Quick VPT Test Rig meeting - minutes

Date of meeting: 22 March 2002

Present: PRH, BWK, ALL, JHW

1. Rig status: 250 VPTs tested.  Some fail on excess dark current - PRH will take one to test at Brunel.
2. Software: JHW is upgrading Labview daq program.
3. Faceplate irradiation: Batch y25236b less good than previoous batches. Now taken to ~20kGy - still just fails specification.
4. Brunel spectrophotometer: single PbWO4 crystal measured as a demonstration.

Bruce Kennedy / 03 February 2004