Forward muon system for the DØ detector upgrade

V. Abramov, G. Alexeev, V. Babintsev, B. Baldin, J. Butler, D. Beutel, V. Bezzubov, N. Bojko, V. Burtovoi, S. Chekulaev, E. Chi, D. Denisov, S. Denisov, T. Diehl, V. Dodonov, A. Dyshkant, O. Eroshin, V. Evdokimov, A. Galyaev, P. GoncharovYu Gornushkin, D. Green, S. Gurzhiev, H. Haggerty, P. Hanlet, S. Hansen, D. Hedin, A. Ito, K. Johns, A. Kalinin, A. Kostritskiy, A. Kozelov, E. Kozlovski, R. Leitner, M. Lokajíček, S. Los, V. Malyshev, A. Mayorov, V. Medovikov, N. Mokhov, A. Nozdrin, I. Pisarev, S. Pospíšil, J. Raskowski, B. Sabirov, V. Šimák, G. Smith, A. Stefanik, D. Stoianova, M. Suk, V. Tokmenin, V. Vaniov, A. Volkov, A. Vorobiev, V. Vrba, R. Williams, D. Wood, Yu Yatsunenko, F. Yoffe, S. Zimin

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The design and main parameters of the completly redesigned DØ Forward Angle MUon System (FAMUS: 1.0 < |η| < 2.0) for the next high luminosity Tevatron Collider run are reported. Results of the studies of trigger scintillation counters based on fast scintillator Bicron 404A and WLS bars SOFZ-105 are presented. We report about results of test beam studies of prototype counters including minimum ionizing particles detection efficiency, time resolution and amplitude response. Radiation ageing of scintillating materials for the doses up to 1 Mrad, phototubes magnetic shielding in the fields of up to 700 G and ageing of phototubes are presented. Mini-Drift Tubes (MDTs) are chosen as FAMUS tracking detectors. The detector is a drift wire chamber with a metallic cathode. The detector operates in proportional mode with a fast freon-methane gas mixture to provide high drift velocity, adequate counting rate and low ageing. A description of the performance of the MDT is given. Studies of two prototypes in test beams were performed at FNAL and JINR. Obtained coordinate accuracy is around 0.5 mm r.m.s. All tests show robustness of MDT as tracking detector of the new muon system for a long period in high DØ background radiation conditions.

Original languageEnglish (US)
Pages (from-to)660-666
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume419
Issue number2-3
DOIs
StatePublished - Dec 21 1998

Keywords

  • Detector upgrade
  • Forward muon system
  • Mini-drift tubes
  • Tevatron collider
  • Trigger scintillation counters

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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