: DE95017460; TRN: 95:006793
DOE Contract Number:
AC02-76CH03000
Resource Type:
Conference
Resource Relation:
Conference: CEC/ICMC `95: cryogenic engineering conference and international cryogenic materials conference, Columbus, OH (United States), 17-21 Jul 1995; Other Information: PBD: Aug 1995
Research Org:
Fermi National Accelerator Lab., Batavia, IL (United States)
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; NEON; PURIFICATION; CHERENKOV COUNTERS; FERMILAB TEVATRON