[Halld-jlab] Hall Staff Meeting Notes, January 13, 2014

[Mark Ito]

Folks,

Find the notes below and at:

https://halldweb1.jlab.org/wiki/index.php/Private:Hall_D_Staff_Meeting,_January_13,_2014 
.

   -- Mark
____________________________________

Present: Fernando Barbosa, Eugene Chudakov (chair), Mark Dalton,
Hovanes Egiyan, Mark Ito, David Lawrence, John Leckey, Lubomir
Pentchev, Sergey Pozdniakov, Dmitry Romanov, Patrizia Rossi, Elton
Smith, Sascha Somov, Orlando Soto, Simon Taylor, Elliott Wolin, Beni
Zihlmann

=Announcements, Eugene=

* Budget: FY14 fixed, FY15 submitted, FY16 and beyond under discussion
* Beam delivery in April: operations saying no, project saying yes

=Safety, Patrizia=

* recent incident where material in RadCon area moved without 
authorization, in the Physics Storage Building
** additional administrative controls may be coming

=FDC, Lubomir=

* first quadrant completely cabled, working on the second
* one card on third package, problem with conductive tape continuity to 
cathode
** reduced to one channel now
* several pre-amps showing long tails in pulses, waiting for better 
grounding scheme
* HV operation:
** using 90/10 now, less stable than nominal 40/60
** one unstable section, others have occasional trips
** lower flow rate increases the trip rate
** new gas flowing now
* Beni: using random trigger to test at end of last week, see signals, 
should be done middle of March
* Fernando: new firmware can be loaded via VME

=CDC, Beni=

* plan to set-up cosmic trigger, try to get ready for students, a 
starting point for them

=BCal, Elton=

* most of hardware installation done
* N<sub>2</sub> system purging
* cooling not connected yet
* introducing: Orlando Soto from Santa Maria, working on slow control of 
bias voltages with Hovanes

=FCal, John=

* reprogramming bases to be done
* should have HV by end of this week
* DAQ is ready
** take data tomorrow with TI pulser
** can now take data and see them in DAQ
* LED test next: plugged in and installed, tests PMTs
* after that: self-triggering from glass
* Sascha has 2 CTP's w/ latest firmware, Ben will check flash CTP-SSP 
interface

=Tagger Hall, Eugene=

* magnet mapping going smoothly
* 1/4 done, there are four positions
* installing photon beam pipe at exit of magnet
* rack decision yet to be made

= Electronics, Fernando=

* cabling
** Chris, Nick, and 2 from the FEL on the job
** ready for CDC by mid-March
** pair spectrometer almost complete, waiting for box where electronics 
mounted
* flash 125
** a bottleneck, problem with manufacturer QA
** need another run, 10 missing, may go to different company
** Cody almost finished with programming for VME-based download
* Alam left today, he finished pulser project
* power
** under platform, level 1 will be done in a month
** then on to trigger crates (fiber is ready)
* network switches all in

=Online Data Challenge, David=

* target date is May 1
* take simulation data and feed it to the ROCs
* explore recommendation from review for event tagging
* Sascha: trigger calibration will be done by Fall

=Calibration, Simon=

* CDC will be calibrated with BCal trigger
* FDC alignment feasibility study underway
* John: for FCAL cosmics not critical

=Solenoid Controls, Elliott=

* Effort is ramping up in preparation for going cold in the Spring

=RF Timing Signal, Elton=

* Alam has been working on board to pre-scale the RF accelerator signal
* cable will come from the accelerator and to got the tagger hall and Hall D
* 10 outputs for each signal
* 500 MHz or 250 MHz, either will work
* boards will be made here