Difference between revisions of "KPP November 30, 2014"
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(→Proposed Key Performance Parameters from November 21, 2014) |
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beam energy (5.5 pass)”</b> | beam energy (5.5 pass)”</b> | ||
− | + | :: <font color="green"><i>Done:</i> all data taking happened with >40 nA 10 GeV electron beam</font> | |
− | + | ||
− | + | Expected photon beam rate: Tagger: ~ 620Hz/MeV at the endpoint, at 50nA, 0.2e-4 RL. About 20% should pass through the 5mm collimator hole. Very preliminary PS measurements are about 50% off. | |
# <b>Detector running for ~one shift recording data from all subsystems.</b> | # <b>Detector running for ~one shift recording data from all subsystems.</b> | ||
− | #* ~8h data taking on Nov 23 20:00 - Nov 24 8:00 at 50 nA, 0.2e-4 RL, FCAL trigger | + | #* ~8h data taking on Nov 23 20:00 - Nov 24 8:00 at 50 nA, 0.2e-4 RL, FCAL trigger, solenoid at 1200A |
− | #* ~8h data taking on Nov 25 22:00 - Nov 24 6:00 at 100 nA, 1e-4 RL, BCAL trigger | + | #* ~8h data taking on Nov 25 22:00 - Nov 24 6:00 at 100 nA, 1e-4 RL, BCAL trigger, solenoid at 1200A |
#* <font color="green"><i>Done</i></font> | #* <font color="green"><i>Done</i></font> | ||
# <b>Snapshots of beam status screens and accelerator Elog entries demonstrating the electron beam current and energy.</b> | # <b>Snapshots of beam status screens and accelerator Elog entries demonstrating the electron beam current and energy.</b> | ||
− | #* | + | #* [https://logbooks.jlab.org/entry/3309203 Log Entry 3309203] Snapshot with 100nA, 3e-4 RL <font color="darkred">For an unknown yet reason at high beam rates some EPICS variables were stale on this window. At 50 nA these variables were updated normally. </font> |
− | #* | + | #* [https://logbooks.jlab.org/entry/3307724 Log Entry 3307724] Snapshot with 45nA. 0.2e-4 RL |
#*<font color="green"><i>Done</i></font> The beam energy can be derived from the tagger magnet field (1.5T for 12 GeV): 1.26T/1.50T*12GeV=10.08GeV | #*<font color="green"><i>Done</i></font> The beam energy can be derived from the tagger magnet field (1.5T for 12 GeV): 1.26T/1.50T*12GeV=10.08GeV | ||
# <b>Plots showing relative timing (coincidence) of the signals in TAGx, TOF, BCAL, FCAL, ST, PS (with TAGx).</b> | # <b>Plots showing relative timing (coincidence) of the signals in TAGx, TOF, BCAL, FCAL, ST, PS (with TAGx).</b> | ||
− | #* | + | #* [https://logbooks.jlab.org/entry/3309600 Log Entry 3309600] TDC timing of FDC, BCAL, ST, TOF, TAGH, TAGM and the FADC timing of TAGH, TAGM for the FCAL-triggered data at low luminosity and the BCAL-triggered data at high (x30) luminosity. <font color="darkred">The TAGH/M FADC signals are in the readout window, while the TDC signals are not (further trigger/latency tuning required)</font> |
− | #* [https://logbooks.jlab.org/entry/3308810 | + | #* [https://logbooks.jlab.org/entry/3308810 Log Entry 3308810] Similar to Log 3309600 for the FCAL trigger, in log scale |
− | #* | + | #* [https://logbooks.jlab.org/entry/3308027 Log Entry 3308027] TAGH/M timing with the PS trigger |
− | #* | + | #* [https://logbooks.jlab.org/entry/3309273 Log Entry 3309273] Geometrical matching of tracks to TOF |
− | #* | + | #* [https://logbooks.jlab.org/entry/3309273 Log Entry 3309018] Geometrical matching of tracks to FCAL |
− | #* [https://userweb.jlab.org/~zihlmann/stuff/tof_ST_TO_TOF_run1512_19.gif Plots] | + | #* <font color="green"><i>Done</i></font> - <font color="darkred"> TAGx TDC signals are out of the readout window yet </font> |
+ | <!-- #* [https://userweb.jlab.org/~zihlmann/stuff/tof_ST_TO_TOF_run1512_19.gif Plots] --> | ||
# <b>Event displays showing correlations of particle hits in the CDC, FDC, ST, TOF, BCAL, FCAL.</b> | # <b>Event displays showing correlations of particle hits in the CDC, FDC, ST, TOF, BCAL, FCAL.</b> | ||
− | #* | + | #* [https://logbooks.jlab.org/entry/3309428 Log Entry 3309428] 3-prong event from from run 1515 (FCAL trigger) |
− | #* | + | #* [https://logbooks.jlab.org/entry/3309427 Log Entry 3309427] Multi-track events from run 1515 (FCAL trigger) |
− | #* | + | #* [https://logbooks.jlab.org/entry/3309416 Log Entry 3309416] Another event from run 1515 (FCAL trigger) with good matching of hits in different detectors |
+ | #* <font color="green"><i>Done</i></font> | ||
# <b>Plots of reconstructed particle trajectories showing target position.</b> | # <b>Plots of reconstructed particle trajectories showing target position.</b> | ||
#* <font color="green">From the online logbook [https://logbooks.jlab.org/entry/3309411 z-vertex distributions]. We still need to show an x-y vertex plot from the same run.</font> | #* <font color="green">From the online logbook [https://logbooks.jlab.org/entry/3309411 z-vertex distributions]. We still need to show an x-y vertex plot from the same run.</font> |
Revision as of 02:05, 1 December 2014
Contents
Meeting Time and Place
The meeting will be on Sunday November 30, 2014 at 4:00pm EDT. No room at Jefferson Lab has been reserved.
Meeting Connections
- To join via a Web Browser, go to the page [1] https://bluejeans.com/660743227.
- To join via Polycom room system go to the IP Address: 199.48.152.152 (bjn.vc) and enter the meeting ID: 660743227.
- To join via phone, use one of the following numbers and the Conference ID: 660743227.
- US or Canada: +1 408 740 7256 or
- US or Canada: +1 888 240 2560
- Upon connection all microphones are automatically muted. To unmute your mike on a Polycom or equivalent unit, enter *4. Unmuting on a computer is trivial as there is a microphone button than can be clicked.
- More information on connecting to bluejeans is available.
Agenda
Proposed Key Performance Parameters from November 21, 2014
Hall D: “Detector operational: events recorded with a > 2 nA electron beam at > 10 GeV beam energy (5.5 pass)”
- Done: all data taking happened with >40 nA 10 GeV electron beam
Expected photon beam rate: Tagger: ~ 620Hz/MeV at the endpoint, at 50nA, 0.2e-4 RL. About 20% should pass through the 5mm collimator hole. Very preliminary PS measurements are about 50% off.
- Detector running for ~one shift recording data from all subsystems.
- ~8h data taking on Nov 23 20:00 - Nov 24 8:00 at 50 nA, 0.2e-4 RL, FCAL trigger, solenoid at 1200A
- ~8h data taking on Nov 25 22:00 - Nov 24 6:00 at 100 nA, 1e-4 RL, BCAL trigger, solenoid at 1200A
- Done
- Snapshots of beam status screens and accelerator Elog entries demonstrating the electron beam current and energy.
- Log Entry 3309203 Snapshot with 100nA, 3e-4 RL For an unknown yet reason at high beam rates some EPICS variables were stale on this window. At 50 nA these variables were updated normally.
- Log Entry 3307724 Snapshot with 45nA. 0.2e-4 RL
- Done The beam energy can be derived from the tagger magnet field (1.5T for 12 GeV): 1.26T/1.50T*12GeV=10.08GeV
- Plots showing relative timing (coincidence) of the signals in TAGx, TOF, BCAL, FCAL, ST, PS (with TAGx).
- Log Entry 3309600 TDC timing of FDC, BCAL, ST, TOF, TAGH, TAGM and the FADC timing of TAGH, TAGM for the FCAL-triggered data at low luminosity and the BCAL-triggered data at high (x30) luminosity. The TAGH/M FADC signals are in the readout window, while the TDC signals are not (further trigger/latency tuning required)
- Log Entry 3308810 Similar to Log 3309600 for the FCAL trigger, in log scale
- Log Entry 3308027 TAGH/M timing with the PS trigger
- Log Entry 3309273 Geometrical matching of tracks to TOF
- Log Entry 3309018 Geometrical matching of tracks to FCAL
- Done - TAGx TDC signals are out of the readout window yet
- Event displays showing correlations of particle hits in the CDC, FDC, ST, TOF, BCAL, FCAL.
- Log Entry 3309428 3-prong event from from run 1515 (FCAL trigger)
- Log Entry 3309427 Multi-track events from run 1515 (FCAL trigger)
- Log Entry 3309416 Another event from run 1515 (FCAL trigger) with good matching of hits in different detectors
- Done
- Plots of reconstructed particle trajectories showing target position.
- From the online logbook z-vertex distributions. We still need to show an x-y vertex plot from the same run.
- logbook 3309273 Matching tracks to TOF.
- Particle identification plots using signals from calorimetry and timing detectors (e.g. FCAL, BCAL, TOF).
- Pions versus protons in the driftchambers Document from Justin. This shows clear dE/dx signals in both the CDC and FDC
- Neutral pions in the forward calorimeter Document from Matt. Select the November 27 Update Slide.
- Electrons in the forward calorimeter Document from Matt
- Electrons/pions in the forward calorimeter Slide from David. There is a software scale difference with the previous slide, but we also see MIP peaks here.