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Development of a RICH Detector for the RHIC PHENIX Presented by Kenta Shigaki (CNS, U.Tokyo)

Development of a RICH Detector for the RHIC PHENIX Presented by Kenta Shigaki (CNS, U.Tokyo) for the PHENIX RICH Group at a JPS Meeting in Chiba on March 31, 1998. PHENIX RICH Group CNS, U.Tokyo H.Hamagaki, K.Shigaki U.Tokyo R.S.Hayano, K.Oyama KEK Y.Akiba Waseda U.

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Development of a RICH Detector for the RHIC PHENIX Presented by Kenta Shigaki (CNS, U.Tokyo)

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  1. Developmentof aRICH Detectorfor theRHIC PHENIX Presented by Kenta Shigaki (CNS, U.Tokyo) for the PHENIX RICH Group at a JPS Meeting in Chiba on March 31, 1998

  2. PHENIX RICH Group • CNS, U.Tokyo • H.Hamagaki, K.Shigaki • U.Tokyo • R.S.Hayano, K.Oyama • KEK • Y.Akiba • Waseda U. • J.Kikuchi, T.Sakaguchi, M.Hibino, T.Matsumoto • Nagasaki Inst. for App. Sci. • Y.Tanaka, Y.Nagasaka, H.Hara, K.Ebisu • State U. of NY, Stony Brook • Florida State U. • ORNL • BNL K.Shigaki at JPS Meeting in Chiba

  3. Presentation Outline • Introduction • RHIC • PHENIX • PHENIX RICH Overview • Project Status Highlights • Gas Vessel • PMT Supermodule • Assembly • Simulation / Software Development • Plan & Schedule • Concluding Remarks K.Shigaki at JPS Meeting in Chiba

  4. Introduction… RHIC Layout of the RHIC Accelerator Complex at BNL • Heavy Ion (up to 197Au) Collider • at up to 100 A GeV • Polarized Proton (up to 450 GeV) • also Available • Programs Starting in 1999 K.Shigaki at JPS Meeting in Chiba

  5. Introduction… RHIC… PHENIX Schematic Layout of the PHENIX Experiment at RHIC Current Status of the PHENIX Experimental Hall K.Shigaki at JPS Meeting in Chiba

  6. PHENIX RICH Overview Schematics of the PHENIX RICH Detector K.Shigaki at JPS Meeting in Chiba

  7. PHENIX RICH Overview (cont’d) • Physics Purpose • e-ID for • Di-Electron • Measurement • etc. • Performance Goal • Single Hadron Rejection at 104 Level • with Electron Efficiency ~ 100 % • Features • Full Acceptance Coverage for PHENIX Central Arms • (|y| < 0.35, df = 90 degrees x 2) • Gas Radiator (C2H6 ; gth ~ 25) • PMT Array Readout (5,120 Channels) • Pixel Size ~ 1 degree x 1 degree • n0 > 100 / cm ; <np.e.> ~ 20 w J/Y f K.Shigaki at JPS Meeting in Chiba

  8. Status Highlight… Gas Vessel 2 Arms ; 40 m3 Each Design & Construction by FSU First Vessel Delivered to BNL First Gas Vessel Delivered to BNL in December 1997 K.Shigaki at JPS Meeting in Chiba

  9. Status Highlight… PMT Supermodule PMT Supermodules Ready to be Installed • Mechanical Design • by SUNY Stony Brook & BNL • PMT’s QA Tested at CNS, U.Tokyo • 80 Supermodules for the First Vessel • Completed at SUNY Stony Brook K.Shigaki at JPS Meeting in Chiba

  10. Status Highlight… Assembly Started PMT Supermodules Pre-Installed in the Gas Vessel at BNL a Pre-Amplifier Card Attached to the Vessel K.Shigaki at JPS Meeting in Chiba

  11. Simulation / Software Development • Full GEANT Simulation & Analysis Chain • Work Completed • Optics Optimization • Choice of Radiator Gas • Stand-Alone • Performance • Evaluation • Background • / Shielding • Studies • Work to be Done • Calibration Studies • Tracking / Trigger Studies • Global Performance Evaluation K.Shigaki at JPS Meeting in Chiba

  12. Plan & Schedule 1998 3- 4 Loading PMT Supermodules 5- 6 Mirror Installation 6 Cabling 7 Window Installation 8 Final Tests - ARM 1 READY 1999 1- 7 PHENIX Engineering Run 2 ARM 2 READY 10- FIRST PHYSICS RUN K.Shigaki at JPS Meeting in Chiba

  13. Concluding Remarks First Article of RICH Detector for the RHIC PHENIX Experiment is under Construction at Full Speed The First Arm will be Completed in 1998; The First PHENIX Run Coming in 1999 Readout Electronics is under Development in Japan (+ ORNL) (cf. Talk by K.Oyama) Visit http://www.rhic.bnl.gov/phenix/ http://www.phenix-j.rhic.bnl.gov/rich/ for More Information if Interested K.Shigaki at JPS Meeting in Chiba

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