Difference between revisions of "Detector Material Budget in the Forward Direction"

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Following the recommendations from the Drift Chamber Review of 3/2007, a number of ideas have been considered for reducing the amount of material seen by forward-going particles [1,2].  These ideas have recently coalesced into one concrete proposal from the CDC team and two options from the FDC team.  These modifications are relative to the baseline CD2 design that was presented at the Drift Chamber Review [3].
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Following the recommendations from the Drift Chamber Review of 3/2007, a number of ideas have been considered for reducing the amount of material seen by forward-going particles [1,2].  These ideas have recently coalesced into one concrete proposal from the CDC team and two options from the FDC team.  These modifications are relative to the baseline CD2 design that was presented at the Drift Chamber Review [3].  The CDC modification is to replace the downstream CDC end plate, which was 6 mm of aluminum in the baseline design, with a lighter plate made of a carbon fiber composite 4 mm thick.  The FDC options involve removing some of the material in the active region associated with the cathode planes and reducing the material in the chamber support structure.  For a detailed description of the FDC options, see [2].
  
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The CDC modification is to replace the downstream CDC endplate which was 6 mm of aluminum in the baseline
 
  
  

Revision as of 16:44, 13 June 2007

Following the recommendations from the Drift Chamber Review of 3/2007, a number of ideas have been considered for reducing the amount of material seen by forward-going particles [1,2]. These ideas have recently coalesced into one concrete proposal from the CDC team and two options from the FDC team. These modifications are relative to the baseline CD2 design that was presented at the Drift Chamber Review [3]. The CDC modification is to replace the downstream CDC end plate, which was 6 mm of aluminum in the baseline design, with a lighter plate made of a carbon fiber composite 4 mm thick. The FDC options involve removing some of the material in the active region associated with the cathode planes and reducing the material in the chamber support structure. For a detailed description of the FDC options, see [2].


References

  1. D. Carmen and S. Taylor, "Drift Chamber Material Budget", gluex-doc-805, April, 2007.
  2. S. Taylor, "A proposal to reduce the FDC support material thickness", gluex-doc-800, April, 2007.
  3. R.T. Jones, "Detector Models for GlueX Monte Carlo Simulation: the CD2 Baseline", gluex-doc-732, January, 2007.
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