Private:Hall D Staff Meeting, November 8, 2010 Present: Eugene Chudakov (chair), Hovanes Egiyan, Mark Ito, Lubomir Pentchev, Yi Qiang, Dmitry Romanov, Elton Smith, Sasha Somov, Simon Taylor, Tim Whitlatch, Elliott Wolin, Beni Zihlmann Eugene * appraisal cycle about to finish, a few more folks to talk to * we need to start on Estimated Time of Completion statement (ETC), must put in changes in plan/schedule * electronics tracking: Sascha will take some responsibility * next year: a lot of FTE's for testing electronics; needs to be reshuffled * most BIA accounts cancelled, BIAGRP, BIAOLC, BIATRG * need to tell Physics about our manpower needs Elliott * last week got OSP to go cold * started flow of cryogens to coil 1 * some problems, bad sensor, PID loops needed tuning * web monitoring pages working, will be linked to wiki * another OSP has to be done, tech's part of it, checklists * HMI screens doing well, Yi's work * log screens doing well, Hovanes's work * test plan revised * PLC programs working well George (in absentia) * coil three is ready and can be shipped soon from IUCO Elton * SiPM contract to Hamamatsu should be awarded in next few days * finalizing design of electronics and cooling for BCAL + new engineer in Detector Group will work on this + technical issues: o lightguides o geometry o several ciruit boards o cooling plate to stabilize temperature o light tightness o environmental control: dry air, nitrogen * first article SiPM test pieces in by Feb. + testing being planned + Carl Zorn thinking about set-up + manpower plan needed + Elton working on schedule and cost estimate * FCAL + last shipment of PMT's should have been shipped by now o ones that have arrived look good visually * BCAL + fiber shipments from Kuraray coming in + modules are shipping regularly + Santa Maria planning for SiPM testing and light guide construction * replacemnet solenoid: + design goals document done, sent to procurement + also sent to Minervini(?) at MIT o phone conference with him on Wednesday Simon * understanding errors in tracking, update given at physics meeting + some things are better, removed some bias * looking at gas choices + depending on argon fraction, changes in smearing * some success with using multiple hits on tracks to calculate vertex time Hovanes * working on solenoid test controls + gui's for monitoring PLC variables + EPICS-PLC interface * worked on set-up of pager application + cooling slower than warm-up, unplanned warm-ups needs to be identified quickly * direct measurement of polarization of photon beam + detectors downstream of pair spectrometer converter studied + need very thin converter, 10 microns of carbon, because of multiple scattering + detector will have background because of converter o this a trigger issue + put detector after pair spectrometer magnet with some intervening field as well Beni * CDC review: + report written, waiting on input from Bruce Lenzer + tried to address all points raised in report, with time-lines * CMU (from Tim) + getting ready to glue some straws... + checked surface resistance, 5 times greater than nominal, found a group with this defect, not all have it * FDC + took data with flash ADC, use FADC for timing, measure resolution + put algorithm on ROC directly + get about 30% worse than with TDC's, not 150 microns, but 180 microns * using laser to find position of wires, several options tested Yi * worked on HMS screens for coil test + adding features, Mark Wissmann modifying PLC program * data logging working at 0.5 Hz, can go at 10 Hz with current hardware * fast DAQ, using USB device, ordered, ~kHz goal * SiPM, difference in baseline as well as recovery rate at higher temperature, plan to study this =Sascha * Went to DNP meeting, lots of astrophysics and heavy ion physics + instrumentation talk: time difference between two pulses, few hundred ps resolution with 100 MHz clock + homeland security + medical physics, isotope generation * Met with Lei Guo FIU, he has GlueX plans + use microstrips for polarization measurements, possible problems reported * finalizing design of vacuum chamber, looking at background, modified geometry, no overlapping volumes * started writing description of neutron background studies with FLUKA * looking at alternative instrumentation of microscope: + multi-anode PMT + single tubes, 1/2 inch tubes, same as Franz Klein is using with the fixed array * dose studies for microscope + 200 mRem/hour + 50 Rem => 50 hours, current increases by factor 5 + 2 main sources o magnet o scattering from pipe + if pipe removed, background goes down by 3 + shield microscope, thermalize neutrons, being studied + dark current requirement not done yet Tim * Hall D: Nov. 29, ready for equipment (RFE) * COO needs to be drawn up * Survey will install monuments * welding on ??? tubes to be done, reinforced stainless * cryogenics design by cryo group * tagger magnet and coil procurement package at Procurement, should be on street * coil 4 will be moved next week to engineering staging building * BCAL wedges already there * collimator cave stands work in progress * work with sasha on ??? * manpower: + offer to engineer declined + techs on book(?) + put in for couple for techs * ETC work to be done * appraisals being worked on * straw tubes: plastic feed-throughs in * change request for Virginia funds for FDC equipment being prepared * list for vehicles and man lifts has been turned in * platform designs in progress, need something in by end of week to Facilities Management * pair spectrometer magnet shipping plan needed, Nov. 29 there will be space! Mark * Calibration Database document released + Elton: does this get reviewed/signed-off-on? What about other software packages? * BIAOLC eliminated: no formal project management for offline software from outside Hall D + Eugene: we should institute some project tracking ourselves * new tagged release released * UMass MOU: with Allison Lung, then on to Concurrence Chain * FSU MOU: FSU has signed, now getting JLab signatures Lubomir * everything is as expected! * parts are coming in, no clean room: storage an issue, inspection space an issue * prototype: bigger signal on top strip vs. bottom strip + garfield simulation: 1 mm offset in wire position * strip resolution depends on number of hits allowed to be used + event size implication: main contribution to event size from FDC strips + three strips per hit vs. 5 per hit, better with 5 + Simon put somthing in FDC logbook: average 4 or 5 hits + noise level 10 mV or more Dmitry * Calibration database C++-based API mostly done * working on: + console tools + integrating with JANA + writing test suite Retrieved from "http://www.jlab.org/Hall-D/software/wiki/index.php/Private:Hall_D_Staff_Meeting%2C_November_8%2C_2010"