UMN CDMS Wiki archive
start › cdms › k100 › run_diary › 20240205

2024/02/05 (Monday)

Previous Day

  • Lab in-personnel: Ping, Giulia
0915 Refilled LN2 dewar
1106 Refilled Cold Trap 1 with LN2
1119 Started LHe transfer, MB% = 0.09
The heater for the linde dewar does not work for 4 psi, we had to flip back and forth between 8 psi and turning off the heater to run the transfer.
1221 Ended LHe transfer, MB% = 91.7
1801 U01-1: pB, U09-5: pBr2, U03-3: pCr1, U05-2: pCr2, U08-2: pAr2, U05-4 : SQUID BiasC
Switched off the above buttons on the diverter board to open up the circuit with only pD as the working channel
1827 Power on all three time synced DCRCs(1,3,4) to initialize them and then connect cables to check for signal
1830 Since DCRC3 is master, keep Cable1(with Side2pF) on DCRC1
Cable 1(SQuid Bias: -91.7, -88.4, -74.6, -100.5 LockPoint: -9.45, -3.01, -4.21, -7.36 ) and Cable 3(SQuid Bias: -70.4, -101.7, 0, -75.4 LockPoint: -4.55, -4.65, 0, -2.64 ).
Cant bias DCRC1. Try swapping the slaves : Timing Link: DCRC3 → DCRC1 → DCRC4
Swap Master to DCRC1: Timing Link: DCRC1 → DCRC3 → DCRC4
But in 2 DCRC setup, DCRC3 needs to be master to be able to time sync it

Next Day