[Rgc] [New Logentry] RC Daily Summary

[akbar at jlab.org]

Logentry Text:
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Summary from Monday-Day (10/3/2022) to Tuesday-Owl (10/4/2022)

General Summary:
- The Carbon target was installed during the day shift. It went smoothly and No issue about the humidity increase in SVT nor the anomaly in the canonical-heat exchanger (https://logbooks.jlab.org/entry/4050343)
- The beam was off for hours and come back right before the Owl shift started. Before taking the production data, beam quality was checked by sending 2 nA to Faraday Cup and turned off tracking detectors
- The Owl shift was smooth, got 352 minutes of ABU. 
- Run the production data on HWP Out until ~4 am then change the HWP to IN.
- Collected ~240 Millions events (~100 M with HWP Out and ~140 M with HWP IN) 

Accumulated events:
240 M events from 8.5 hours of running time
List of good run: 17138 (Carbon Out), 17139 (Carbon IN), 17140 (Carbon IN)

Issue/Information:
- No major issue. Just HV trip on the detector which restored quickly by power cycle
- Nathan changed the unit of the Raster Mon to centimeter (https://logbooks.jlab.org/entry/4050421)
- Nathan fixed the problem regarding Torus/Solenoid DAQ alarm that happened during the weekend (https://logbooks.jlab.org/entry/4050468)
- Pierre Chatagnon entered the hall to work on the CND

Plan:
- Today we change the target to (polarized) NH3. 
- Run with PROD66_PIN configuration for at least 20 M events
- Run with normal PROD66 configuration (The duration for each run is 4 hours or 100 M events)
- Run until Tomorrow. And tomorrow we will change the HWP from IN to Out (or further notice)

Other plan? for example changing solenoid polarity?

We will have RC meeting at 2 PM today.

Zulkaida


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This is a plain text email for clients that cannot display HTML.  The full logentry can be found online at https://logbooks.jlab.org/entry/4050978
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