ESTB Dec/9-12/2018 T539 (sharing T577 period)

Schedule

Main Goal

The Nov/2018 T539+T545 session had reduced beam time due to one primary LCLS experiment didn't permit the 5 Hz parasitic beam to ESTB. A makeup shared session was negotiated during this period with T577 (Moller calorimeter) also using secondary beam. The main goals  of this test session: 

  1) Collecting similar data as November session for the two SLAC RD53A modules with different active silicon thicknesses from the two LBNL modules. These modules didn't get beam time in November due to truncated session.

  2) An independent examination of the L1A time distribution with the SLAC HSIO2+FEB readout. Data taken so far with YARR all exhibited a very broad distribution. 

Preparation

Caladium was moved into place at the start of T577 and remote driven to far wall with 1-2 inch clearance from beam line so that we can remote drive it back to beam line.

A97 had 1000e tuning from Timon on YARR during last period. Checked with RCE+FEB calibration looking OK

A97	Thresholds	Noise map
YARR
HSIO2+FEB

  B53 had brief tests by Aleksandra before sent to SLAC

B53	Thresholds	Noise map
YARR
HSIO2+FEB

Installation Inventory

• RD53A module on DUT mounting frame
• FEB board + 12V supply
• HSIO2 (C02) with 12V supply
• FEB-HSIO2 QSFP->LS fiber
• DisplayPort cable
• Agilent LV supply with GPIB controller, LV cable to FEB. Ethernet cable to Fanless box.
• Keithley HV
• TLU box with its voltage supply + square USB link to Fanless box
• Additional NIM discriminator from ESA for better trigger fanout cleanup + LEMO cables
• Tie-wrap mounting for FEB

Dec/10   Night shift  

Zijun, Ke, SD

9:30pm  T577 wrapping up last scan. Since we would like to go to ~100e/pulse for tuning first, T577 decided to turn off and moved out of beamline.

9:45pm  Access to install. New setup needs HSIO2 DTM to be connected to the ESA-RESTRICTED network to run YARRproducer on it. The network switch ports are completely full ! Fanless box esadutdaq1 was taken out of the network with it ethernet cable on Belden Ch-8 disconnected. Took a while to find Belden ch-11 was not connected to anything so disconnected it and used its switch port for ch-8 to bring back Fanless box. DTM IP is set to the 104.52 as the YARR DAQ node used to be. The gateway and netmask also needs to be exactly right to appear properly in the network: 

Trigger channel problem: while Trigger ch-11 (HGTD) has a healthy TTL signal as usual, our regular Caladium Trigger ch-10 (NIM) appeared to be totally dead. Sending TRG11 to a TTL->NIM converter didn't get any NIM output and eventually realized that the NIM<->TTL converter is a bad module. Grabbed another NIM<->TTL from ESA upstairs and this finally worked. We are not driving the TLU trigger from TRG11 after TTL->NIM. 

4:45am Asked for beam but MCC couldn't get it going - cooling water for kicker magnet too cold ! MCC tried several times with no success. 

10:30am  Still cannot turn on magnet. Give up. Moved Caladium out of beam line for T577 to take over day shift. 

Dec/11  Night shift

Zijun, Ke, SD 

9:00pm  T577 needs another 2 hours to wrap up this round of tests until 11pm.  Tonee found space heater for the kicker  magnet so hopefully access is no longer as ,much of a risk, but we still need to avoid long access. 

10:30pm  Running parasitically outside beam. YARRproducer is strobing with beam trigger correctly building events. Also saw some noise hits in the data (yesterday's tests had no hits at all which sounded a bit suspicious but could be noise just very low still). 

00:00  T577 done for the night. Moved in Caladium for beam with RD53A A97 as DUT at 0 degree angle (perpendicular), and mounted with RD53A X = Calladium X. 

00:30  Talk to operator to get higher particle rate for latency scan. Open up slit had rather little effect in brining update but opening up collimator had more desired change to increase the beam spot from 2x2mm to covering about half of MIMOSA plane, and 80 pixel hits/MIMOSA (~50 particles). 

00:35  LCLS primary experiment wants to change primary beam energy. Beam off temporarily, but will return for same 8 GeV secondary setup for ESTB.