Studies on Detector and Commissioning at CALICE Technical Meeting
Investigating issues with the mechanical structure and power supply of a detector, this study discusses disassembly, relocation, and potential solutions to address the BCID problem. Recommendations include adding more SLABs and implementing mechanical elements for stability. Commissioning of the SLAB without power showcases various contacts and voltages for proper functionality.
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Studies on detector and commissioning CALICE Technical meeting J. NANNI LLR - 24/05/17
Studies on detector 2100 BCID 2100 BCID problem problem Detector mecanic struture disassemble: Bottom plate, Side plate, Back plate New mecanic elements (on hold): Front panel, Cable hole, Cover 3 SLABs in structure: 16, 22, 18 1 SLAB out: 15 nanni@llr.in2p3.fr - LLR - 24/05/17 2
Studies on detector 2100 BCID 2100 BCID problem problem SLAB 22 SLAB 16 SLAB 15 SLAB 18 nanni@llr.in2p3.fr - LLR - 24/05/17 3
Studies on detector 2100 BCID 2100 BCID problem problem Move SLAB 15 in the structure SLAB 22 SLAB 16 SLAB 18 SLAB 15 Disconnection of power supply connector from patch panel and move SLAB 15 inside the structure reduce the problem nanni@llr.in2p3.fr - LLR - 24/05/17 4
Studies on detector 2100 BCID 2100 BCID problem problem Add 2 more SLABS 19, 21 SLAB 16 SLAB 22 SLAB 15 SLAB 18 SLAB 19 SLAB 21 2100 BCID problem come back nanni@llr.in2p3.fr - LLR - 24/05/17 5
Studies on detector 2100 BCID 2100 BCID problem problem CONCLUSION: 2100 BCID not understand, Conductor effect in mechanical structure, Maybe also in power supply patch panel IDEAS to solve this problem: Put capton on the bottom plate, Put capton on the SLAB cover plate (face of electronics), Add more mechanical element in plastic matter, nanni@llr.in2p3.fr - LLR - 24/05/17 6
SLAB Commissioning Without Without power power supply supply Contact between gnd, HV on bottom face of PCB Contact of resistor and DVdd, SlowControl S4 and S16, Readout return S9 and S21, Shortcut between Avdd, DVdd and gnd, nanni@llr.in2p3.fr - LLR - 24/05/17 7
SLAB Commissioning Low Low voltage ON voltage ON DIF: Green led DS1 on DIF (ON OFF), Blue LED blinking, 1.2V and 2.5V on J3 and J4, SMB and FEV: 3.45V and 3.27V on AVdd and DVdd Configure: Red light on DIF (OFF ON OFF), Blue led stay ON nanni@llr.in2p3.fr - LLR - 24/05/17 8
SLAB Commissioning Acquisition (High voltage OFF Acquisition (High voltage OFF ON) ON) SLAB open (no cover): 1st acquisition, 3min, all chips answered Cover SLAB: 2nd acquisition, 3min, all chips answered High voltage ON: Wait few minutes 3rdacquisition, 3min, all chips answered Place copper: 4th acquisition, 3min, all chips answered nanni@llr.in2p3.fr - LLR - 24/05/17 9
SLAB Commissioning Final Final commissioning commissioning Find Noisy: Goal 230, step 5, ratio 1% Cut noisy chanel Scurves by 64 Range 170-270, step 5, acq_t 3min Find threshold by chip Cosmic run No BCID problem Cosmic particul detected nanni@llr.in2p3.fr - LLR - 24/05/17 10
