Difference between revisions of "Run Coordination Meetings: Spring run"
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#<span style="color:red">Accelerator RF timing (Elton/Fernando)</span> | #<span style="color:red">Accelerator RF timing (Elton/Fernando)</span> | ||
#* Current plan is that MO Hall D signal will be distributed to FCal plateform. | #* Current plan is that MO Hall D signal will be distributed to FCal plateform. | ||
| − | #<span style="color: | + | #<span style="color:green">Photon polarimeter </span> |
| + | #*<span style="color:blue">Should arrive between mid-February and early March</span> | ||
#*<span style="color:green">Fiducialize</span> | #*<span style="color:green">Fiducialize</span> | ||
#*<span style="color:green">Installation </span> | #*<span style="color:green">Installation </span> | ||
Revision as of 08:04, 28 January 2015
Contents
General information
Weekly Meetings, 8:45am, Wednesdays, Hall D conference room. Held by the Run Coordinator. Present Run Coordinator: Alexandre Deur
Connect Information
To connect from the outside by phone please do the following
1.) To join via a Web Browser, go to the page [1] https://bluejeans.com/660743227.
2.) To join via Polycom room system go to the IP Address: 199.48.152.152 (bjn.vc) and enter the meeting ID: 660743227.
3.) To join via phone, use one of the following numbers and the Conference ID: 660743227.
4.) The moderator code is 8394
Dial Either +1 408 740 7256 or +1 888 240 2560 for US or Canada
4.) More information on connecting to bluejeans is available. The old ESNET and SeeVough Information is archived here.
Specific instructions for connecting from JLab's Hall D conference room:
- Turn polycon on if necessary (do it before turning the computer on)
- With the polycon, place a call at 199.48.152.152
- Press # to enable the polycom keypad, then enter the meeting id: 660743227 and #
- You may have to unmute the microphone: #*4
- Turn the computer on if needed
Meeting General Agenda
Jan. 22nd 2015 meeting
- Report relevant updates from 7:50 and 8:00 daily MCC meetings:
- Accelerator schedule: No daily/weekly MCC meetings. Expected schedule:
- Feb. 13 - Feb. 26: Beam restoration (13 days)
- Feb. 27 - March 26: Accelerator development. Physics running conditions are similar to Fall 2014: Accelerator has priority. Possible running for Halls A/B/D.
- March 27 - April 2: Commission 5-pass separator.
- Apr. 3 - May 4: Physics run (Halls A/B/D).
- Report on Work in the Hall:
- If you have work to do in the Hall, please notify Tom (Hall work coordinator) and if necessary, document it in the electronic logbook.
- OSL need to be worn everywhere in Hall D.
- Hot Check OUT Status 13% ready ; 68% checked ; 18% not ready
- Spring 2015 runplan
Installation punch list
(items in red: must be done by 02/2715 ; Blue: must be done by 03/03/15 ; Green: Nice to have it
Reset HCO- LH2 Target
- Installation Tim. Mid. Feb.
- Controls Target Group. Need to assign a dedicated screen for target control.
- Verify that we can install a solid target taped on the rohacell chamber in case of LH2 target failure.
- Goniometer
- Build and install a frame at JLab for testing controls/tune procedure - Tim
- Procure a test diamond (Hovanes will ask Hall B/ Richard thick 300 μm diamond? for initial tests -
- Controls (Hovanes)
- Develop and test the tuning software (Ken L., Richard J.)
- Install nominal diamonds (sometimes in April)
- Active collimator (remains in its current position in front of 5mm hole and attached to primary collimator)
- Test installation in front of 3.4 mm hole. To be done today. Expected time for the process:2×2 hours. Tom, Alex B.
- Check alignment with pin for 5mm and 3.4mm holes Tom, Alex. B.
- Upstream profiler installed on a remotely controlled insertable holder
- Design/construction: Tim. Parts are ordered. They may arrive between mid- to end of February.
- Installation/Control . Tom/Hovanes. 1 to 2 weeks to install and test controls once the parts arrive.
- Survey. Tim/Tom
- Survey Tim.
- Realign photon beam line after bellow installation
- P.S. detectors
- coarse detectors
- high granularity detectors
- Total Absorption Counter (TAC)
- LH2/start counter
- Diamond
- Photon Polarimeter
- Solenoid (in case of floor settling)
- Upstream profiler
- Solenoid George/Beni.
- Power supply maintenance: Danfysik Technician starts Jan 22, finish by Feb 1
- Problematic connectors: 90% replaced
- Power Supply Robustness: Identifying available spares, finish by Feb 27
- New VCL Flow Controllers: Vendor claims they are fixed, install by Feb 6
Cryo trips: Fixed; chart recorder reading flat-lines at 24VAwkward ground fault fuse check: Requirement eliminated, simplify using high amp fuse by Feb 6Annual system maintenance: Complete, all power connections and control terminations re-torqued.- Simplified Ramp- up/ down documentation: signed by Fed 20.
- Defective He Level control (Cryo Group issue): Replace by February 20.
- Start Counter Eric. P.
- Remove the piece of tape in the beam path. (Eric P.)
- Reinstallation
- FDC Lubomir
- Chiller back by end of Feb. Sent to factory on 01/15/15 Tim/Tom
- Implement power-off switch of equipment safety Dave B.
- CDC Beni.
- Cable re-routing Fernando. Rerouting of HV cable to be done next week.
- Ready for cosmic run (BCal trigger) Replaced a few ADC already.
- Adjust the gas mixture with less argon. In Fall, it was closer to 55% than the nominal 50%
- Pair Spec. Alex S.
- Fix ≈10 channels? Fernando/Alex S./Vlad.
- Have a user-friendly GUI allowing all time monitoring of coinc. rates Alex S.
- FCal Hovanes
- GUI
- Improve underlying control software
- Improve the GUI
- GUI
BCal Elton- TOF
- Fall run TOF performance and improvements for spring run will be discussed tomorrow.
- Voltage Range Fernando
- Shielding
- Tagger
- Improve shielding at entrance of tagger magnet
- shield e- beam flange
- Shield the bottom of the photon beam line pipe.
- Use "Shadow shield (raise current wall just downstream of tagger magnet)
- Add to the green wall a layer of 4 of polyethylene in the sheet of flame ( from beam line to south wall).
- Fill empty beam-pipe hole in the green wall with polyethylene beads.
- Shield near tagger rack
Collimator cave: shield gamma probe Done
- Tagger
- Radiation monitor
- In order
- Install new radiation monitors
- Update readout Hovanes, Pavel D., Dan Sexton
- Lay cables for new neutron probe downstream of Solenoid
- Trigger Alex S.
- Reduction of switching noise in FCal trigger Alex S.
- Implement a trigger with high threshold for high energy signals and with SC (or TOF) coincidence for low energy signals
- Trigger connection to TDC (Beni) Cables made by Chris for redundant timing information.
- Firmware update
- Change jumper in distribution board (Alex S.)?
- Define trigger type and strategy for next run
- Reduction of switching noise in FCal trigger Alex S.
- DAQ: Multiblock mode run at ≈20 kHz Sergey
- Fix F125 firmware problem Cody is working on fixing it by mid-Feb.
- Run Condition database RCDB interface with DAQ
- Online David L.
- Fix high rate freeze Will start working on it by end of Jan.
- Upgrade O.S. (Red Hat 7) Deferred to after Spring run, except for GLUON01 that will be upgraded.
- Improve software for scaler readout (Paul M.)
- Accelerator RF timing (Elton/Fernando)
- Current plan is that MO Hall D signal will be distributed to FCal plateform.
- Photon polarimeter
- Should arrive between mid-February and early March
- Fiducialize
- Installation
- Survey
- Control
- TAC
- Phone Sprint repeater.
- Will be tested just before we start taking beam, when all equipments/controls are ready
- Specific safety notice (from Tom/Tim/Mark):
