Beam halo measurements to assess background for PRad target TAC runs.

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The goal is to assess the beam background due to a possible halo hitting some of the material around the beam line. This will be use to check if using the PRad target for TAC runs is feasible.

Do a run at different current, no radiator, TAC in, target in whatever condition for standard TAC run (presumably EMPTY):

  • 10 min at 10nA
  • 10 min at 50nA
  • 10 min at 100nA
  • 10 min at 150nA
  • 10 min at 250nA

Repeat several times throughout Fall/Spring run periods to check stability and possible change with beam tune.