Difference between revisions of "The HPS Run Wiki"
Line 143: | Line 143: | ||
<font color='red'> PUT BEAM BLOCKER IN FOR LONG RUNNING AT HIGH CURRENT</font><br> | <font color='red'> PUT BEAM BLOCKER IN FOR LONG RUNNING AT HIGH CURRENT</font><br> | ||
− | == Run Plan:March | + | == Run Plan:March 26-27, 2015 (day/swing/owl) == |
− | Yesterday: | + | 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. HPS shifts have been cancelled, including today's day shift. We'll assess where we are at today's 3 PM meeting, by which time we will have more information from MCC. Program will be re-evaluated at that point. |
− | + | ||
− | + | Tentatively: 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> Close Hall at 4PM, call MCC for sweep, go to controlled and beam permit when MCC is ready </font>''' | '''<font size=3> Close Hall at 4PM, call MCC for sweep, go to controlled and beam permit when MCC is ready </font>''' |
Revision as of 09:14, 26 March 2015
Important Phone NumbersShift ScheduleShift-Taker's Checklist (old)Hot CheckoutBeam Time Accounting |
Procedures |
Manuals |
JLab Logbooks
|
RC: John Jaros
PDL: Stepan StepanyanEvery 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.
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:
|
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. HPS shifts have been cancelled, including today's day shift. We'll assess where we are at today's 3 PM meeting, by which time we will have more information from MCC. Program will be re-evaluated at that point. Tentatively: 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. Close Hall at 4PM, call MCC for sweep, go to controlled and beam permit when MCC is ready 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.
|
|
|
|
|
|
|
|
Webcams:
|
Slow Controls: |
Accelerator:
|
Online & Offline: |