ESTB 2018/Nov T539+T545

Schedule

Day shift: 9am–9pm /  Night shift : 9pm–9am

Main goals:

• Test 4 RD53A single chip modules with different types of planar sensors from LBNL and SLAC.
• Characterize spatial resolution for difference pixel sizes 50x50 and 25x100, different active thickness 100um and 150um.
• Absolute charge calibration for MIP hits
• Diagnose L1 time dispersion
• Further studies of different RD53A FE types and efficiencies,   
• Commission LBNL cosmic telescope in beam 

Preparation items:

1) Support table/platform behind Caladium to prop up the LBNL cosmic telescope of 1x1 foot cross section 3 feet long (with ~2 feet height adjustment).

2) Wireless boost in the tunnel:  Juan from TestFac has been working on this and will ensure its installation.

3) Beam trigger availability: Will have 2-3 independently controllable beam triggers to work with (TTL or NIM). Will also add a NIM fanout in case needed.     .  

4) We ran short of remote CAM last time. Some more CAMs resurrected ?

5) Need to refresh/document procedure to operate the remote control of PSU->HV. Adding a couple of channels ?

Oct/30:  

Schedule discussion with Carsten:  Thursday 9am beam off to dismantle previous expt. SD will meet Carsten 10am at ESA to start process of moving Caladium back on beam line and decide how long a section of the beam pipe should be taken out (next experiment will need them reinstalled). Will also look for the support platform for LBNL cosmic telescope. Also confirmed we need the Wednesday day shift beam at the end.  

Oct/31:

Our plan declared  at 4:15pm weekly planning meeting. Learnt that the Sunday-Tuesday night shift MEC experiment LU57 is out of the usual ESTB friendly mode for this period with special ultra-stable beam requirement which will take the full 120Hz and not be able to split off 5Hz for ESTB. Friday night shift with XPP is still OK for ESTB, while Saturday-Wednesday Day shifts will have the regular 5Hz 11 GeV beam for ESTB. Friday-Saturday will run with whatever ESTB setup known previously, while Sunday onwards can get dedicated beam tuning from Toni Smith.

Nov/1:  

Preparation started at ESA:

• A remote controllable XY stage lifted into ESTB tunnel behind Caladium. This is intended to support the LBNL cosmic telescope in horizontal position (1x1 foot cross section 4 feet long) and followed by another siclicon sensor Carsten wanted to mount right behind it. This needs a total of ~56 inch length between the two objects. Carl found a metal plate to stack on the top deck to extend the platform longitudinally. The top surface is ~20cm below the beamline. The LBNL telescope can probably lie on the deck with the feet retracted fully up.
• Doug checked the XY drives of the back stage (Beckoffs BKH21: B061 Big Bertha) and they seem to be functional. Y move very slow. Not sure where we are on range. 
• Juan installed wireless router in the tunnel at middle entrance - visitor network strength full bar.
• Placed 7 web cams around Caladium. The AXIS types are back to life again (we missed the power supplies previously).
• One HSIO2 already in place for DUT readout when needed. 

 Nov/2:           

Plan of the day: 

Morning: 

• Move Caladium into beamline and try dummy runs. 
• Drill holes on top plate of the back stage and prepare L anchor on Bosch frame to get ready for mounting the LBNL telescope
• Mount Carsten's silicon sensor on mini stage onto the back stage   
• Fix focus of two AXIS web cams (13,14). 
• Check EPICS remote control of PSUs and possibly add some channels.
• Exercise backstage XY drive to map out the adjustable range
• Locate all 3 unused DUT DAQ Ethernet lines and test+tag them 
• Locate additional beam trigger cable(s) and install NIM fanout and NIM-TTL in case more separate triggers needed  

Afternoon:

• LBNL party arrives ~1pm after fueled with dim sim
• 2-3pm: half of LBNL party in 116PRA. Others+SLAC continue installation
• 3:45pm ESTB orientation (AD106 training) for all new comers
• Dry runs without beam

Activities:

Caladium beamline move postponed until first beam run through. Debated whether that needs to be primary beam or not. Eventually MCC will just try secondary to avoid the need of RP survey. 

Dummy runs with Caladium only worked out smoothly ex expected.

Carsten's (actually Chris Kenney's sensor) silicon sensor will be mounted near the dump area instead and not interfering with our setup.

LBNL party arrived 10min before the controlled access search so just moved some equipment into ESA and then exit to allow the search.

ESTB orientation AD106 done by Keith for 6 new people.

RD53A test setup moved along but not completely done yet until tomorrow. The beam trigger is Teed to fanout several copy of it for the L1 timing tests so that TLU entrance signal is slightly delayed than usual. Cosmic telescope modules are mounted but powering/readout not yet connected. One LV banana plug looks like is missing the tightening screw. 

The backstage X motor exercised and looked like we can move all the way between the two stoppers with at least 50cm worth of travel range. We moved the stage to be ~6-7cm from the wall side stopper so that the vertical post on the stage is also on the wall side with 5cm clearance from beam. The stage drive can move +x to bring the cosmic telescope back to beam line when the telescope feet are placed o nthe marked positions.   

~10pm: exited ESA to let MCC try secondary beam.

10:30pm MCC thought they are close to be done with tuning so we started to move Caladium coarse X in reduced x direction and running the Caladium only readout. Before reaching the beam spot, the secondary scatter was ~50 particles/shot but once beam spot came into the frame, that turned to be more like 2000/crossing. Beam spot was also very wide in X ( more than the 2cm MIMOSA aperture). Asked MCC to reduce rate and spot size. a few tries didn't make much impression until a move to close down SO10 to -0.5. That brought the rate down to ~100 particles/crossing. Beam spot is filling good fraction of aperture ans looks like a good tuning setup to start with tomorrow. The Caladium XYstage X/Ycoarse RBV=115.4/3.8mm (Y is very close to min limit). Run 336 tuning beam spot picture below. 

Done for tonight      

 Nov/3: 

 Plan of the day: 

 9am-9pm Day shift will continue with 5Hz beam running with XPP as primary expt. We expect to start ~9am for access to continue towards full setup for RD53A and cosmic telescope then run until 9pm.