Difference: GiessenDirc (1 vs. 3)

Revision 3
03 Nov 2007 - Main.MichaelDueren
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META TOPICPARENT name="DesignItems"
A new concept for the PANDA Endcap DIRC was proposed by the Giessen group in June 2006, incorporating both the time-of-propagation (TOP) technique
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  thus leading to larger time differences in the TOP measurement which makes it less challenging to discriminate different particle species at large momenta.
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A detailed description of this concept can be found in the attached file giessendirc.pdf as well as under the link
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A detailed description of this concept can be found in the attached file giessendirc.pdf.

A description of a fitting method to extract the particle identification from the relative TOPs without a start signal from external detectors is described in the file giessendirc2.pdf. A clear separation of 4 σ is possible up to a pion/kaon momentum of 5 GeV/c.

Copies of the documents are under the links
  http://www.physik.uni-giessen.de/dueren/giessendirc.pdf
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http://www.physik.uni-giessen.de/dueren/giessendirc2.pdf
  The time-of-propagation concept obviously requires extremely fast photon detectors which are capable of measuring the travel time of cherenkov photons through the radiator material. At the moment especially micro-channel plate photomultiplier tubes (MCP-PMTs) seem to be a very promising technology. There is a group at the University of Nagoya, Japan, which works in collaboration with HAMAMATSU and KEK on the development of MCP-PMTs for a TOP DIRC intended for the BELLE / Super-B factory upgrade. Details about their results can be found in the attached NIM papers. BELLE has to make a technology decision concerning the TOP technique well before PANDA. In case they decide for a TOP Cherenkov counter with MCP-PMTs those photon detectors will probably become commercially available within the timescale of our project.

-- MarkusEhrenfried - 10 Aug 2006
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  • giessendirc.pdf: Conceptual Design of a Multi-Chromatic Time-of-Propagation Endcap DIRC for PANDA
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-- MichaelDueren - 03 Nov 2007
 
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  • giessendirc.pdf: Conceptual Design of a Multi-Chromatic Time-of-Propagation Endcap DIRC for PANDA
 
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  • giessendirc2.pdf: Resolution Studies for a Multi-chromatic Time-of-Propagation Endcap DIRC for PANDA
 

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META FILEATTACHMENT attr="" comment="MCP-PMT timing property for single photons, NIM A 528 (2004) 763-775" date="1155237767" name="MCP-PMT-A528-763-2004.pdf" path="MCP-PMT-A528-763-2004.pdf" size="537871" user="MarkusEhrenfried" version="1.1"
META FILEATTACHMENT attr="" comment="Test result of time-of-propagation Cherenkov counter, NIM A 453 (2000) 331-335" date="1155237952" name="TOP-Counter-NIM-A453-331-2000.pdf" path="TOP-Counter-NIM-A453-331-2000.pdf" size="280263" user="MarkusEhrenfried" version="1.1"
META FILEATTACHMENT attr="" comment="Time-of-propagation Cherenkov counter for particle identification, NIM A 440 (2000) 124-135" date="1155238070" name="TOP-Counter-NIM-A440-124-2000.pdf" path="TOP-Counter-NIM-A440-124-2000.pdf" size="406837" user="MarkusEhrenfried" version="1.1"
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META FILEATTACHMENT attr="" comment="Resolution Studies for a Multi-chromatic Time-of-Propagation Endcap DIRC for PANDA" date="1194085179" name="giessendirc2.pdf" path="giessendirc2.pdf" size="564595" user="MichaelDueren" version="1.1"
Revision 2
14 Aug 2006 - Main.MarkusEhrenfried
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META TOPICPARENT name="DesignItems"
A new concept for the PANDA Endcap DIRC was proposed by the Giessen group
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in June 2006, incorporating bothe the time-of-propagation (TOP) technique
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in June 2006, incorporating both the time-of-propagation (TOP) technique
  and a chromatic correction based on dichroic mirrors which split the spectral range of the Cherenkov photons. This combination of technologies allows both to avoid the decrease of resolution usually connected with
 
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