Difference between revisions of "RC Update and Run Plan for Aug 13, 2020"
From HallCWiki
(→Current Run Plan) |
(→Recent polarization measurements) |
||
Line 14: | Line 14: | ||
== Recent polarization measurements == | == Recent polarization measurements == | ||
+ | |||
+ | |||
+ | = Current Run Plan = | ||
+ | |||
+ | <b> Normal Production running </b> | ||
+ | |||
+ | *<b>Prerequisites</b> | ||
+ | |||
+ | <ul> | ||
+ | |||
+ | *Make sure [http://opsweb.acc.jlab.org/internal/ops/ops_webpage/restrictions/ops_restrictions.html operational restrictions] are followed. | ||
+ | |||
+ | *Make sure the raster size is correct (4-4.5) | ||
+ | |||
+ | *Monitor beam parameters/configuration very often and post an entry like [https://logbooks.jlab.org/entry/3777457 this] at the beginning of your shift and when run conditions have changed | ||
+ | |||
+ | *Running on cell targets: raster always ON (4-4.5, size will be determined by the scraping checks), orbit locks ON, current ramp rate 1 muA/sec | ||
+ | |||
+ | *Always take 120Hz of EDTM | ||
+ | |||
+ | *Fill the BTA with realistic numbers. If the desired beam current is not delivered prorate your ABUs! | ||
+ | |||
+ | * Change the IHWP every 4 hours when running on glass cells | ||
+ | |||
+ | </ul> | ||
+ | |||
+ | *<b>Run plan</b> | ||
+ | |||
+ | <ul> | ||
+ | *Start back with the Beam / Raster checkout (short procedure) [https://hallcweb.jlab.org/wiki/index.php/Beam_and_Raster_Checkout_for_A1n/d2n_(Short_Procedure) Checkout] | ||
+ | |||
+ | * Production on 3He; if not able to reach requested current, pro-rate the ABUs | ||
+ | |||
+ | </ul> | ||
+ | |||
+ | === Notes for tomorrow's 7:45 meeting === | ||
+ | |||
+ | |||
+ | ==== Future ==== | ||
+ | |||
+ | * Opportunistic target polarization calibration and studies on Tuesday-Wednesday during beam off and Moller measurement (priority is beam)?? | ||
+ | * We are on the schedule to switch to 1st pass on Monday/Tuesday (17AUG / 18AUG). Need about ~ 3 days at 1st pass and would like to switch back to 5th pass before the weekend. | ||
+ | * EPR diode good for now, but check for future planned accesses. | ||
+ | * If Hall will have opening for 1+ hours, let Simona know as there is work to do on the cerenkov. | ||
+ | |||
+ | ==== Hall Access ==== | ||
+ | |||
+ | == When there is a down:== |
Revision as of 12:13, 13 August 2020
Contents
RC Meeting Information
RC Daily Meetings are at 4:15 PM, remote
Wednesday Aug 13 2020.
General updates
Pending problem
- Beam trip rate
Recent polarization measurements
Current Run Plan
Normal Production running
- Prerequisites
- Make sure operational restrictions are followed.
- Make sure the raster size is correct (4-4.5)
- Monitor beam parameters/configuration very often and post an entry like this at the beginning of your shift and when run conditions have changed
- Running on cell targets: raster always ON (4-4.5, size will be determined by the scraping checks), orbit locks ON, current ramp rate 1 muA/sec
- Always take 120Hz of EDTM
- Fill the BTA with realistic numbers. If the desired beam current is not delivered prorate your ABUs!
- Change the IHWP every 4 hours when running on glass cells
- Run plan
- Start back with the Beam / Raster checkout (short procedure) Checkout
- Production on 3He; if not able to reach requested current, pro-rate the ABUs
Notes for tomorrow's 7:45 meeting
Future
- Opportunistic target polarization calibration and studies on Tuesday-Wednesday during beam off and Moller measurement (priority is beam)??
- We are on the schedule to switch to 1st pass on Monday/Tuesday (17AUG / 18AUG). Need about ~ 3 days at 1st pass and would like to switch back to 5th pass before the weekend.
- EPR diode good for now, but check for future planned accesses.
- If Hall will have opening for 1+ hours, let Simona know as there is work to do on the cerenkov.