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== The Hall D/GlueX Tagger and Beamline Review ==
 
== The Hall D/GlueX Tagger and Beamline Review ==
  
 +
* [http://www.jlab.org/Hall-D/reviews/Tagger_Beamline_Review_Nov08/ November 19-20 Review Website] (halld guest)
 
* [http://www.jlab.org/Hall-D/reviews/Tagger_Beamline_Review_Nov08/Agenda.doc Agenda]
 
* [http://www.jlab.org/Hall-D/reviews/Tagger_Beamline_Review_Nov08/Agenda.doc Agenda]
 
* [http://www.jlab.org/Hall-D/reviews/Tagger_Beamline_Review_Nov08/Charge.doc Charge]
 
* [http://www.jlab.org/Hall-D/reviews/Tagger_Beamline_Review_Nov08/Charge.doc Charge]
* [http://www.jlab.org/Hall-D/reviews/Tagger_Beamline_Review_Nov08/ November 19-20 Review Website] (halld guest)
 
 
* [http://www.jlab.org/Hall-D/reviews Previous Reviews]
 
* [http://www.jlab.org/Hall-D/reviews Previous Reviews]
 +
* [http://www.jlab.org/Hall-D/reviews/Tagger_Beamline_Review_Nov08/Pre-Brief_Materials/ Pre-Brief material sent to the reviewers]
 +
* [http://www.jlab.org/Hall-D/reviews/Tagger_Beamline_Review_Nov08/JLab%20review.doc Preliminary report from the reviewers ]
 +
 +
== Action Items to be addressed ==
 +
# We need to specify the way of winding the coils for the tagger magnet. If the coils are wound badly you can have an unwanted heat exchange between the incomming cold water<br\> and the heated exhaust water. Juergen Ahrens described a good winding pattern in the mail below.<br\> [https://halldweb.jlab.org/DocDB/0011/001183/001/winding%20coils.txt Coil winding proceedure from Juergen Ahrens]
 +
# Juergen recommended using high tension rods going all the way through the magnet to bolt it together. This will save holes and will reduce machining so we should definately do it.
 +
# Juergen suggested that when we lift the middle magnet yoke plate off the vacuum chamber we may have difficulties. He recommended foreseeing some jacks to help at the start when lifting.
 +
# It needs to be verified that Moeller events are generated in the simulation.
 +
# If the beam is mis-steered which system will trip first?
 +
# It was suggested to consider making the pair spectrometer vacuum chamber top and bottom plates from iron. This may be cheaper than bolting plates onto the pole and will reduce the pole gap.
 +
# The design of the  downstream end of the vacuum chamber should be completed.
 +
# Update the official GEANT geometry to reflect the present status.
 +
# Finish first pair spectrometer iteration: rotate WSF counters, check thinner iron shielding, and estimate dose in the coils.
 +
# Look at not using a rawgowsky countour on the +x face. This may make installation easier.
 +
 +
== Final talks ==
 +
 +
*[https://halldweb.jlab.org/DocDB/0011/001182/001/TaggerReview_ProjectOverview_Lung_PRINT.pptx Charge to the Committee -    '''A. Lung''']
 +
*[https://halldweb.jlab.org/DocDB/0011/001181/001/tagger-beamline-eca.pptx Overview of Hall D Detector - '''E. C. Aschenauer''']
 +
*[https://halldweb.jlab.org/DocDB/0011/001180/001/yves.roblin.ebeam..pptx 12 GeV Electron Beam -        '''Y. Roblin''']
 +
*[https://halldweb.jlab.org/DocDB/0011/001168/001/PhotonBeamOverview.ppt Photon Beam Overview -        '''R. Jones''']
 +
*[https://halldweb.jlab.org/DocDB/0011/001172/001/beam_simu_talk.ppt Beam Simulations -            '''A. Somov''']
 +
*[https://halldweb.jlab.org/DocDB/0011/001164/001/CollimatorCaveDesignNov08.pptx Photon Beam Line- -          '''T. Whitlatch''']
 +
*[https://halldweb.jlab.org/DocDB/0011/001162/001/Tagger-MagnetNov08.pptx Magnet Design -              '''J. Stewart''']
 +
*[https://halldweb.jlab.org/DocDB/0011/001169/001/Tagger_optics_Nov15.ppt Tagger Optics -              '''D. Sober''']
 +
*[https://halldweb.jlab.org/DocDB/0011/001163/001/fixed_array_Nov08.ppt Fixed Array Hodoscope -      '''F. Klein''']
 +
*[https://halldweb.jlab.org/DocDB/0011/001167/001/BeamRev_Microscope-10-2008.pdf Microscope -                  '''I. Senderovich''']
 +
* [https://halldweb.jlab.org/DocDB/0011/001161/001/pair_Nov08_JAS.pptx Pair Spectrometer -          '''J. Stewart''']
 +
*[https://halldweb.jlab.org/DocDB/0011/001170/001/diamonds.ppt Diamond Selection and Testing - '''R. Jones''']
 +
 +
*[https://halldweb.jlab.org/DocDB/0011/001174/001/homework-11-20-2008.ppt Homework report]
  
== Material Prepared for the Review ==
+
== Preliminary Material Prepared for the Review ==
  
 
* <b>Pre-brief Material for the reviewers</b>
 
* <b>Pre-brief Material for the reviewers</b>
 
# General Documents
 
# General Documents
#* GlueX-doc-1063 [http://argus.phys.uregina.ca/cgi-bin/private/DocDB/ShowDocument?docid=1063 GlueX Physics and Detector Performance Metrics ]
+
#* GlueX-doc-1063 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=1063 GlueX Physics and Detector Performance Metrics ]
 
#*[http://www.jlab.org/~jstewart/PPS_Review08.pdf Technical Design of the Hall D Polarized Photon Beam]
 
#*[http://www.jlab.org/~jstewart/PPS_Review08.pdf Technical Design of the Hall D Polarized Photon Beam]
 
#* Technical Specifications
 
#* Technical Specifications
 
# Tagging Spectrometer
 
# Tagging Spectrometer
 
#* [http://www.jlab.org/~jstewart/Optics_1085_v4.doc  Optics calculations for the Hall D tagging spectromter magnet for a 12 GeV electron beam - G. Yang 2008 ed. D Sober]
 
#* [http://www.jlab.org/~jstewart/Optics_1085_v4.doc  Optics calculations for the Hall D tagging spectromter magnet for a 12 GeV electron beam - G. Yang 2008 ed. D Sober]
#* [http://argus.phys.uregina.ca/cgi-bin/private/DocDB/ShowDocument?docid=1085 Optics calculation for a single magnet tagger spectrometer - G. Yang 2008]
+
#* [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=1085 Optics calculation for a single magnet tagger spectrometer - G. Yang 2008]
#* [http://argus.phys.uregina.ca/cgi-bin/private/DocDB/ShowDocument?docid=588 Stress Analysis for the Hall D Tagger - G. Yang]
+
#* [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=588 Stress Analysis for the Hall D Tagger - G. Yang]
 
# Electron Machine
 
# Electron Machine
#*[http://argus.phys.uregina.ca/cgi-bin/private/DocDB/ShowDocument?docid=1140 Tagger Hall Song Sheet]
+
#*[https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=1140 Tagger Hall Song Sheet]
#*[http://argus.phys.uregina.ca/gluex/DocDB/0011/001142/001/ICD_Accelerator-HallD_05.pdf Machine interface Document]
+
#*[https://halldweb.jlab.org/DocDB/0011/001142/001/ICD_Accelerator-HallD_05.pdf Machine interface Document]
#*[http://argus.phys.uregina.ca/gluex/DocDB/0011/001150/001/08-033.pdf Shielding Basis for Hall D Complex]
+
#*[https://halldweb.jlab.org/DocDB/0011/001150/001/08-033.pdf Shielding Basis for Hall D Complex]
 
#** (Document included as supplimental information. Not part of this review.)
 
#** (Document included as supplimental information. Not part of this review.)
 
# Fixed Hodoscope
 
# Fixed Hodoscope
#*[http://argus.phys.uregina.ca/gluex/DocDB/0011/001154/002/tagger_fixed_array.pdf Fixed Hodoscope Status]
+
#*[https://halldweb.jlab.org/DocDB/0011/001154/004/tagger_fixed_array.pdf Fixed Hodoscope Status]
 
# The microscope detector  
 
# The microscope detector  
#* [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]
 +
#* [https://halldweb.jlab.org/DocDB/0011/001162/001/Tagger-MagnetNov08.pptx Magnet ]
 
# Pair Spectrometer
 
# Pair Spectrometer
#*[http://argus.phys.uregina.ca/gluex/DocDB/0011/001128/004/Hall_D_PS_10.pdf Pair Spectrometer Proposal]
+
#*[https://halldweb.jlab.org/DocDB/0011/001128/005/Hall_D_PS_10.pdf Pair Spectrometer Proposal]
# Plan for what we want to study with diamonds.
+
# [https://halldweb.jlab.org/DocDB/0010/001084/003/note_1084_v2.pdf Simulations of collimatior cave and pair spectrometer background- Alex]
# [http://argus.phys.uregina.ca/gluex/DocDB/0010/001084/003/note_1084_v2.pdf Simulations of collimatior cave and pair spectrometer background- Alex]
+
# [https://halldweb.jlab.org/DocDB/0010/001043/001/trigger-review-2008.pdf Trigger rates and background - Alex]
# [http://argus.phys.uregina.ca/gluex/DocDB/0010/001043/001/trigger-review-2008.pdf Trigger rates and background - Alex]
+
 
* <b>Final Talks</b>
 
* <b>Final Talks</b>
** GlueX-doc-1xxx [http://argus.phys.uregina.ca/cgi-bin/private/DocDB/ShowDocument?docid=1xxx GTemplate]
+
** GlueX-doc-1xxx [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=1xxx GTemplate]
 +
** [https://halldweb.jlab.org/DocDB/0011/001161/001/pair_Nov08_JAS.pptx Pair Spectrometer]
 +
** [https://halldweb.jlab.org/DocDB/0011/001162/001/Tagger-MagnetNov08.pptx Magnet]
  
 
== Relevant Wiki Pages ==
 
== Relevant Wiki Pages ==
Line 39: Line 72:
 
* [[Tagged Beam Group Biweekly Meetings|Biweekly Meetings]]
 
* [[Tagged Beam Group Biweekly Meetings|Biweekly Meetings]]
 
* Drawings (Tim)
 
* Drawings (Tim)
 +
* [[List of changes since the 2006 HallD Tagging Spectrometer and Photon Beamline Review|list of changes since 2006]]
  
 
= Dry Run Schedule for the Review =
 
= Dry Run Schedule for the Review =
Line 56: Line 90:
 
<td>39527048#</td></tr>
 
<td>39527048#</td></tr>
 
</table>
 
</table>
*9:00-10:30---    [http://zeus.phys.uconn.edu/halld/glueXreviews/taggerRev-11-2008/PhotonBeamOverview.ppt Photon Beam Overview]---                    R. Jones   
+
*9:00-10:30---    [http://zeus.phys.uconn.edu/halld/glueXreviews/taggerRev-11-2008/PhotonBeamOverview_v1.ppt Photon Beam Overview]---                    R. Jones   
 
*10:30-12:00---  
 
*10:30-12:00---  
 
*2:00-3:30---  [http://www.jlab.org/~somov/tagger_review/beam_simu.pdf Beam Simulations ]---                        A. Somov       
 
*2:00-3:30---  [http://www.jlab.org/~somov/tagger_review/beam_simu.pdf Beam Simulations ]---                        A. Somov       
Line 69: Line 103:
  
 
====Monday, November 10, 2008 Room F326/327 (evo meeting id 614258)====
 
====Monday, November 10, 2008 Room F326/327 (evo meeting id 614258)====
*9:00-10:30---       Magnet Design---                        J. Stewart
+
*9:00-10:30 --- [http://zeus.phys.uconn.edu/halld/glueXreviews/taggerRev-11-2008/diamonds.ppt Diamond Selection and Testing]---      R. Jones
*10:30 - 12:00 --- Diamond Selection and Testing---      R. Jones  
+
 
+
 
Richard not available 12:00 - 14:00
 
Richard not available 12:00 - 14:00
  
Line 77: Line 109:
  
 
====Tuesday, November 11, 2008 Room F326/327 (evo meeting id 614269)====
 
====Tuesday, November 11, 2008 Room F326/327 (evo meeting id 614269)====
*1:00-2:30---  Beam Simulations---         A. Somov
+
*1:00-2:30---  [http://www.jlab.org/~fklein/fixed_array_Nov08.ppt Fixed Array Hodoscope] ---         F. Klein
  
 
====Wednesday, November 12, 2008 Room F326/327 (evo meeting id 614270)====
 
====Wednesday, November 12, 2008 Room F326/327 (evo meeting id 614270)====
*9:00-10:30---  12 GeV Electron Beam---            Y. Roblin
+
*9:00-10:30---  [http://www.jlab.org/~jstewart/taggerreview.pptx 12 GeV Electron Beam]---            Y. Roblin
*3:30-5:00--- Photon Beam Overview---         R. Jones
+
*3:30-5:00--- [http://zeus.phys.uconn.edu/halld/glueXreviews/taggerRev-11-2008/PhotonBeamOverview_v2.ppt Photon Beam Overview]---         R. Jones
  
 
====Thursday, November 13, 2008 Room F326/327 (evo meeting id 614281)====
 
====Thursday, November 13, 2008 Room F326/327 (evo meeting id 614281)====
*8:00-9:00---  Microscope---                         I. Senderovich
+
*8:00-9:00---  [http://zeus.phys.uconn.edu/~senderovich/GlueX/Tagger/Reports/BeamRev-10-2008/BeamRev_Microscope-10-2008.pdf Microscope]---                         I. Senderovich
*9:00-10:00--- Pair Spectrometer---         J. Stewart
+
*9:00-10:00--- [http://www.jlab.org/~jstewart/pair_Nov08_JAS.pptx Pair Spectrometer] ---         J. Stewart
*10:00-11:30--- Magnet Design---                 J. Stewart
+
*10:00-11:30--- [http://www.jlab.org/~jstewart/Tagger-MagnetNov08.pptx Magnet Design---]                 J. Stewart
*3:00-4:30---  Diamond Selection and Testing--- R. Jones
+
*3:00-4:30---  [http://zeus.phys.uconn.edu/halld/glueXreviews/taggerRev-11-2008/diamonds_v2.ppt Diamond Selection and Testing]--- R. Jones
  
 
====Friday, November 14, 2008 Room F326/327 (evo meeting id 614292)====
 
====Friday, November 14, 2008 Room F326/327 (evo meeting id 614292)====
*8:00-9:00---  Overview of Hall D Detector---        E. C. Aschenauer  
+
*8:00-9:00---  [http://www.jlab.org/~elke/TALKS-Elke/tagger-beamline-eca.pptx Overview of Hall D Detector]---        E. C. Aschenauer  
*9:00-10:30---  Photon Beam Line---                 T. Whitlatch  
+
*9:00-10:30---  Photon Beam Line--- [http://www.jlab.org/~whitey/Collimator/Collimator_presentation1.pptx Collimator]                T. Whitlatch  
*10:30-12:00--- Fixed Array Hodoscope---         F. Klein
+
*10:30-12:00--- [http://www.jlab.org/~somov/tagger_review/beam_simu_talk.ppt Beam Simulations ]---                       A. Somov 
*2:30-4:00---  Tagger Optics---                 D. Sober
+
*2:30-4:00---  [http://faculty.cua.edu/sober/HallD/Tagger_optics_Nov14.ppt Tagger Optics] ---                 D. Sober
  
 
== Main Review ==
 
== Main Review ==
 
# Review: November 19 and 20.
 
# Review: November 19 and 20.
 
# issues that need special attention
 
# issues that need special attention

Latest revision as of 12:38, 14 March 2017

The Hall D/GlueX Tagger and Beamline Review

Action Items to be addressed

  1. We need to specify the way of winding the coils for the tagger magnet. If the coils are wound badly you can have an unwanted heat exchange between the incomming cold water<br\> and the heated exhaust water. Juergen Ahrens described a good winding pattern in the mail below.<br\> Coil winding proceedure from Juergen Ahrens
  2. Juergen recommended using high tension rods going all the way through the magnet to bolt it together. This will save holes and will reduce machining so we should definately do it.
  3. Juergen suggested that when we lift the middle magnet yoke plate off the vacuum chamber we may have difficulties. He recommended foreseeing some jacks to help at the start when lifting.
  4. It needs to be verified that Moeller events are generated in the simulation.
  5. If the beam is mis-steered which system will trip first?
  6. It was suggested to consider making the pair spectrometer vacuum chamber top and bottom plates from iron. This may be cheaper than bolting plates onto the pole and will reduce the pole gap.
  7. The design of the downstream end of the vacuum chamber should be completed.
  8. Update the official GEANT geometry to reflect the present status.
  9. Finish first pair spectrometer iteration: rotate WSF counters, check thinner iron shielding, and estimate dose in the coils.
  10. Look at not using a rawgowsky countour on the +x face. This may make installation easier.

Final talks

Preliminary Material Prepared for the Review

  • Pre-brief Material for the reviewers
  1. General Documents
  2. Tagging Spectrometer
  3. Electron Machine
  4. Fixed Hodoscope
  5. The microscope detector
  6. Pair Spectrometer
  7. Simulations of collimatior cave and pair spectrometer background- Alex
  8. Trigger rates and background - Alex

Relevant Wiki Pages

Dry Run Schedule for the Review

Connection Instructions:

  1. ESNET: join DOE ECS videoconferencing room 8542553.
  2. EVO: in community Gluex, look for "Photon Beam Review Dry Runs" meeting.
  3. Telephone: connect using the evo telephone bridge (for numbers, click here), with meeting Id's listed in parentheses below, and pass code 6626.

First round of dry runs (week of November 3rd)

Thursday, November 6, 2008 Room Elke's office and B101 after lunch (evo meeting id 614236)

Toll free: +1-800-377-8846 : US
+1-888-276-7715 : Canada
+1-302-709-8424 : International
participant code: 39527048#

Friday, November 7, 2008 Room F326/327 (evo meeting id 614247)

Monday, November 10, 2008 Room F326/327 (evo meeting id 614258)

Richard not available 12:00 - 14:00

Second round of dry runs (week of November 10)

Tuesday, November 11, 2008 Room F326/327 (evo meeting id 614269)

Wednesday, November 12, 2008 Room F326/327 (evo meeting id 614270)

Thursday, November 13, 2008 Room F326/327 (evo meeting id 614281)

Friday, November 14, 2008 Room F326/327 (evo meeting id 614292)

Main Review

  1. Review: November 19 and 20.
  2. issues that need special attention