Relative luminosity measurement of the LHC with the ATLAS forward calorimeter

A. Afonin, V. Akimov, T. Barillari, V. Bezzubov, M. Blagov, M. Braun, D. Bruncko, V. Chekulaev, A. Cheplakov, R. Degele, P. Denisov, V. Drobin, P. Eckstein, V. Ershov, N. Evdokimov, J. Ferencei, V. Fimushkin, A. Fischer, H. Futterschneider, V. GarkushaA. Glatte, C. Handel, J. Huber, N. Javadov, M. Kazarinov, A. Khoroshilov, E. Kiryunin, E. Kladiva, M. Kobel, A. Komar, M. Komogorov, A. Kozelov, G. Krupny, V. Kukhtin, S. Kulikov, L. Kurchaninov, E. Ladygin, A. B. Lazarev, A. Levin, W. F. Mader, W. L. Maslennikov, S. Menke, L. Merkulov, A. Neganov, H. Oberlack, J. Oram, R. Othegraven, V. Peleganchuk, V. Petrov, S. Pivovarov, E. Pospelov, N. Prokopenko, J. Rascvetalov, N. Rusakovich, P. Rutherfoord, D. Salihagic, A. Y. Savine, P. Schacht, H. Secker, F. Seifert, V. Seleznev, L. Shaver, S. Shilov, A. Snesarev, M. Soldatov, J. Spalek, M. Speransky, D. Stoyanova, A. Straessner, P. Strizenec, V. V. Sulin, A. Talyshev, S. Tapprogge, Yu A. Tikhonov, Y. Usov, V. Vadeev, I. Vasiliev, R. Walker, C. Zeitnitz

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

In this paper it is shown that a measurement of the relative luminosity changes at the LHC may be obtained by analysing the currents drawn from the high voltage power supplies of the electromagnetic section of the forward calorimeter of the ATLAS detector. The method was verified with a reproduction of a small section of the ATLAS forward calorimeter using proton beams of known beam energies and variable intensities at the U-70 accelerator at IHEP in Protvino, Russia. The experimental setup and the data taking during a test beam run in April 2008 are described in detail. A comparison of the measured high voltage currents with reference measurements from beam intensity monitors shows a linear dependence on the beam intensity. The non-linearities are measured to be less than 0.5% combining statistical and systematic uncertainties.

Original languageEnglish (US)
Article numberP05005
JournalJournal of Instrumentation
Volume5
Issue number5
DOIs
StatePublished - May 27 2010

ASJC Scopus subject areas

  • Mathematical Physics
  • Instrumentation

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    Afonin, A., Akimov, V., Barillari, T., Bezzubov, V., Blagov, M., Braun, M., Bruncko, D., Chekulaev, V., Cheplakov, A., Degele, R., Denisov, P., Drobin, V., Eckstein, P., Ershov, V., Evdokimov, N., Ferencei, J., Fimushkin, V., Fischer, A., Futterschneider, H., ... Zeitnitz, C. (2010). Relative luminosity measurement of the LHC with the ATLAS forward calorimeter. Journal of Instrumentation, 5(5), [P05005]. https://doi.org/10.1088/1748-0221/5/05/P05005