Comprehensive Study of a Proportional Chamber Cathode’s Surface after Its Operation in an Experiment at the Large Hadron Collider

A comprehensive study is performed of the cathode of a multiwire proportional chamber subjected to prolonged irradiation in an experiment at the LHC. The structural-phase state of the copper foil on the cathode is analyzed via nuclear scanning microscopy, atomic scanning microscopy, Raman spectrosco...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2022-08, Vol.86 (8), p.956-961
Main Authors: Gavrilov, G. E., Buzoverya, M. E., Karpov, I. A., Tatsenko, M. V., Tkachenko, M. V., Dzyuba, A. A., Maev, O. E., Seredin, P. V., Goloshchapov, D. L.
Format: Article
Language:English
Subjects:
Cathodes
Chambers
Electron emission
Hadrons
Heavy Ions
Large Hadron Collider
Metal foils
Nuclear Physics
Physics
Physics and Astronomy
Radiation counters
Raman spectroscopy
Scanning microscopy
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Summary:A comprehensive study is performed of the cathode of a multiwire proportional chamber subjected to prolonged irradiation in an experiment at the LHC. The structural-phase state of the copper foil on the cathode is analyzed via nuclear scanning microscopy, atomic scanning microscopy, Raman spectroscopy, and X-ray phase analysis. Nanostructural formations of carbon are found in the zone of spontaneous electron emission on the electrode.
ISSN:1062-8738
1934-9432
DOI:10.3103/S106287382208007X