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

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.

Contact Info

• Run Coordinator (RC) phone number: 757-876-1787
• Florian Hauenstein: (757) 746-3395
• Reynier Cruz-Torres: (786) 398-1443
• Machine Control Center (MCC): 7046
• Experts on call

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Spreadsheet

Important Links

• Hall-A website
• Hall-A Elog
• Shift Sign-Up
• Shift Schedule (Read only)
• Run Coordinator Page
• CEBAF Status
• HRS info

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 JP Chen for this (jpchen@jlab.org)
  • Lecture training followed by a practical training. Lecture slides HERE.
• Tritium Target Operator Training
  • Note that this is different from the SAF110T - Tritium Training mentioned above
  • Training consists of going through the slides HERE.

Documentation

• Raster
• HRS DAQ Resources
• PortSever and CPU Programming
• Simulation
  • Using MCEEP
  • Using SIMC
  • Using COSY
• Tel Aviv University SRC group
• [back to Hall A wiki]

Reference Reading

• Proposal for E12-14-011, approved by PAC-42
• Hall-A NIM paper (2004)
• Tech notes on HRS optics calibration
• Hall A Coordinate systems (Ye Zhihong PhD thesis)
• Tritium Target

Previous (e,e'p) studies

• Hall-A E89-003 16O(e,e'p) experiment
• Hall-A E07-006 4He(e,e'p) experiment

Weekly SRC Meetings (Wednesdays 10:00 ET)

• Files (SRC Meetings)