Difference between revisions of "BLTWG Meeting 10/2/2008"
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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=== | ||
Line 18: | Line 18: | ||
===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. | ||
− | # | + | # 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. | ||
− | # Yang's note on the TOSCA and transport studies should be included. Dan Sober has agreed to work on improving this document. | + | #* [http://www.jlab.org/Hall-D/software/wiki/index.php/Photon_Beam_Design_Requirements Photon Beamline Spec] |
− | # | + | #* [http://www.jlab.org/Hall-D/software/wiki/index.php/Specification_for_tagging_magnetic_spectrometer Spectrometer Spec] |
− | # The June R+D note on the microscope | + | # Yang's note on the TOSCA and transport studies should be included. |
+ | #* [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. | ||
+ | # 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 | ||
+ | #* [https://halldweb.jlab.org/DocDB/0010/001074/003/report-6-2008.pdf June 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://www.jlab.org/Hall-D/software/wiki/images/5/5e/Hall_D_PS_9.2.pdf Jim's Last version] | ||
+ | #* [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 for tagger and beamline- Alex | ||
+ | # 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 [[http://www.jlab.org/~fklein/ch5_tagger_detectors.pdf 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 | ||
+ | |} |
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
- Writeups needed for the pre-brief materials packet - see below
- Tim's updated tagger hall drawings
- Relative placement of fixed array and microscope - Richard, Franz, Tim
- Resolution on tagger pole shape - Jim, Yang
- Remaining simulation studies needed for review - Richard
- Progress on simulation of the collimators - Sascha
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 recommendations from the last review.
- A drawing package for the magnet needs to be provided.
- An update of the preliminary spec should be given.
- 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.
- Fixed-array hodoscope: Purpose and design status
- The June R+D note on the microscope
- The pair spectrometer proposal with a few updated.
- Plan for what we want to study with diamonds.
- Simulations for tagger and beamline- Alex
- 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 |