A gas monitor for the ATLAS muon spectrometer precision chambers

Daniel S. Levin, Nir Amram, Meny Ben Moshe, Yan Benhammou, Tiesheng Dai, Edward B. Diehl, Erez Etzion, Claudio Ferretti, Jeffery Gregory, Mike Kiesel, Rudi Thun, Curtis Weaverdyck, Alan Wilson, Bing Zhou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The ATLAS Muon Spectrometer incorporates some 354,000 drift tubes assembled into 1200 Monitored Drift Tube (MDT) precision chambers, with a total gas volume of 723,000 dm3. A gas mixture of 93% Ar and 7% CO2 at 3 bar flows in a parallel feed at a rate of one chamber volume per day. Achieving the 80μm single drift tube design resolution requires stringent gas quality control. We report on the design and initial performance of a dedicated MDT mini-chamber conceived for continuous monitoring of the ATLAS Muon Spectrometer MDT system operating gas. This chamber enables measurement of the drift spectra from which gas properties relevent to MDT calibrations are determined.

Original languageEnglish
Title of host publication2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages569-573
Number of pages5
ISBN (Print)1424409233, 9781424409235
DOIs
StatePublished - 2007
Event2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC - Honolulu, HI, United States
Duration: 27 Oct 20073 Nov 2007

Publication series

NameIEEE Nuclear Science Symposium Conference Record
Volume1
ISSN (Print)1095-7863

Conference

Conference2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
Country/TerritoryUnited States
CityHonolulu, HI
Period27/10/073/11/07

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