Run Coordination Meetings: Spring run

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

Feb. 4th 2015 meeting

1. Report relevant updates from 7:50 and 8:00 daily MCC meetings:
   • Accelerator schedule: No daily/weekly MCC meetings. Expected schedule:
   1. Feb. 13 - Feb. 26: Beam restoration (13 days)
   2. Feb. 27 - March 26: Accelerator development. Physics running conditions are similar to Fall 2014: Accelerator has priority. Possible running for Halls A/B/D.
   3. March 27 - April 2: Commission 5-pass separator.
   4. Apr. 3 - May 4: Physics run (Halls A/B/D).
   • Link to accelerator short term schedule
   • Accelerator schedule up to 09/30/2016.
2. 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.
3. Hot Check OUT Status 18% ready ; 80% checked ; 18% not ready
4. 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

LH2 Target

1. Installation Tim. Mid. Feb. Craned up onto the platform yesterday. Tomorrow: survey and alignment. Making a new flange for the ST. Should be ready Monday. ST will then be installed next week.
2. Controls Target Group. Need to assign a dedicated screen for target control.
3. Verify that we can install a 1 mm solid CH2 target taped on the nose of the start counter in case of LH2 target failure.

Goniometer

1. Build and install a frame at JLab for testing controls/tune procedure - Tim. Hardware is ready.
2. Richard Jones will provide a 100 μm diamond for initial tests. Is the diamond good enough? -
3. Controls (Hovanes) Expect about 2 days of tests.
4. Port and test the tuning software: Ken L. will come on Apr. 17th but will work remotely on importing his porgram. Paul M. is his JLab contact.Paul will take care of the initial tests, with Franz K. and Eugene Pasyuk support.
5. Install nominal diamonds (sometimes in April (1 shift of work)

Active collimator (remains in its current position in front of 5mm hole and attached to primary collimator)

1. Test installation in front of 3.4 mm hole. (Time needed for the process:2×15min.)
2. Check alignment with pin for 5mm and 3.4mm holes
3. Check noise with new cable configuration Alex. B.

Upstream profiler installed on a remotely controlled insertable holder

1. Design/construction: Tim. Parts are ordered. They will arrive March 6th at the earliest ⇒ Profiler will initially be static.
2. Installation/Control . Tom/Hovanes. 1 to 2 weeks to install and test controls once the parts arrive.
3. Survey. Tim/Tom

Survey Tim. 6h

1. Realign photon beam line after bellow installation
2. P.S. detectors
   • coarse detectors
   • high granularity detectors
3. Total Absorption Counter (TAC)
4. LH2/start counter
5. Diamond
6. Photon Polarimeter
7. Solenoid (in case of floor settling)
8. Upstream profiler

Solenoid George/Beni.

1. Power supply maintenance: Danfysik Technician starts Jan 22, finish by Feb 1
2. Problematic connectors: >90% replaced 1 more connector to replace (on order)
3. Power Supply Robustness: Identifying available spares, finish by Feb 27
4. New VCL Flow Controllers: Vendor claims they are fixed, install by Feb 6
5. Cryo trips: Fixed; chart recorder reading flat-lines at 24V
6. Awkward ground fault fuse check: Requirement eliminated, simplify using high amp fuse by Feb 6
7. Annual system maintenance: Complete, all power connections and control terminations re-torqued.
8. Simplified Ramp- up/ down documentation: signed by Feb 20.
9. Defective He Level control (Cryo Group issue): Replace by February 20.

Start Counter Eric. P.

1. Remove the piece of tape in the beam path (to be done while the solid target is installed, ). (Eric P.)
2. Check channels 1,2,22 and 23. Make sure cables are not swapped (Eric P.)
3. Install 1mm CH2 solid target on the nose
4. Reinstallation

FDC Lubomir

1. Chiller back by end of Feb. Sent to factory on 01/15/15 Tim/Tom
2. Implement power-off switch for chiller safety Dave B. Almost ready.
3. (Also for CDC) Analysis of Ar/CO2 gas mixture. Sensor Installation.
4. (Also for CDC) Adjust the gas mixture with less argon. In Fall, it was closer to 57% than the nominal 50%

CDC Beni.

1. All channels are now working (Beni)
2. Cable re-routing Fernando.
   • Rerouting of LV cables is done.
   • Rerouting of HV cables is done. Will be tested next week.
3. Ready for cosmic run (BCal trigger) Replaced a few ADC already. Codi put new firmware in ADC.
4. ADC crashes when 2 events come in too close in time (Codi)
5. Installation of interlock in case air cooling stops. Dave B.

Pair Spec. Alex S.

1. Check 8 channels Fernando/Alex S./Vlad. Arm A: 2 channels to be looked at. Arm B: 6 channels. Will check cables but will not do anything beyond (too risky, given the time left before the run)
2. User-friendly GUI allowing all time monitoring of coinc. rates is almost ready Alex S.

FCal Hovanes

1. Voltage GUI
   • Improve underlying control software. Hovanes is working on it.
   • Improve the GUI. Manuel.
   • Status of the noisy channels ?

BCal Elton

1. Status of the noisy channels (about 20 to 30)?
2. Improvement of the air dryness (N2 flow increases)
3. DAQ check with BCal

TOF

1. Fall run TOF performance and improvements for spring run.
2. Voltage Range Fernando. Done: changed from 1V to 2V.

Shielding

1. Tagger
   • Improve shielding at entrance of tagger magnet. Done
   • shield e- beam flange. Done
     • Shield the bottom of the photon beam line pipe. Done
     • Use "Shadow shield (raise current wall just downstream of tagger magnet). Done
     • Add to the green wall a layer of 4 of polyethylene in the sheet of flame ( from beam line to south wall). Done
     • Fill empty beam-pipe hole in the green wall with polyethylene beads. Done.
   • Shield near tagger rack
2. Collimator cave: shield gamma probe Done

Radiation monitor

1. In order
2. Install new radiation monitors
3. Update readout Hovanes, Pavel D., Dan Sexton
4. Lay cables for 4 new radiation monitoring probes. (Fernando)

Trigger Alex S.

1. 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.
2. Trigger connection to TDC (Beni) Cables made by Chris for redundant timing information. Almost done. Waiting on hardware.
3. Firmware update: Put latest version.
4. Change jumper in distribution board. Done. Will run BCal to check that everything works fine.
5. Define trigger types and strategy for next run. Will require coincidence with FCal.
6. Improve software for scaler readout (Paul M.) Changing method to send data to epics: Run epics IOC on each crates. Should be faster. Will help Hovanes to write necessary software.

DAQ: Multiblock mode run at ≈20 kHz Sergey

1. Problem with FADC. Need a workaround to be able to read at 20kHz
2. Fix F125 firmware problem Cody is working on fixing it by mid-Feb.
3. Run Condition database RCDB interface with DAQ. Done
4. Need to check new CODA version from CODA group. Will test it today or tomorrow. Should be ready for the cosmic test this week.

Online David L.

1. Fix high rate freeze Started working on it.
2. Upgrade O.S. (Red Hat 7) Deferred to after Spring run, except for GLUON01 that is upgraded. Doesn't work when trying to run CSS).
3. Improve software for scaler readout (Paul M.) Changing method to send data to epics.

Accelerator RF timing (Elton/Fernando)

1. Current plan is that MO Hall D signal will be distributed to FCal plateform.
2. Fibers from accelerator are installed (Hall + Tagger)
3. Ordering cables for signal distribution.
4. Everything should be completed in about 2 weeks.

Photon polarimeter

1. Should arrive between mid-February and early March
2. Fiducialize
3. Installation
4. Survey
5. Control

Phone Sprint repeater.

1. Will be tested just before we start taking beam, when all equipments/controls are ready
2. Need to let IT know of the test, for safety purpose (won't be able to call 911/firefigheters/guards from cell phones in the hall) . IT have administration authority to turn repeater on/off. IT contact: Brian Hess.
3. Tom to be the interface with IT.