DEVELOPMENT AND EVALUATION OF THE MUON TRIGGER DETECTOR USING A RESISTIVE PLATE CHAMBER

  • Received : 2011.02.16
  • Accepted : 2011.03.22
  • Published : 2011.03.30

Abstract

The PHENIX Experiment is the largest of the four experiments that have taken data at the Relativistic Heavy Ion Collider. PHENIX, the Pioneering High Energy Nuclear Interaction eXperiment, is designed specifically to measure direct probes of the collisions such as electrons, muons, and photons. The primary goal of PHENIX is to discover and study a new state of matter called the Quark-Gluon Plasma. Among many particles, muons coming from W-boson decay gives us key information to analyze the spin of proton. Resistive plate chambers are proposed as a suitable solution as a muon trigger because of their fast response and good time resolution, flexibility in signal readout, robustness and the relatively low cost of production. The RPC detectors for upgrade were assembled and their performances were evaluated. The procedure to make the detectors better was optimized and described in detail in this thesis. The code based on ROOT was written and by using this the performance of the detectors made was evaluated, and all of the modules for north muon arm met the criteria and installation at PHENIX completed in November 2009. As RPC detectors that we made showed fast response, capacity of covering wide area with a resonable price and good spatial resolution, this will give the opportunity for applications, such as diagnosis and customs inspection system.

References

  1. Santonico R, Cardarelli R. Development of resistive plate counters. Nucl. Instr. Meth. A 1981;187(2-3):377-380. https://doi.org/10.1016/0029-554X(81)90363-3
  2. Parkhomchuck VV, Pestov YN, Petrovykh NV. A spark counter with large area. Nucl. Instr. Meth. 1971;93(2):269-276. https://doi.org/10.1016/0029-554X(71)90475-7
  3. Cardarelli R, Santonico R, Biagio A, Lucci A. Progress in resistive plate counters. Nucl. Instr. Meth. A 1988;263(1);20-25. https://doi.org/10.1016/0168-9002(88)91011-X
  4. Cardarelli R, Ciaccio A, Santonico R. Performance of a resistive plate chamber operating with pure $CF_{3}Br$. Nucl. Instr. Meth. A 1993;333(2-3):399-403. https://doi.org/10.1016/0168-9002(93)91182-M
  5. Camarri P, Cardarelli R, Ciaccio A, Santonico R. Streamer suppression with SF 6 in RPCs operated in avalanche mode. Nucl. Instr. Meth. A 1998;414:317-324. https://doi.org/10.1016/S0168-9002(98)00576-2
  6. Zeballos EC. A new type of resistive plate chamber: the multigap RPC. Nucl. Instr. Meth. A 1996;374:132-135. https://doi.org/10.1016/0168-9002(96)00158-1
  7. Fonte P. High-resolution RPC's for large TOF systems. Nucl. Instr. Meth. A 2000;449:295-301. https://doi.org/10.1016/S0168-9002(99)01299-1
  8. Fonte P. A spark-protected high-rate detector. Nucl. Instr. Meth. A 1999;431:154-159. https://doi.org/10.1016/S0168-9002(99)00221-1
  9. Peskov V, Fonte P. The PSD99-5th International Conference on Position-Sensitive Detectors, London, England. 1999.
  10. Bacci C. Results from the analysis of data collected with a 50m RPC carpet at YangBaJing. Nucl. Instr. Meth. A 2000;456:121-125. https://doi.org/10.1016/S0168-9002(00)00976-1
  11. Abbrescia M. The simulation of resistive plate chambers in avalanche mode: charge spectra and efficiency. Nucl. Instr. and Meth. A 1999;431:413-427. https://doi.org/10.1016/S0168-9002(99)00374-5
  12. CMS Muon collaboration. CMS muon technical design report. CERN/LHCC 97-32, 1997.
  13. ALICE collaboration. ALICE TOF technical design report. CERN/LHCC 2000-012, 2000.
  14. Akindinov A. The multigap resistive plate chamber as a time-of-flight detector. Nucl. Instr. Meth. A 2000;456:16-22. https://doi.org/10.1016/S0168-9002(00)00954-2
  15. PHENIX collaboration. Conceptual Design Report for a Muon Trigger, 2007.
  16. Park S. Production of gas gaps for the Forward RPCs of the CMS experiment. Nucl. Instr. Meth. A 2005;550:551-558. https://doi.org/10.1016/j.nima.2005.05.052
  17. Park S. Production of gas gaps for the Forward RPCs of the CMS experiment. Nucl. Phys., B Proc. Suppl. 2006;158.
  18. Bunce G, Saito N, Soffer J, Vogelsang W. Prospects for spin physics at RHICl. Ann Rev. Nucl. Part. Sci. 2000;50:525-575. https://doi.org/10.1146/annurev.nucl.50.1.525
  19. Ahn SH. Beam test results of a large forward Resistive Plate Chamber for the CMS/LHC. Nucl. Instr. Meth. A 2000;443:31-36. https://doi.org/10.1016/S0168-9002(99)01009-8
  20. Ahn SH. Study on the operational conditions of a double-gap resistive plate chamber for the CMS. Nucl. Instr. Meth. A 2000;456:29-34. https://doi.org/10.1016/S0168-9002(00)00957-8
  21. Ahn SH. Performance of a large forward resistive plate chamber for the CMS/LHC under high radiation environment. Nucl. Instr. Meth. A 2001;469(3):323-330. https://doi.org/10.1016/S0168-9002(01)00778-1
  22. Online Control System (ONCS). A data acquisition system for lab tests of the PHENIX detectors. 1997.
  23. European Organization for Nuclear Research (CERN), http://root.cern.ch.