Difference between revisions of "The HPS Run Wiki"
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<b> Upstream halo counters must count <10Hz, downstream counters ~Hz </b> | <b> Upstream halo counters must count <10Hz, downstream counters ~Hz </b> | ||
− | * | + | * Perform harp scans to verify that beam profile did not changed, check with previous scan results: 2C21 x/y widths <50 micron, on the tagger/2C24 harp x/y widths ~300 micron. Use UPS-L for analysis, send harp scan results to the logbook |
* After beam tune is done send HPS scaler GUI to the logbook with proper comment | * After beam tune is done send HPS scaler GUI to the logbook with proper comment | ||
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'''<font size=3> Setup Beam to the Hall-B Faraday cup Dump and Setup HPS. </font>''' | '''<font size=3> Setup Beam to the Hall-B Faraday cup Dump and Setup HPS. </font>''' | ||
* Ask MCC to turn OFF the beam, turn OFF and degous tagger magnet | * Ask MCC to turn OFF the beam, turn OFF and degous tagger magnet | ||
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* Insert Chromax screen on the downstream viewer on the beam | * Insert Chromax screen on the downstream viewer on the beam | ||
* Start with tune mode beam, make sure beam is centered on the downstream viewer before going to CW | * Start with tune mode beam, make sure beam is centered on the downstream viewer before going to CW | ||
+ | <b> Beam should be centered using correctors on 2C21, 2C23, and 2C24 girder. All correcotrs on 2H00 and 2H02 must bet at 0 value!!! </b> | ||
* Ask for ~10 nA beam, watch cctv6 to make sure spot on the downstream viewer is clear and approximatly at the center of the screen | * Ask for ~10 nA beam, watch cctv6 to make sure spot on the downstream viewer is clear and approximatly at the center of the screen | ||
* Check to make sure Faraday cup and nA BPMs read similar curents | * Check to make sure Faraday cup and nA BPMs read similar curents |
Revision as of 16:02, 17 March 2015
[edit]
Important Phone NumbersShift ScheduleChecklists |
Procedures |
Manuals |
JLab Logbooks
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RC: Stepan Stepanyan
PDL: Harut AvagyanEvery Shift:
SVT InstructionsBefore sending beam to Faraday cup, verify (and page expert if otherwise):
The first time sending beam to the Faraday cup after the hall is closed, page the SVT expert. Every Run:
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Run Plan:March 18-19 (morning)Always Setup Beam to the Hall-B Tagger Dump after long down
Upstream halo counters must count <10Hz, downstream counters ~Hz
Setup Beam to the Hall-B Faraday cup Dump and Setup HPS.
Beam should be centered using correctors on 2C21, 2C23, and 2C24 girder. All correcotrs on 2H00 and 2H02 must bet at 0 value!!!
At 6am ask MCC for tagger magnet OFF and degaused, and hall swiped and put to the restricted access
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