Fridge Status :
Removed 100mK shield and tower from fridge
Tilt the tower in the cleanroom area to access the pin slot
Used the regular solder wire but pin is not holding well to the platform. One reason is the whole pad is not accessible in the assembled form.
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Disassembly is not possible due to wires running between different stages.
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Alternate solution will be to wire another pin on the tower on the same SQUET card.
Pin 4 is available
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Turbo pump status:
Tightening all possible screws seem to have an effect on the overall pressure.
Pump down to 10^-4 mbar and holding.
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Leak detector shows leaks on the two big connection pieces. Will redo those connections with vacuum grease to see if it can do better. Highly likely we will use this turbo now.
DAQ:
Tested all three Dsub ports at adaptor board.
All 12 TES lines of RevE DCRC, are supplying correct bias current.
Sent DCRC4 (revC), SN18 (revE) boards to Anthony. They are working on NaI trigger development using revE.
Accelerometers:
The speaker unit we have been using has its own audio power amplifier.
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Disconnected the speaker from its unit.
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Connected it to the pulse generator.
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Supplied low frequency square wave to the speaker, with piezos connected to the diaphragm
Contacted Scott Oser to check if SDU itself can power the piezos.
Computers:
