Difference between revisions of "The HPS Run Wiki"
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Yesterday: Things were proceeding well when a power outage hit the whole accelerator complex and counting houses at about 4PM. Time since then has been spent in recovering the machine. The word is now that beams won't be back before swing tomorrow. | Yesterday: Things were proceeding well when a power outage hit the whole accelerator complex and counting houses at about 4PM. Time since then has been spent in recovering the machine. The word is now that beams won't be back before swing tomorrow. | ||
− | HPS shifts for Mar 26 day and swing and Mar 27 owl and day are cancelled. | + | '''<font size=3>HPS shifts for Mar 26 day and swing and Mar 27 owl and day are cancelled.</font>''' |
When we're back: 1) MCC re-tunes upstream beam;(2) When beams are acceptable, MCC restores beams to alcove;(3) When decent beams have been reestablished, calibrate downstream bpms (4) post calibration, require good spot on Chromax, low counts on halo counters, and then set-up chicane. 5) scan target vertically and horizontally, measure halo rates vs target; (5) Take data. Subsystem commissioning studies: more trigger commissioning studies, beam trip studies once orbit locks are on. | When we're back: 1) MCC re-tunes upstream beam;(2) When beams are acceptable, MCC restores beams to alcove;(3) When decent beams have been reestablished, calibrate downstream bpms (4) post calibration, require good spot on Chromax, low counts on halo counters, and then set-up chicane. 5) scan target vertically and horizontally, measure halo rates vs target; (5) Take data. Subsystem commissioning studies: more trigger commissioning studies, beam trip studies once orbit locks are on. | ||
− | '''<font size=3> | + | '''<font size=3> When we're back, proceed with program </font>''' |
'''<font size=3> MCC works on beam optics and matching, and tunes beam to tagger </font>''' | '''<font size=3> MCC works on beam optics and matching, and tunes beam to tagger </font>''' |
Revision as of 14:23, 26 March 2015
Important Phone NumbersShift ScheduleShift-Taker's Checklist (old)Hot CheckoutBeam Time Accounting |
Procedures |
Manuals |
JLab Logbooks
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RC: John Jaros
PDL: Stepan StepanyanEvery Shift:
SVT InstructionsBefore sending beam to Faraday cup, verify (and page SVT expert if otherwise):
The first time sending beam to the Faraday cup after the hall is closed, page the SVT expert.
Acceptable Beam Conditions:Before accepting beam, make sure all the conditions are met - beam profile and halo rates are what you expect (or very close to it). If unsure call to RC, PDL, or beamline expert!
Always read previous log entries, compare settings of BPMs and correctors with previous settings using scaler_hps GUI. Every Run:
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Run Plan:March 26-27, 2015 (day/swing/owl)Yesterday: Things were proceeding well when a power outage hit the whole accelerator complex and counting houses at about 4PM. Time since then has been spent in recovering the machine. The word is now that beams won't be back before swing tomorrow. HPS shifts for Mar 26 day and swing and Mar 27 owl and day are cancelled. When we're back: 1) MCC re-tunes upstream beam;(2) When beams are acceptable, MCC restores beams to alcove;(3) When decent beams have been reestablished, calibrate downstream bpms (4) post calibration, require good spot on Chromax, low counts on halo counters, and then set-up chicane. 5) scan target vertically and horizontally, measure halo rates vs target; (5) Take data. Subsystem commissioning studies: more trigger commissioning studies, beam trip studies once orbit locks are on. When we're back, proceed with program MCC works on beam optics and matching, and tunes beam to tagger
Standards are on this page: ACCEPTABLE BEAM CONDITIONS.
Restore Beam to the Hall-B Dump
Energize Chicane
Be very careful when changing magnet currents when beams are on. Must enter new current ACCURATELY. Small steps (few amps) only.
Are we centered? Beamline Expert should enter new target positions if not.
Subsystem Commissioning Studies. Begin Data Taking.
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Webcams:
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Slow Controls: |
Accelerator:
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Online & Offline: |