Preparation of uniform prototype

mercredi 28 janv. 2026, 10:00 → 12:05 Europe/Paris

Workshop (IJCLab)

https://cern.zoom.us/j/

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64008143327?pwd=ndOmKBQh1HxAkAsQH6jl6Vl4bcFATm.1 

Participants

Roman (RPL), Dominique (DBN), Jihane (JMI), Jimmy (JJT), Taikan (TSA), Jérôme (JNI), Vincent (VBY)

Test FEV boards (DBN)

13 boards tested: 11 OK straight away. 2 with minor resoldering.

Difference with previous production :

• ⊃ Diode for the analogue probes
• resistor for TDC as discussed.

Tested with signal (ASIC readout), No test with probes.

Shipped to IFIC last Friday (23/01)

SLBoard + End-Plugs

18 end-plug boards produced.

Modification of old SLBoards and spares to be done:

• LDO :only for SLBoard only, direct feeding of LV to the ASUs
• Analogue probe connects to the 2nd ADC of the MAX10 FPGA
  • 1 ADC for the AVDD, 1 for Analogue probe (instead DVDD, useless)
• ⚠ ➞ No more compatible with old slabs
  • Keep 2 for COB and 1 FEV n° 30
• 6-7 spares available

 

Discussion: getting rid of extenders for the 2 COBs and FEV10 n°30 

Mechanics (RPL for Alice)

Sliders and Structure design withMechanical Engineers: Gregory (?) / Alexandre Gonin

Wait for the 2 (old) boards from IFIC before producing new sliders.

Maybe will get a Mechanical Technical leader for project (TBC).

Metrology

Done. No obvious defects, but numbers have to be extracted.

Wafers testing

3+1 persons for this : Ana Torrento + Hossan (tech. , HGTD), Xin, Jesus.

22 "LLR Wafers" / 3 per days ➞ 7 working days, but will take some time for adjustments ➞ February.

"will not delay the assembly"

Planning February

Testing new ASUs ≥ 9–10 February

• Analogue probe scans + source

People: Xin + Jesus + Hao + Yukun + Andre?

IFIC should have 2 ASUs produced in the 1st 10 days in February (source: mail from Adrián)

If 2 / weeks ➞ all (15) one by April... 

Mail from Adrián

The status of IFIC is that we are ready to assemble 2 ASUs during the first 10 days of February, using the monocomponent glue. We will send them to IJClab and when they are tested we are ready to discuss a detailed plan for the next steps. As agreed in the last meetings.

We have:

• three 3M sheets perforated (one for testing, 2 for glueing)
• enough sensors
• adapted jigs 
• enough glue (monocomponent) for the tests and 2 ASU production
• material for quick test of the ASUs after assembly.

We won´t perform any metrology since there is not time for that.

 

DAQ (JMI)

Implementation of TDC’s configurations

• Auto-Gain + Fixed Gain + AutoGain Threshold.

TDC decoding

• First storage as is
• Discussion on plots in a 2nd stage

 

BT Dates

June 17th to July 1st

Probably share with other DRDCalo activity (CRILIN, groups from Frascati + ??): Give 1st week ? 3–4 days ?

Concept of a plan: Install both calorimeters on Wed 17/6 + run common μ calib.

How long running ?

• Common Shifts ? In case of down time
• FCC week the week before : practical for Taikan.

Running plan:

first standard condition (e− medium E), then strongest conditions (high E e−)

Dedicated meeting in February.

AoB

Next meeting: week 16th of February

10:00 → 10:15 Status and any blocking item ?