Difference between revisions of "BLTWG Meeting 10/2/2008"

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(List of documents for review pre-brief package)
m (Text replacement - "http://argus.phys.uregina.ca/gluex" to "https://halldweb.jlab.org")
 
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* Place: EVO and ESNET (with telephone bridge)
 
* Place: EVO and ESNET (with telephone bridge)
 
* Connecting: instructions are [[Tagged Beam Group Biweekly Meetings|here]]
 
* Connecting: instructions are [[Tagged Beam Group Biweekly Meetings|here]]
* Present:  
+
* Present: Richard J., Jim S., Tim W., Elke A., Igor S., Guangliang Y., Franz K., Dan S., and Alex S.
  
 
===Agenda===
 
===Agenda===
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===List of documents for review pre-brief package===
 
===List of documents for review pre-brief package===
 
# The general consensus was that we should take chapter 4 in the TDR version 4 and re-write it and then use this as the core of the pre-brief material.
 
# The general consensus was that we should take chapter 4 in the TDR version 4 and re-write it and then use this as the core of the pre-brief material.
# A short document which summarized the recommendations from the last review and how they were resolved.
+
# The recommendations from the last review.
 
# A drawing package for the magnet needs to be provided.
 
# A drawing package for the magnet needs to be provided.
 
# An update of the preliminary spec should be given.
 
# An update of the preliminary spec should be given.
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#* [http://nuclear.gla.ac.uk/~yang/Tagger/Optics%20calculation%20for%20the%20GlueX%20tagger%20spectrometer.doc Yang's report]
 
#* [http://nuclear.gla.ac.uk/~yang/Tagger/Optics%20calculation%20for%20the%20GlueX%20tagger%20spectrometer.doc Yang's report]
 
#* Dan Sober has agreed to work on improving this document.
 
#* Dan Sober has agreed to work on improving this document.
# A description of the present status of the fixed hodoscope.
+
# Fixed-array hodoscope: [https://halldweb.jlab.org/DocDB/0011/001154/001/tagger_fixed_array.pdf Purpose and design status]
 
# The June R+D note on the microscope  
 
# The June R+D note on the microscope  
#* [http://argus.phys.uregina.ca/gluex/DocDB/0010/001074/003/report-6-2008.pdf June Report]
+
#* [https://halldweb.jlab.org/DocDB/0010/001074/003/report-6-2008.pdf June Report]
#* [http://argus.phys.uregina.ca/gluex/DocDB/0011/001125/001/report-8-2008.pdf September Report]
+
#* [https://halldweb.jlab.org/DocDB/0011/001125/001/report-8-2008.pdf September Report]
 
# The pair spectrometer proposal with a few updated.
 
# The pair spectrometer proposal with a few updated.
 
#* [http://zeus.phys.uconn.edu/halld/glueXmeetings/mtg-9-2008/Hall_D_PS_9.1.3.doc pair spec. from collab meeting]
 
#* [http://zeus.phys.uconn.edu/halld/glueXmeetings/mtg-9-2008/Hall_D_PS_9.1.3.doc pair spec. from collab meeting]
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#* [http://www.jlab.org/Hall-D/software/wiki/images/0/0e/30D72.jpg image of the BNL magnet]
 
#* [http://www.jlab.org/Hall-D/software/wiki/images/0/0e/30D72.jpg image of the BNL magnet]
 
# Plan for what we want to study with diamonds.
 
# Plan for what we want to study with diamonds.
# Simulations - Alex
+
# Simulations for tagger and beamline- Alex
 +
# Update trigger rate and background - Alex
  
 
===Table of contents for Chapter4 of the TDR V4===
 
===Table of contents for Chapter4 of the TDR V4===
  
http://argus.phys.uregina.ca/gluex/DocDB/0011/001127/002/PPS_Review08.pdf
+
https://halldweb.jlab.org/DocDB/0011/001127/002/PPS_Review08.pdf
  
 
{|
 
{|
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|5.3|| Spectrometer optics|| " ||  54
 
|5.3|| Spectrometer optics|| " ||  54
 
|-
 
|-
|5.4|| Tagger detectors || Franz ||56
+
|5.4|| Tagger detectors || Franz ||56 [[http://www.jlab.org/~fklein/ch5_tagger_detectors.pdf update]]
 
|-
 
|-
 
|5.4.1 ||Focal plane microscope detectors ||Richard||56
 
|5.4.1 ||Focal plane microscope detectors ||Richard||56
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|5.4.2 ||Fixed focal plane array || Franz||56
 
|5.4.2 ||Fixed focal plane array || Franz||56
 
|-
 
|-
|5.5 ||(move to electron beam section) Beam dump optics ||Jim||  57
+
|6 || Photon Beamline || Jim
 
|-
 
|-
|6 ||Pair Spectrometer || Jim||59
+
|7 ||Beam Polarimetry and instrumentation || Jim||59
 
|-
 
|-
|7|| Operating beam intensity (Delete) || Curtis||63
+
|7.1 ||Spectral Analysis || Richard||59
 +
|-
 +
|7.2 ||Pair Spectrometer || Jim||59
 +
|-
 +
|7.3 ||Alternate Polarimeters || Jim||59
 
|}
 
|}

Latest revision as of 12:40, 14 March 2017

  • Time: 9:30 EST
  • Place: EVO and ESNET (with telephone bridge)
  • Connecting: instructions are here
  • Present: Richard J., Jim S., Tim W., Elke A., Igor S., Guangliang Y., Franz K., Dan S., and Alex S.

Agenda

  1. Writeups needed for the pre-brief materials packet - see below
  2. Tim's updated tagger hall drawings
  3. Relative placement of fixed array and microscope - Richard, Franz, Tim
  4. Resolution on tagger pole shape - Jim, Yang
  5. Remaining simulation studies needed for review - Richard
  6. Progress on simulation of the collimators - Sascha



List of documents for review pre-brief package

  1. The general consensus was that we should take chapter 4 in the TDR version 4 and re-write it and then use this as the core of the pre-brief material.
  2. The recommendations from the last review.
  3. A drawing package for the magnet needs to be provided.
  4. An update of the preliminary spec should be given.
  5. Yang's note on the TOSCA and transport studies should be included.
    • Yang's report
    • Dan Sober has agreed to work on improving this document.
  6. Fixed-array hodoscope: Purpose and design status
  7. The June R+D note on the microscope
  8. The pair spectrometer proposal with a few updated.
  9. Plan for what we want to study with diamonds.
  10. Simulations for tagger and beamline- Alex
  11. Update trigger rate and background - Alex

Table of contents for Chapter4 of the TDR V4

https://halldweb.jlab.org/DocDB/0011/001127/002/PPS_Review08.pdf

1 Introduction Richard 1
2 Choice of technique " 3
2.1 Compton back-scatter " 3
2.2 Tagged bremsstrahlung " 6
2.3 Coherent bremsstrahlung " 7
3 Photon source " 11
3.1 Essential features " 12
3.2 Use of collimation " 14
3.3 Choice of raditor " 23
3.4 Crystal quality " 25
3.5 Crystal thickness " 31
3.6 Crystal mount Franz 33
3.7 Crystal alignment and monitoring Franz 35
3.8 Crystal lifetime " 36
4 Electron beam Jim 39
4.1 Beam polarization " 39
4.2 Beam emittance " 41
4.3 Electron beam line optics " 44
4.4 Electron beam dump " 47
4.5 Beam containment and shielding Alex 47
5 Tagging spectrometer Jim 51
5.1 Specifcations " 51
5.2 Magnet " 52
5.3 Spectrometer optics " 54
5.4 Tagger detectors Franz 56 [update]
5.4.1 Focal plane microscope detectors Richard 56
5.4.2 Fixed focal plane array Franz 56
6 Photon Beamline Jim
7 Beam Polarimetry and instrumentation Jim 59
7.1 Spectral Analysis Richard 59
7.2 Pair Spectrometer Jim 59
7.3 Alternate Polarimeters Jim 59