[Hps] Data taking plans in the next three days

[Maruyama, Takashi]

In addition to these data taking, the following works are planned,

5) Arne/Mike to work on rotating the beam spot by 45 degrees. This work may not be invasive, but we have to do harp scan when requested.

6) 60 Hz data
     Hovanes and Rafayel have taken data, but the CPU was too slow. They are going to replace the CPU and try this again.

7) SVT Collimator and beam stability study.
     We can try large dynamic range harp scan if it works.

8) Measure neutron flux using bubble detectors
     When the beam is stable, we take a short control access to install the detector, run the beam for 1 hour and then take another control access to count bubbles.

Takashi 
________________________________________
From: hps-bounces at jlab.org <hps-bounces at jlab.org> on behalf of Maruyama, Takashi <tvm at slac.stanford.edu>
Sent: Wednesday, December 17, 2014 5:39 PM
To: hps at jlab.org
Subject: [Hps]   Data taking plans in the next three days

Assuming we have a good stable beam, the following data will be taken in the next three days,

1) Loose two cluster trigger with pair trigger tag.
      This is our auto-pilot DAQ mode and data will be taken during late swing and owl shift when expert does not have to be present.

2) Raw fADC data to study pile-up
        Data will be taken during day shift.

3) Single cluster trigger with high energy threshold
      This is for beam energy calibration. Since pre-scaling is not quite ready, masking is used to increase statistics in the outer region.

4) Beam-gas scattering sample
       No target. Chicane magnet setting will be varied from -25% to -20%, -15%, -10%, etc.

If you have any other proposal, please speak up.

Takashi
RC

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