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Event Log

  • May/5:
    • Plugged in the beam trigger BNC cable to the TLU PMT trigger and ready for beam.
    • MCC complained not all doors were shut. Both small door and the fence gate in the ESA entrance alley need to be closed. Hall light all went dark after doors closed. Tonee brought back tunnel lights from MCC upon seeing our E-mail, so we can now see all the web cams again. 
    • First attempt to send beam. Tonee tuned to ~4 electrons/crossing with 11 GeV beam @5Hz.
    • Starting Caladium position was close to be centered vertically but ~10cm off horizontally (towards ESA entrance side). Mike helped to get the position adjustments with his new Beckoff 26 (B061 Calladium) panel (Motors section). Moved at ~10mm steps to "RBV from step: 101.72mm" (with >) which the overhead CAM05 shows is moving away from ESA entrance as hoped.
    • Mike set the trigger to chan 7 (ESA User 3 TTL) initially but that didn't trigger EUDAQ. He switched that cable to chan 10 (Silicon Tracker - Calladium (NIM)) and used the last Jan/2016 setting of width=200, delay=-104950. This got beam triggers going in EUDAQ and datataking with ni_coins.cfg now getting real beam hits on Calladium.
    • Run 148-150 showing a rectangular beam spot width of (DX,DY) ~ (120,230) which is ~(2mm,4mm). (MIMOSA has 18.4um square pixels with X,Y range 1152,576). The centroid of the front 3 planes are at (180,280), and the back 3 planes are at (330,140). The front and back plane groups are ~70cm apart in Z. The tilt is (+150,-140) or (2.8mm,-2.6mm), which is ~4mrad tilt. There is no vertical tilt adjustment but there is a manual knob for horizontal tilt (around Y-axis).         
    • Stopped Run 150. Attempt to move telescope. Y fine abs position 45.0->43.7mm. X fine 65.0->59.5mm these didn't matter (they are for DUT only). Coarse Y set=0. bottomed out but still not quite low enough. Coarse X abs pos 100 to 96.
    • Tried to get operator to enlarge the beam spot but nothing seemed to make much difference, but upon restart after access, the spot went to almost full aperture of 1.5mm wide in X and 0.5mm high in Y. No clear what helped that.
    • Martin checked the double chip module threshold scan with 50V bias at Lab1. Threshold and noise very uniform with only sprinkle of misbehaving pixels.  
    • Moved in DUT hardware with an access:
      • New reference planar 2-chip module 930304 installed as DUT in vertical frame directly mounted on the rotation stage.
      • New shield heavy gauge long LV cable to PSU with Vset=1.5 (lab test showed currents up to 0.65A). This is a special direct power module requires Vset not exceeding 1.5V.
      • Threshold scan worked well in Lab1 with a -50V HV, but had trouble to turn on the BK Precision 1697 supply (+ve and GND ganged to supply -ve HV) which could only go up to 40V max in any case (Martin thinks unirradiated planar may still need ~60V to be sure).
      • A new HSIO-II installed on top shelf with the new 18 port RJ45 pixel interface for DUT DAQ. Its 18th port is connected to TLU DUT 1.     
      • Two output data channels of the pixel module connected to HSIO-II interface ch 0 and 1 respectively, but swapped in green cable from web cam and orange cable on a table (not sure if it works) for data links.
      • Don't have proper CAT6 cables to ground HSIO-II against supplies. Still needs a dedicated ground cable from HSIO-II to PSU. 
      • A new Sun server from Lab1 packaged to serve as DUT DAQ host node is shipped into ESA and installed into the Calladium rack. It comes in as a replacement node for esa-user12 172.27.104.42 and with same common operation user account tbslac as for esa-user02. The private ethernet link to HSIO-II recognizes HSIO-II as rce0. Boot up has some trouble in ESA: not able to startx.   
      •  A microUSB hub added to lead out the single USB port on esa-user12 for 3 different purposes: keyboard, mouse and microUSB link to HSIO-II UART port.     
    • End run 164 before beam went away. Saved a copy of monitoring plots at  /home/tfuser/Desktop/2016May_onlinemon//run164.root which probably contains plots from Runs 162-164.
  • May/6:
    • Matthias looking into the why the new Sun server (esadutdaq1 172.27.104.45) doesn't come up in 172.27.104.x ESA-RESTRICTED subnet with Mike. First simple problem found was the two ethernet connections on the Sun server was swapped. Network should be on top port, RCE link should on bottom port. For the 2nd more exomplex issue, we traced the two ethernet cables from Mike for Calladium rack: Cable 2 connected to Sun server is on Belgen patch panel ch 19; cable 3 connected to NI crate is on Belgen ch 20. In the SWH-B061 rack in the middle ESA, we saw Belgen ch 20 is connected to SW port 32 which is on the 104 ESA-Restricted subnet so that the NI crate has been OK all along. However, Belgen ch 19 was connected to SW port 21 which is on the 100 ESATESTFAC subnet. This also explained why esa-user02 appeared to have worked, but we could not ping NI crate. Once Belgen ch 19 is redirected to SW port 33, everything worked. There is still an issue with the Sun server esadutdaq1 so that the console can only be a dumb monitor but mouse and X don't work.  
    • Installed a NIM crate with Dual port negative 0-2KV HV supply. Used AVO on Lemo monitoring port to guide he setting to -60V on ch A for sensor bias.       
    • Added ground clip between HSIO-II DGND and LV supply -ve GND. Added a LEMO cable between HSIO-2 LEOM ch-1 and TLU TTL trig1 for TLU ground (would not need this if the DUT producer cables was a full CAT6 with ground plate).
    • Created a new configuration /home/tfuser/eudaq/conf/SLAC_1dut_FE14B.conf for the 2-chip module 930304. DUT config/calibration taken from moduleconfig/93-04-03/configs on esadutdaq1 under the tbslac account.     
    • Initial DUT datataking with EUDAQ worked but stone quiet with no hits (not timed in yet).
    • Started DUT timing scan by requesting a hotter beam of ~100 hit pixels / crossing. Trigger ch 11 initlal delay=-104950. DUT DAQ window is 16*25ns and we used 300ns steps. going +ve to -94500 saw nothing, but going down to -110488 settled the DUT data on time sample 8.
    • Beam spot looks like 100x250um=25mm wide in X and 100x50um=5mm tall in Y, horizontally very well centered between the two FE-I4 chips in the middle of the sensor. With anticipation of titled data across most of the Y range, we make 2.5mm Y adjustments between runs to cover the full  Y range in this central X band. DUT getting ~7 pixels hit (~5 particles) per event.  Runs 176-186, varying between 10K events per run earlier to 3K events towards the end to hurry before beam off.          
    • Some operational notes: event data files not closing properly when reached max event limit. Changed config max events from 10K to 15K. Every time ended a run, must configure again before restart another run or there will be no triggers. 
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