Agenda

Operations
- Run 63 (G132, Ge iZIP "pathfinder") Completed.
  - Post-mortem: one bad channel, couldn't find any electrical problems. Detector itself?
- Run 64 run (S1502, Si 6“ diam 1”-thick 5Q device).
  - Detector wirebonded, surgery to repair shorted inner channels
  - Extender plugs and short tower spool complete
  - Electrode modified for four Am sources
  - How will we wire HV electrode and LEDs?pdf
- exploring ideas for improvements without upgrade: float DCRCs for symmetric biasing Proposed Scheme, decrease Rshunt in SQUETs (had a look at this, a little hard to set up: SQUET picture)
Processing and Analysis
- Run 63 (Ge iZIP pathfinder)
  - Charge-collection efficiency seagull plots. Note for Tower Technical Meeting
  - need to analyze bkg data (phonon collection efficiency) and Cf data
  - IbIs sequence data taken, testing hypothesis that state of neighboring channels affects IbIs
- Run 62 (HV#4, Si)
  - more IbIs automation work
  - n,gamma coincidence: seeing weird glitches, periods where the events show some phonon channels not in sync with others (then sync returns again)plots
- Run 61, HV#2 (Ge)
  - z-fiducialization study
- Run 56/Run 54
Lab infrastructure
- plans to try to improve helium recovery
  - add length of copper tubing to recovery line, to warm helium on the way to the meter
  - maybe try to recover helium while waiting for the transfer stick to cool before hookup
Old/continuing items:
- Run 62 (HV#4, Si) post-mortem: two “bad” channels seem not to be wiring problems, maybe the problem is on the detector (photos)
- Run 60, 6“ detector paper - Plan to edit and publish without 5Q data
- Lab infrastructure
  - Update on He recovery efficiency, slow transfer test
- DAQ and data pipe
  - DAQ upgrade - discussed with Bruno about IbIs tool development
  - Data storage and backup:
    - Need to copy all Run 60 and some Run 61 data to SLAC
  - Autoprocessing and data organization development:
    - currently autoprocessing suspended, no “official” processing for Runs 60, 61, 62
    - clean up database - some info missing. Consider adding additional info
- Possible plan to modify DCRCs (resistor swap) so we can increase front-end gain, improve IbIs (suggestion from Bruno)
- IF (not likely) new DCRC RevC.2 arriving from Bruce in Denver then
  - missing resistors on 3 QET channels, we've ordered some