[Hps] Data taking plans in the next three days

[Stepan JLAB]

Takasi, 

Procedures are not clearly defined for large dynamic range harp scan. It is not useful to do it now.

Stepan

Sent from my iPhone

> On Dec 18, 2014, at 8:se22 AM, Maruyama, Takashi <tvm at slac.stanford.edu> wrote:
> 
> 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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