He3 / H3 e,e'p experiment E12-14-011

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The SRC Tritium Experiment (E12-14-011) is an (e,e'p) experiment in Hall A, comparing the momentum distribution of protons in tritium and helium-3. These nuclei have a large proton-neutron asymmetry, but are also isospin-mirror nuclei, meaning that the proton distribution in tritium can tell us about the neutron distribution in helium-3.

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Run Coordinator Schedule

From To RC
April 12 April 19 Florian Hauenstein
April 20 April 22 Eric Fuchey
April 23 April 30 Barak Schmookler
May 1 end of run Axel Schmidt

Contact Info

Expert Phone
Run Coordinator (RC) 757-876-1787
Florian Hauenstein (757) 746-3395
Reynier Cruz-Torres (786) 398-1443
Machine Control Center (MCC) 7046
Target Experts
Name Work Cell Email
J.P.Chen 7413 (757) 218-0722 jpchen@jlab.org
Greg Smith 5405 (757) 871-4371 smithg@jlab.org
Silviu Covrig 6410 (843) 697-1753 covrig@jlab.org
Dave Meekins 5434 (757) 968-9076 meekins@jlab.org
Chris Keith 5878 (757) 746-9277 ckeith@jlab.org

Important Links

Shift Instructions

Instructions for important tasks

  • Running with the carbon-Hole target
  • Running with the optics target
  • Running with the dummy target
  • Running with the tritium target
  • Running with the helium-3 target

JLab Training

  • You need to have a JLab account and be an active user.
  • All trainings are available HERE.
  • You can check the current status of your trainings HERE.

Regular Trainings:

The trainings that we need are:

  • SAF110T - Tritium Training
  • SAF116kd - Physics Division Work Governance
  • SAF103 - ODH Training (Short quiz at the end)
  • SAF100 - EH&S Orientation
  • SAF801 - Radiation Worker Training
    • If you do it for the first time you need to do a quiz at a JLab computer and a practical test. Afterwards you get your personal dosimeter
    • If you renew your Radiation Worker training you only need to do the quiz.
  • SAF110 - After you did all of the above you need the Hall A walkthrough.
  • Read and sign the COO/ESAD/RSAD/ERG in the counting room. Electronic copies are HERE.

Tritium Target Operator Training

  • Most detailed description of what to do can be found HERE.
  • cryotarget training (lets you operate the standard Hall-A/C targets)
    • Contact Greg, JP, and Silviu (see table above) to schedule time to receive a lecture. Lecture slides HERE.
    • Lecture training followed by a practical training with one of them.
    • Take half a shift with a trained Target Operator.
    • Once the steps above are completed, send an email to Meekins, Greg, JP, and Silviu letting them know
  • Tritium Target Operator Training
    • Note that this is different from the SAF110T - Tritium Training mentioned above
    • Training consists of going through the slides HERE.
    • Send an email to Meekins letting him know that you completed the training


Reference Reading

Previous (e,e'p) studies

Weekly SRC Meetings (Wednesdays 10:00 ET)