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 | ||
| − | * Present: | + | * Present: Richard J., Brendan P., Hovanes E., Alexandre D., Nathan S., Alex B., and Eugene C. |
=== Agenda === | === Agenda === | ||
# Announcements | # Announcements | ||
# [[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'' |
| − | + | #* [[media:scan_fits_feb_9_preliminary.pdf | Preliminary fits to harp scans from February 9. ]] | |
| − | # [[ | + | # Polarization from beam-collimator misalignment - ''Richard J.'' |
| − | #* [[ | + | #* [https://logbooks.jlab.org/entry/3457220 results for incoherent (atomic) bremsstrahlung] |
| − | # Update on calibrations - ''Nathan S.'' | + | #* [https://logbooks.jlab.org/entry/3457630 results for coherent radiation from (2,2,0) lattice vector] |
| − | # Update on | + | #* [http://www.sciencedirect.com/science/article/pii/S0168900211020055 MCB reference that Hovanes promised allegedly showing slightly rotated distributions] |
| − | # | + | #* [[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. ]] |
| + | #* [[media:gluex_intensity_yx_4richard.pdf | Plot of intensity from MCB with JLAB 12GeV kinamtics including all vectors <=10]] | ||
| + | #* [[media:gluex_polarization_yx_4richard.pdf | Plot of polarization (flipped sign) at Eg ~6GeV from MCB with JLAB 12GeV kinamtics including all vectors <=10]] | ||
| + | |||
| + | # Update on hodoscope calibrations - ''Nathan S.'' | ||
| + | # [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.'' | ||
| + | # Consistent inclusion of phonon radiation in coherent bremsstrahlung - ''Richard J.'' | ||
# Progress toward integrated beamline simulation - ''Richard J.'' | # Progress toward integrated beamline simulation - ''Richard J.'' | ||
# Progress toward determination of the PS acceptance - ''Alex S.'' | # Progress toward determination of the PS acceptance - ''Alex S.'' | ||
| Line 24: | Line 31: | ||
=== Notes === | === Notes === | ||
| + | |||
| + | 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
- H.323 ip address: 199.48.152.152
- web browser: https://bluejeans.com/536076821
- phone: 408-740-7256 or 888-240-2560
- Conference id: 536076821
- Present: Richard J., Brendan P., Hovanes E., Alexandre D., Nathan S., Alex B., and Eugene C.
Agenda
- Announcements
- Collaboration Meeting February 16-18
- Brief review of progress with beam conditions during run - discussion
- Polarization from beam-collimator misalignment - Richard J.
- results for incoherent (atomic) bremsstrahlung
- results for coherent radiation from (2,2,0) lattice vector
- MCB reference that Hovanes promised allegedly showing slightly rotated distributions
- Plot of intensity from MCB with Mainz kinematics including all vectors <=4 actually showing the slight rotation in phi.
- Plot of intensity from MCB with JLAB 12GeV kinamtics including all vectors <=10
- Plot of polarization (flipped sign) at Eg ~6GeV from MCB with JLAB 12GeV kinamtics including all vectors <=10
- Update on hodoscope calibrations - Nathan S.
- Update on microscope initial calibrations - Alex B.
- Update on PS calibration and TAC measurements - Sascha S.
- Consistent inclusion of phonon radiation in coherent bremsstrahlung - Richard J.
- Progress toward integrated beamline simulation - Richard J.
- Progress toward determination of the PS acceptance - Alex S.
- Progress toward a common beam energy scale - Richard J.
- 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.
- 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).
