Berkeley Lab, May Bertrand H.J. Biritz1/16 Outline RHIC and STAR STAR Time of Flight (TOF) High and Low Voltage Power Supply Control Interface Daya Bay Detector Physics of Interest PMT testing system: Single Photo-electrons (SPE) Layout Result
Berkeley Lab, May Bertrand H.J. Biritz2/16 Relativistic Heavy Ion Collider (RHIC)
Berkeley Lab, May Bertrand H.J. Biritz3/16 Solenoidal Tracker at RHIC (STAR) TOF
Berkeley Lab, May Bertrand H.J. Biritz4/16 TOF System Multi-gap Resistive Plate Chamber (MRPC) was developed by CERN US and China did R&D on the detector MRPC modules produced in China and TOF tray assembled in US Completion date: 2009 UCLA’s responsibility High/Low Voltage Power Supplies Control Interface for Power Supplies
Berkeley Lab, May Bertrand H.J. Biritz5/16 Power Supplies High Voltage: CAEN SY1527LC: 200 A per Channel, 12 Channels Total (19.2 W) Experimental Physics and Industrial Control System (EPICS) Interface Low Voltage: Wiener PL512: 20A per Channel, 12 Channels Per Crate, 10 crates (19.2kW) LabVIEW Interface for 2007 Run Eventually in EPICS as well
Berkeley Lab, May Bertrand H.J. Biritz6/16 HV EPICS
Berkeley Lab, May Bertrand H.J. Biritz7/16 LV LabVIEW
Berkeley Lab, May Bertrand H.J. Biritz8/16
Berkeley Lab, May Bertrand H.J. Biritz9/16 Daya Bay 3 GW th give 17.5 GW th in 2010
Berkeley Lab, May Bertrand H.J. Biritz10/16 Daya Bay Detector & Signal + p D + (2.2 MeV) (delayed, s) + Gd Gd* Gd + ’s (8 MeV) (delayed, s) 0.3 b 49,000 b + 2 (1.2 MeV) (prompt)
Berkeley Lab, May Bertrand H.J. Biritz11/16 Physics of Interest
Berkeley Lab, May Bertrand H.J. Biritz12/16 Physics of Interest Continued
Berkeley Lab, May Bertrand H.J. Biritz13/16 PMT Test StandPMT Test Stand (schematically)
Berkeley Lab, May Bertrand H.J. Biritz14/16 PMT Test Stand PMT LED DAQ LabVIEW Steel Box
Berkeley Lab, May Bertrand H.J. Biritz15/16 Single Photo-electron gain = 1.88 x fC/bin QADC bins Count
Berkeley Lab, May Bertrand H.J. Biritz16/16 THANK YOU