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PCID – Projectile Charge Identification Detector

PCID – Projectile Charge Identification Detector. Kraków - Katowice. Possible detectors: Thin Si detector Gas detectors Cherenkov detector Ring Imaging Cherenkov (RICH) detector. 1. Silicon detector. Thin silicon detector (≈ 200 μm) ‏. The MARS15 code (N.V.Mokhov) predictions. 2.

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PCID – Projectile Charge Identification Detector

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  1. PCID – Projectile Charge Identification Detector Kraków - Katowice Possible detectors: • Thin Si detector • Gas detectors • Cherenkov detector • Ring Imaging Cherenkov (RICH) detector 1

  2. Silicon detector Thin silicon detector (≈ 200 μm)‏ The MARS15 code (N.V.Mokhov) predictions 2

  3. Gas detector with field parallel to the beam direction Cathode readout plane Anode The MARS15 code (N.V.Mokhov) predictions 3

  4. Radiator n Theta (deg)‏ Boiling point (0C)‏ He 1.000036 0.48 CF4 1.0005 1.81 C4F10 1.00155 3.19 -2 C5F12 1.00172 3.35 28 C6F14 1.283 38.79 57 Areogel 1.03 13.86 Properties of radiators 4

  5. Photo multiplier Light guide beam Mirror C4F10 gas Cherenkov counter C4F10 Mylar window Mylar window 5

  6. The RHIC detector of the AMS-02 experiment Precise measurement of charged cosmic-ray spectra 6

  7. Results of RHIC prototype testat CERN SPS Particle charge determined from the total signal collected by the PMTs taking ring acceptance into account. NIM A560 (2006) 291 7

  8. Multipixel Avalanche Photodiode Silica aerogel Cherenkov counter mirror mirror He beam 4 cm mylar window 25 cm silica aerogel radiator (n=1.05)

  9. Silica aerogel Cherenkov counter Multipixel Avalanche Photodiode mirror He Light guide beam 4 cm mylar window 25 cm silica aerogel radiator (n=1.05)

  10. We plan to use the silica aerogel developed by the Catalysis Institute of Novosibirsk (used in other CERN experiments) 50* 50*25 mm**3, n=1.05 +/- 0.002 Photon yield measured for 25 mm thick silica aerogel (n=1.05) during the AMS test run in CERN: 14.7 +/- 0.17 for Z=1 particles We expect to have 3307 photons for Z=15 particles We plan to use about 100 Multipixel Avalanche Photodiode detectors (Zecotek). On average one MAPD will detect 33 photons. Analog and digital electronics will be the same as for Projectile Spectator Detector (?)

  11. List of our planned activities in the near future: • GEANT simulations • Test of electonics developed for PDS detector • Test of MAPD detectors

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