Drift properties of the ATLAS MDT chambers

A cosmic ray setup has been assembled, in order to verify that the BIS-MDT chamber fulfils the requirements of the ATLAS Muon Spectrometer. We use measurements obtained with this setup to study the drift time spectra of the MDT tubes and explain its features, by comparing them with the predictions o...

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Bibliographic Details
Published inNuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 568; no. 2; pp. 672 - 681
Main Authors Avramidou, R.M., Gazis, E.N., Veenhof, R.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2006
Subjects
Drift time spectra
Garfield simulation
MDT chamber
Ramsauer dip
07.05.Tp
Garfield simulation
Drift time spectra
29.40.Cs
MDT chamber
29.40.Gx
Ramsauer dip
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Summary:A cosmic ray setup has been assembled, in order to verify that the BIS-MDT chamber fulfils the requirements of the ATLAS Muon Spectrometer. We use measurements obtained with this setup to study the drift time spectra of the MDT tubes and explain its features, by comparing them with the predictions of Garfield, Magboltz and Heed simulation programs. The drift time spectra have a peculiarity of a double peak. The second peak is a clear evidence of the Ramsauer dip of the electron cross-section.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2006.07.064