Difference: CherenkovCounter (1 vs. 3)

Revision 3
22 Mar 2007 - Main.KlausFoehl
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META TOPICPARENT name="MemberList"

Disc Cherenkov Counter

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  The magnetic field in this area is in the order of 0.2Tesla, one has a few options in orienting the phototubes, but then magnetic shielding might be required nevertheless.
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See for comparison

ProximityFocussing
 
META FILEATTACHMENT attr="" comment="3.5sigma boundaries for pi-K-separation" date="1145970679" name="kfpanda12l.gif" path="kfpanda12l.gif" size="5733" user="KlausFoehl" version="1.1"
META FILEATTACHMENT attr="" comment="design suggestion for a curved lightguide" date="1145972293" name="curvedx3m05x4m01c.gif" path="curvedx3m05x4m01c.gif" size="8422" user="KlausFoehl" version="1.1"
META FILEATTACHMENT attr="" comment="eps figure lightguide" date="1145973553" name="curvedx3m05x4m01c.eps" path="curvedx3m05x4m01c.eps" size="10222" user="KlausFoehl" version="1.1"
Revision 2
25 Apr 2006 - Main.KlausFoehl
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META TOPICPARENT name="MemberList"
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Disc Cherenkov Counter
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Disc Cherenkov Counter

 

-- KlausFoehl - 25 Apr 2006
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  • Motivation and Kinematics:
    Motivation and Kinematics

Particle ID cannot rely on strangeness conservation as strangeness is fed from heavier flavours, in particular charme, and the CKM matrix is non-diagonal, with both cs and cd matrix elements.

Particles from benchmark-decays go up to 1/2 to 1/3 of the momentum reached in binary decays of the p anti-p system, thus PID need not reach up to the full invariant mass (to discuss).
  Detector thickness in the active angular range: 10mm (or similar), fused silica with specific weight 2.2g/cm3, about 9% radiation length. The Li_F material in the solenoid shadow requires moderate precautions against radiation, a Japanese supplier website states.
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  In the latest PANDA drawing (2006-4-24) there seems to be too little space foreseen to accomodate the focussing lightguide plus photon detectors part of this PID device.

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The MagneticField might be too strong fro some photon detectors.

 
  • 3.5sigma boundaries for pi-K-separation:
    3.5sigma boundaries for pi-K-separation
  • kfpanda12l.eps: eps separation calculation
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META FILEATTACHMENT attr="" comment="eps separation calculation" date="1145973620" name="kfpanda12l.eps" path="kfpanda12l.eps" size="25925" user="KlausFoehl" version="1.1"
META FILEATTACHMENT attr="" comment="3.5sigma boundaries for pi-K-separation" date="1145974037" name="kfpanda12l_.gif" path="kfpanda12l_.gif" size="3889" user="KlausFoehl" version="1.1"
META FILEATTACHMENT attr="" comment="design suggestion for a curved lightguide" date="1145974069" name="curvedx3m05x4m01c_.gif" path="curvedx3m05x4m01c_.gif" size="4721" user="KlausFoehl" version="1.1"
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META FILEATTACHMENT attr="" comment="Motivation an Kinematics" date="1145983815" name="york2006page10.png" path="york2006page10.png" size="70802" user="KlausFoehl" version="1.1"
META FILEATTACHMENT attr="" comment="Motivation and Kinematics" date="1145983848" name="york2006page10_.png" path="york2006page10_.png" size="44032" user="KlausFoehl" version="1.1"
 
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