AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40
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Message ID: 720     Entry time: Wed Oct 15 09:41:24 2025
Author: JB, GB, MP 
Subject: 207Bi source threshold tests 
We have dismounted the AIDA stack and bPlast and realigned the cables so that they can fit into the adapters.

The plan for the next couple days is the following:

- Alignment -- done
- Remount cable -- done
- Fix position w/o bPlast mounted -- done
- Remount bracket for the last stage -- done
- Remount AIDA 1 & 2 and the 207Bi source with the source holder -- done
- Mount the snout and take data -- we wait till next week Monday when the heat exchanger is active again. (ongoing)

The current setup at the end of work is that the snout is mount with a bPlast (uncabled) and 2 AIDA layers at the regular spaced position with a 207Bi source down stream, as can be seen in the previous elog. The source is ~1 cm away from the middle AIDA wafer.

Currently what is cabled:

- Signal out from the detector
- Bias daisy chain

Still to be cabled:

- HV cable
- Grounding
- Pulser

Additional info on the source position:
- the source is at ~9.6 mm distance from the downstream detector
- the source is placed at the centre of the middle wafer: 12.25 cm in x, 4.75 cm in y
- the radius of the source is ~1.5 mm
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