Difference between revisions of "BLTWG Meeting 2/13/2017"

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** phone: 408-740-7256 or 888-240-2560
 
** phone: 408-740-7256 or 888-240-2560
 
* Conference id: 536076821
 
* Conference id: 536076821
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* Present: <!--Richard J., James M., Dan S., Hovanes E., Alexandre D., Nathan S., Michael D., Thomas B., Tim W., Sascha S., Alex B., and Eugene C.-->
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* Present: Richard J., Brendan P., Hovanes E., Alexandre D., Nathan S., Alex B., and Eugene C.
  
 
=== Agenda ===
 
=== Agenda ===
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# [[GlueX-Collaboration-Feb-2017|Collaboration Meeting]] February 16-18
 
# [[GlueX-Collaboration-Feb-2017|Collaboration Meeting]] February 16-18
 
# Brief review of progress with beam conditions during run - ''discussion''
 
# Brief review of progress with beam conditions during run - ''discussion''
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#* [[media:scan_fits_feb_9_preliminary.pdf | Preliminary fits to harp scans from February 9. ]]
 
# Polarization from beam-collimator misalignment - ''Richard J.''
 
# Polarization from beam-collimator misalignment - ''Richard J.''
 
#* [https://logbooks.jlab.org/entry/3457220 results for incoherent (atomic) bremsstrahlung]
 
#* [https://logbooks.jlab.org/entry/3457220 results for incoherent (atomic) bremsstrahlung]
 
#* [https://logbooks.jlab.org/entry/3457630 results for coherent radiation from (2,2,0) lattice vector]
 
#* [https://logbooks.jlab.org/entry/3457630 results for coherent radiation from (2,2,0) lattice vector]
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#* [http://www.sciencedirect.com/science/article/pii/S0168900211020055 Reference that Hovanes promised with slightly rotated distributions]
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#* [http://www.sciencedirect.com/science/article/pii/S0168900211020055 MCB reference that Hovanes promised allegedly showing slightly rotated distributions]
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#* [[media:mainz_intensity_yx_4richard.pdf | Plot from MCB with Mainz kinematics including all vectors <=4 ]]
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#* [[media:mainz_intensity_yx_4richard.pdf | Plot of intensity from MCB with Mainz kinematics including all vectors <=4 actually showing the slight rotation in phi. ]]
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#* [[media:gluex_intensity_yx_4richard.pdf | Plot of intensity from MCB with JLAB 12GeV kinamtics including all vectors <=10]]
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#* [[media:gluex_polarization_yx_4richard.pdf | Plot of polarization (flipped sign) at Eg ~6GeV from MCB with JLAB 12GeV kinamtics including all vectors <=10]]
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# Update on hodoscope calibrations - ''Nathan S.''
 
# Update on hodoscope calibrations - ''Nathan S.''
−
# Update on microscope fibers replacement - ''Alex B.''
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# [https://halldweb.jlab.org/DocDB/0032/003208/001/BLTWG-2017-02-13.pdf Update on microscope initial calibrations] - ''Alex B.''
 
# Update on PS calibration and TAC measurements - ''Sascha S.''
 
# Update on PS calibration and TAC measurements - ''Sascha S.''
 
# Consistent inclusion of phonon radiation in coherent bremsstrahlung - ''Richard J.''
 
# Consistent inclusion of phonon radiation in coherent bremsstrahlung - ''Richard J.''
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=== Notes ===
 
=== Notes ===
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 +
Things we did not get to, but that we may want to discuss at some future beamline meeting include the following.
 +
 +
# The rate difference with different diamond orientations (entries 3456227, 3457757, 3457790)
 +
# The beam energy for this run (latest entry: 3457959). Also the BEM fix (scheduled for Thu. 21st) and its recent failures (entries 3456851, 3457107).
 +
# Soft photon background (induce satellite peaks on profiler and the rate difference with different diamond orientations).
 +
# System failures (PS power supply, target IOC).

Latest revision as of 12:40, 14 March 2017

Organization

  • Time: 11:30 EDT
  • Connecting: detailed instructions are here
  • Conference id: 536076821
  • Present: Richard J., Brendan P., Hovanes E., Alexandre D., Nathan S., Alex B., and Eugene C.

Agenda

  1. Announcements
  2. Collaboration Meeting February 16-18
  3. Brief review of progress with beam conditions during run - discussion
  4. Polarization from beam-collimator misalignment - Richard J.
  1. Update on hodoscope calibrations - Nathan S.
  2. Update on microscope initial calibrations - Alex B.
  3. Update on PS calibration and TAC measurements - Sascha S.
  4. Consistent inclusion of phonon radiation in coherent bremsstrahlung - Richard J.
  5. Progress toward integrated beamline simulation - Richard J.
  6. Progress toward determination of the PS acceptance - Alex S.
  7. Progress toward a common beam energy scale - Richard J.
  8. Any other business

Notes

Things we did not get to, but that we may want to discuss at some future beamline meeting include the following.

  1. The rate difference with different diamond orientations (entries 3456227, 3457757, 3457790)
  2. The beam energy for this run (latest entry: 3457959). Also the BEM fix (scheduled for Thu. 21st) and its recent failures (entries 3456851, 3457107).
  3. Soft photon background (induce satellite peaks on profiler and the rate difference with different diamond orientations).
  4. System failures (PS power supply, target IOC).
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