Difference between revisions of "The HPS Run Wiki"

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== Run Plan June 15 - 17, 2019 ==
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== Run Plan June 17 - 18, 2019 ==
  
 
<!-- == Close the Hall at the beginning of the swing shift after everyone is out and MCC is ready to sweep ==
 
<!-- == Close the Hall at the beginning of the swing shift after everyone is out and MCC is ready to sweep ==
* If after the sweep MCC is not ready to send a beam to Hall-B, keep the hall in control access for people still doing work on detectors.
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* If after the sweep MCC is not ready to send a beam to Hall-B, keep the hall in control access for people still doing work on detectors.-->
 
  == Establish beam to the tagger dump ==
 
  == Establish beam to the tagger dump ==
 
# See "General Instructions" on the right for details
 
# See "General Instructions" on the right for details
 
# Log screenshots of the ECal and main HPS scaler screens for reference when the beam is established at the tagger
 
# Log screenshots of the ECal and main HPS scaler screens for reference when the beam is established at the tagger
== Bring beam to FC (for the first time this must be done with beamline expert): ==
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== Bring beam to FC ==
# '''<font color=red> Important Note: Before bringing beams to FC, make sure that the SVT, Hodoscope, and ECal are off, SVT is fully retracted, the target is out. If this is a first time that beam goes to FC after machine settings have changed then the SVT protection collimator position relative to the beam trajectory is unknown and therefore HPS protection collimator must be retracted.</font>'''
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<!--# '''<font color=red> Important Note: Before bringing beams to FC, make sure that the SVT, Hodoscope, and ECal are off, SVT is fully retracted, the target is out. If this is a first time that beam goes to FC after machine settings have changed then the SVT protection collimator position relative to the beam trajectory is unknown and therefore HPS protection collimator must be retracted.</font>'''
 
# '''Ask for 10 nA beam. When the beam sent to FC, it should be clearly visible on the downstream viewer. The halo counter rates downstream of the HPS, HPS-SC, and HPS-T should not be more than 10s of kHz. All upstream halo counters must be in the range of <100Hz.'''  
 
# '''Ask for 10 nA beam. When the beam sent to FC, it should be clearly visible on the downstream viewer. The halo counter rates downstream of the HPS, HPS-SC, and HPS-T should not be more than 10s of kHz. All upstream halo counters must be in the range of <100Hz.'''  
 
#'''First find the position of the collimator by performing the collimator wire scan. The current position of the wire for beam center is 4.41 (labeled on the GUI), if the measurement finds beam center at a different position use the expert GUI to set the 3.94 mm SVT collimator to the right position (current position is 6.212, which means that the distance between the wire and the center of the 3.94 mm hole is 1.802). After collimator is in place all beam studies should be done in these conditions with beam currents of 30 nA.''' -->
 
#'''First find the position of the collimator by performing the collimator wire scan. The current position of the wire for beam center is 4.41 (labeled on the GUI), if the measurement finds beam center at a different position use the expert GUI to set the 3.94 mm SVT collimator to the right position (current position is 6.212, which means that the distance between the wire and the center of the 3.94 mm hole is 1.802). After collimator is in place all beam studies should be done in these conditions with beam currents of 30 nA.''' -->

Revision as of 15:35, 17 June 2019


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Svtpic.png

Ecalpic.png