Difference between revisions of "KPP November 30, 2014"
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== Agenda == | == Agenda == | ||
== Proposed Key Performance Parameters from November 21, 2014 == | == Proposed Key Performance Parameters from November 21, 2014 == | ||
| + | |||
| + | <b>Hall D: “Detector operational: events recorded with a > 2 nA electron beam at > 10 GeV | ||
| + | beam energy (5.5 pass)”</b> | ||
| + | |||
| + | <p> | ||
| + | <font color="green"><i>Done:</i> all data taking happened with >40 nA 10 GeV electron beam</font> | ||
| + | </p> | ||
| + | |||
# <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 25 22:00 - Nov 24 6:00 at 100 nA, 1e-4 RL, BCAL trigger | ||
| + | #* <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> | ||
| − | #* From online logbook [https://logbooks.jlab.org/entry/3309203 Snapshot with thick radiator and 100nA] | + | #* From online logbook [https://logbooks.jlab.org/entry/3309203 Snapshot with thick radiator and 100nA] <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> |
| − | + | #* From online logbook [https://logbooks.jlab.org/entry/3307724 Snapshot with thick radiator and 45nA] | |
| + | #*<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> | ||
#* <font color="green">[https://logbooks.jlab.org/entry/3309600 Log Entry 3309600] shows good correlations.</font> | #* <font color="green">[https://logbooks.jlab.org/entry/3309600 Log Entry 3309600] shows good correlations.</font> | ||
| Line 28: | Line 39: | ||
#* From the online logbook [https://logbooks.jlab.org/entry/3309273 timing plots] | #* From the online logbook [https://logbooks.jlab.org/entry/3309273 timing plots] | ||
#* From the online logbook [https://logbooks.jlab.org/entry/3309018 TDC timing plots] | #* From the online logbook [https://logbooks.jlab.org/entry/3309018 TDC timing plots] | ||
| + | #* From the online logbook [https://logbooks.jlab.org/entry/3308027 TAGH/M timing with the PS trigger] | ||
#* [https://userweb.jlab.org/~zihlmann/stuff/tof_ST_TO_TOF_run1512_19.gif Plots] | #* [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> | ||
Revision as of 00:29, 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
- 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
- ~8h data taking on Nov 25 22:00 - Nov 24 6:00 at 100 nA, 1e-4 RL, BCAL trigger
- Done
- Snapshots of beam status screens and accelerator Elog entries demonstrating the electron beam current and energy.
- From online logbook Snapshot with thick radiator and 100nA 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.
- From online logbook Snapshot with thick radiator and 45nA
- 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 shows good correlations.
- TDC from logbook
- From the online logbook timing plots
- From the online logbook TDC timing plots
- From the online logbook TAGH/M timing with the PS trigger
- Plots
- Event displays showing correlations of particle hits in the CDC, FDC, ST, TOF, BCAL, FCAL.
- Run 1515 from the online logbook Another 3-track event
- Run 1515 from the online logbook More intersting events
- Run 1515 from the online logbook All detectors except the start counter shows good matches to the FCAL for both charged tracks and photons.
- 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.
