Difference between revisions of "GlueX TOF Meeting, June 21, 2016"
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#* Example: position of the MPV as a function of run number for various paddles <br>[[File:tofgain_plane1_paddle5.gif|200px]] [[File:tofgain_plane1_paddle15.gif|200px]] [[File:tofgain_plane1_paddle19.gif|200px]] <br>[[File:tofgain_plane1_paddle22.gif|200px]] [[File:tofgain_plane2_paddle22.gif|200px]] [[File:tofgain_plane2_paddle21.gif|200px]] <br>[[File:tofgain_plane2_paddle22_zoom.gif|200px]] | #* Example: position of the MPV as a function of run number for various paddles <br>[[File:tofgain_plane1_paddle5.gif|200px]] [[File:tofgain_plane1_paddle15.gif|200px]] [[File:tofgain_plane1_paddle19.gif|200px]] <br>[[File:tofgain_plane1_paddle22.gif|200px]] [[File:tofgain_plane2_paddle22.gif|200px]] [[File:tofgain_plane2_paddle21.gif|200px]] <br>[[File:tofgain_plane2_paddle22_zoom.gif|200px]] | ||
#* tof response of paddle 22 and paddle 21 for runs 10780 and 10783 <br>[[File:tofresponse_plane2_paddle22_run10780.gif|300px]] [[File:tofresponse_plane2_paddle21_run10780.gif|300px]] RUN10780 <br> [[File:tofresponse_plane2_paddle22_run10783.gif|300px]] [[File:tofresponse_plane2_paddle21_run10783.gif|300px]] RUN10783 | #* tof response of paddle 22 and paddle 21 for runs 10780 and 10783 <br>[[File:tofresponse_plane2_paddle22_run10780.gif|300px]] [[File:tofresponse_plane2_paddle21_run10780.gif|300px]] RUN10780 <br> [[File:tofresponse_plane2_paddle22_run10783.gif|300px]] [[File:tofresponse_plane2_paddle21_run10783.gif|300px]] RUN10783 | ||
− | #* What is the difference between these two runs? The Radiator!, run 10780 had a 50um radiator, run 10783 had a 20um radiator. The beam currents were in both cases 100nA. the lifetime was 55% for run 10780 and 85% for run 10783. | + | #* What is the difference between these two runs? The Radiator!, run 10780 had a 50um radiator, run 10783 had a 20um radiator. The beam currents were in both cases 100nA. the lifetime was 55% for run 10780 and 85% for run 10783. This means the rates were larger in run 10780! To illustrate this the scaler rate of paddle 21 and 22 of plane 1 as well as the beam current and active target a plotted during this period: <br> [[File:tofscaler_21_22_c.jpg | 400px]] <br>as can be seen during the time with thicker target the rate in paddle 22 increased while in paddle 21 it looks like saturation! |
+ | |||
#* Note all the above data is using the integral with pedestal subtracted. | #* Note all the above data is using the integral with pedestal subtracted. | ||
# Calibration Status | # Calibration Status |
Revision as of 08:24, 21 June 2016
GlueX Time-of-Flight Meeting
Tuesday, June 21, 2016
11:00 am EDT
JLab: CEBAF Center, Room F326/327
Agenda
- Announcements
- Review of minutes from the previous meeting
- PMT Gains
- Example: position of the MPV as a function of run number for various paddles
- tof response of paddle 22 and paddle 21 for runs 10780 and 10783
RUN10780
RUN10783 - What is the difference between these two runs? The Radiator!, run 10780 had a 50um radiator, run 10783 had a 20um radiator. The beam currents were in both cases 100nA. the lifetime was 55% for run 10780 and 85% for run 10783. This means the rates were larger in run 10780! To illustrate this the scaler rate of paddle 21 and 22 of plane 1 as well as the beam current and active target a plotted during this period:
as can be seen during the time with thicker target the rate in paddle 22 increased while in paddle 21 it looks like saturation!
- Example: position of the MPV as a function of run number for various paddles
- Note all the above data is using the integral with pedestal subtracted.
- Calibration Status
- NIM paper: svn co https://halldsvn.jlab.org/repos/trunk/publications/GlueXTOF
Communication
- The BlueJeans Meeting number is 350 531 998.
- Enter BlueJeans Meeting
Slides
Talks can be deposited in the directory /group/halld/www/halldweb/html/talks/2016
on the JLab CUE. This directory is accessible from the web at https://halldweb.jlab.org/talks/2016/ .