Difference between revisions of "CDC commissioning plan"

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#Monitor current on innermost straws during initial photon beam alignment
 
#Monitor current on innermost straws during initial photon beam alignment
 
#*Prior to photon beam alignment, connect the inner ring of HVBs to one or more Bertan or Vern-Kiebler HV supplies with the current trip limit set to a reasonably high but safe value. If possible, set up a video camera so that the current shown on the power supply can be monitored from the counting house.  
 
#*Prior to photon beam alignment, connect the inner ring of HVBs to one or more Bertan or Vern-Kiebler HV supplies with the current trip limit set to a reasonably high but safe value. If possible, set up a video camera so that the current shown on the power supply can be monitored from the counting house.  
<s>#Short run with magnetic field on
+
#<s>Short run with magnetic field on</s>done!
#*Take a small amount of data with the magnetic field at its intended level to verify that the data from the detector still look sensible. </s>  
+
#*<s>Take a small amount of data with the magnetic field at its intended level to verify that the data from the detector still look sensible. </s>  
 
#Long run with magnetic field off
 
#Long run with magnetic field off
 
#*Collect enough data for 2-5M tracks from the target in its nominal position, with no magnetic field.
 
#*Collect enough data for 2-5M tracks from the target in its nominal position, with no magnetic field.
 
#*Collect a similar sample with the target in the alternate position which is needed for the FDC.  
 
#*Collect a similar sample with the target in the alternate position which is needed for the FDC.  
<s>
+
#<s>If time permits, a second run with magnetic field on</s>
#If time permits, a second run with magnetic field on
+
#*<s>Collect several M events with field on, but only if time permits, as the straight tracks are more useful for alignment.
#*Collect several M events with field on, but only if time permits, as the straight tracks are more useful for alignment.
+
 
</s>
 
</s>

Revision as of 10:45, 27 August 2014

  1. Monitor current on innermost straws during initial photon beam alignment
    • Prior to photon beam alignment, connect the inner ring of HVBs to one or more Bertan or Vern-Kiebler HV supplies with the current trip limit set to a reasonably high but safe value. If possible, set up a video camera so that the current shown on the power supply can be monitored from the counting house.
  2. Short run with magnetic field ondone!
    • Take a small amount of data with the magnetic field at its intended level to verify that the data from the detector still look sensible.
  3. Long run with magnetic field off
    • Collect enough data for 2-5M tracks from the target in its nominal position, with no magnetic field.
    • Collect a similar sample with the target in the alternate position which is needed for the FDC.
  4. If time permits, a second run with magnetic field on
    • Collect several M events with field on, but only if time permits, as the straight tracks are more useful for alignment.