[Halld-jlab] Hall D Staff Meeting Notes, April 21, 2014
Mark Ito
marki at jlab.org
Tue Apr 22 11:47:05 EDT 2014
https://halldweb1.jlab.org/wiki/index.php/Private:Hall_D_Staff_Meeting,_April_21,_2014
-- Mark
___________________________________________________
Private:Hall D Staff Meeting, April 21, 2014
Present: Fernando Barbosa, Eugene Chudakov (chair), Alexandre Deur,
Hovanes Egiyan, Sergey Furletov, Nerses Gevorgyan, Mark Ito, Vanik
Kakoyan, David Lawrence, Lubomir Pentchev, Sergey Pozdniakov, Dmitry
Romanov, Patrizia Rossi, Elton Smith, Sascha Somov, Simon Taylor, Tim
Whitlatch, Beni Zihlmann
Eugene
* we have a budget for materials not covered under 12 GeV, e. g.,
computing equipment
* we will be moving to Wing A, downstairs, beginning of May
Sergey F.
* working on system to manage all of the DAQ components, hardware and
software processes, centrally
David
* updated translation tables in CCDB to use new ROC ID scheme
* creating HD ops accounts, separate for different detector systems
* testing Sergey F.'s new system
* wiki will be upgraded on Wednesday
* there was a joint meeting of Open House logistics committee and
programming committee
+ parking information etc. is forthcoming
+ site clean-up: May 6-9
* working on simulations for CPP
* working on farm manager system
Tim
* start counter design complete
+ out for fabrication, hub done by end of week
+ then fit checks with Fernando
* target
+ review May 8, design and fabrication
+ installation cart in house, load test tomorrow
* TOF surveyed, need decision on adjusting position
+ cable tray needed still
* electrical power work on tagger racks
* work on-going on beamline and vacuum controls
* commissioning target design done
+ cart is next
+ some parts already in hand
* solenoid PS, loose screw found
+ issue with slew rate being worked on
* gas system, tomorrow leak check
Fernando
* start counter
+ finishing tests, done by end of week
+ fit test next
* TOF ready to start cabling
* CDC all cabled, power/noise look good, waiting for gas
* air cooling on CDC
+ temp in Hall was 75 F, should be 70 F, Facilities will
decrease set-point
Sergey P.
* optimized code for remote control of registers on ROCs
* improved DB features: locations, slots, sending emails bout board
needing service
* TOF crates update with missing boards, bottom crate did not have
power cord
* need 2 more computers in Hall, also 2 new stands
* 5 FADC-250 board changed out, Hai Dong took them
Sascha
* finalized configuration file structure for FCAL and BCAL
+ both have same read-out list
+ introducing check on registers; check board initialized
properly, ready this week
* FCAL and BCAL have working CODA components now, optical links
re-established
* BCAL cosmic trigger work: TS not initialized properly
* SSP, GTP functionality not ready yet
* pair spectrometer in EEL 126, Wiener crate there
+ use source to scan files, will start tomorrow
+ box assembled, the counters fit
* working on paper for IEEE on hodoscope
Alexandre
* pair spectrometer mapping finalized
+ possible discrepancy between measured current and that set on
front panel
+ waiting for final report from Survey
+ 2 mappings done
1. from downstream, 2D
2. from upstream 1D
o some differences seen
+ angle variation on probe negligible
+ Tosca different from measurement, wrong steel used
+ working on procedure operate magnet
* several magnets in arc need insulation
Lubomir
* tests of FDC with scope all done
+ kept history of problems with strip channels
o 50 channels (0.4%) with problems
+ all wires OK
+ Beni;s mini-DAQ finds problems too, correlates well
o still some where scope sees problem and DAQ does not and
also the reverse
# former: needs trigger
# latter: not understood
* gas system next
+ pressure test tomorrow
+ flushing procedures run through, showed need for labels
* FDC alignment
+ Bill's scheme works for one cathode
+ model developed for how cathodes are tensioned: pitch plus
position
+ see differences in splice-seam geometry; glue not cured enough
+ analyzing test of 3rd packages
+ 200 micron variation seen end to end
* FDC and CDC moved 7 mm downstream
+ Beni: hinges not accounted for, rails too short
+ yaw and pitch good to 1.e-4 degrees, roll at 2% of a degree
+ connections checked after pushing, look good
Vanik
Arrived today!
Simon
* chamber alignment results shown at calibration meeting
+ get the rotation angle of cathode plane
* studying dE/dx in CDC for dynamic range setting with Naomi
+ some parameters in code hard coded, converting to CCDB
* worked on simulations for eta program, presented at physics meeting
Beni
* CDC cabled
+ pre-amp temperature test: lower than expected with no cooling
+ AC turns to heater in winter, scheme need re-thinking
* new system-specific ops accounts, migrating to them
* CDC read-out must be started
+ firmware need to get newest version, can be done by VME
* channel number scheme for Flash-125 does not start with 0 in
read-out library
* gas system procedures need adjustment
Mark
* data challenge winding down except for the open science grid
* OSG down now to update SRM
* succeeded in using the SRM to transfer a file to JLab
* offline meeting: discussed how to deploy data from data challenge
Elton
* BCAL upstream and downstream working now
+ slow controls working well, some mods for guis will be
suggested
+ LED pulser system working well
+ using north DAQ, setting pedestals
+ next: more LED testing and cosmics
+ Orlando Soto working on on SiPM-at-a-time test control
* FCAL working well
+ some trouble with flashes, 5 swapped out
* experimental readiness review, July 1-2
+ ESAD in draft form, needs sections on solenoid, gas system,
drift chambers, and electronics
+ plan to use ACC hot-check-out system tool, collecting example
items to present to ACC
+ will need shift instructions and manuals
+ will need online procedures
Dmitry
* leaves next week!
* trigger database
+ will leave alpha version
+ Sascha will supply parser of board info in the next few days
* CCDB version 1.0 ready for testing
Hovanes
* fiber installed by contractor
+ Mark not here to check
+ tomorrow meeting with Computer Center (CC)
+ conduits need running
* 24 copper cables installed from counting house to Hall
+ should not normally be connected
+ if needed contact Hovanes or Fernando
* Facilities will move fire extinguisher, recover stolen chair
+ Elton notes that fire extinguisher positions need to be
accurate in emergency management guide
* checked radiator moving device, Tom will install
* Slava and H. put pair converter stand in FEL room
+ Eugene: need FSD system for radiator, some design may be
needed
* radiator stick made: 0.8, 30, 100 micron Al foil and 20 micron wire
for scans
* in contact with John Frye about mounting of beam profiler
* gas system control: Dave Butler working them, Mike Staib working on
controls GUI
* meet with ACC on controls work for us
+ tagger magnet PS
+ NMR for tagger magnet
* Nerses working on voltage alarms, changing names in EPICS for FDC,
then can be sent for archiving
* CSS: new version not backward compatible with scripts for GUI,
class for channel access changed
* BCAL voltages: feed-back from Elton on controls
* Met with Elton, Hai, Fernando, and ACC on RF signal to Hall D
+ new scheme delivers signal via fiber, fiber already installed,
allegedly
+ need to buy equipment to receive it, 4 k$
+ will need to redesign pre-scaler that Alam designed
+ signal at 10 MHz, jitter better than 1 ps
--
Mark M. Ito, Jefferson Lab, marki at jlab.org, (757)269-5295
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