Experts on call

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On call Experts

  • Before contacting any on-call experts, shift workers should consult the Run Coordinator 270-8916

General

Hall C Run Coordinator

  • 270-8916

Hall C Counting House and Hall

Hall C Technical on call

  • 593-7890
  • Use for issues related to HMS/SHMS magnets, power supplies, rotation or other hall infrastructure
  • If no response to first call:
  1. Wait 10 minutes
  2. Call again - leave voicemail if no pickup, alert the RC - RC will contact appropriate subject matter expert

Hall C Work Coordinator

  • Walter Kellner: 592-1527

Raster

  • Mark Jones: 206-7702
  • Chris Cuevas: 865-0461
  • Bill Gunning: 879-2420 or 269-5017


Beamline

  • Dave Gaskell: 719-5482

Unser, BCM

  • Dave Mack: 269-7442

Beam Energy Measurement

  • Mark Jones: 206-7702
  • Dave Mack: 269-7442

Online/offline analysis

DAQ, Trigger

  • Brad Sawatzky: 344-2494

High Voltage

  • Steve Wood: 593-6656

Target system

Polarized 3He Target

  • Jianping Chen: (757) 218-0722
  • Junhao Chen: (757) 749-9758
  • Todd Averett: (757) 561-6702

Cryo Target (not used during F2019/Sp2020 run in Hall C)

  • Target on call: (757) 218-0071

SHMS Detectors

Hodoscopes

  • Simona Malace: 869-3131

Drift Chambers

  • Eric Christy: 725-2685
  • Deb Biswas: 503-9499

Noble Gas Cherenkov

  • Brad Sawatzky (gas system): 344-2494
  • Donal Day: 434-249-0241

Heavy Gas Cherenkov

  • Brad Sawatzky (gas system): 344-2494
  • Garth Huber:

Aerogel

  • Vladimir Berdnikov: 757-269-6928 (office), 757-277-8135 (cell)
  • Hamlet Mkrtchyan: (hamlet@jlab.org) - remote, not on site


Calorimeter

  • Hakob Voskanyan: 7741, 223-6507
  • Hamlet Mkrtchyan: 7741 (hamlet@jlab.org) - remote, not on site

HMS Detectors

Hodoscopes

  • Simona Malace: 869-3131

Drift Chambers

  • Howard Fenker: 849-2587
  • Brad Sawatzky: 344-2494
  • Liguang Tang:

Gas Cherenkov

  • Howard Fenker: 849-2587
  • Brad Sawatzky (gas system): 344-2494

Calorimeter

  • Hakob Voskanyan: 7741, 223-6507
  • Hamlet Mkrtchyan: (hamlet@jlab.org) - remote, not on site