sPHENIX Event Plane Detector discussion

[Ron Belmont <belmonrj AT gmail.com>]

Hi All,

Here are the brief minutes from the meeting.  As always feel free to reply with comments, complaints, corrections, etc.

Regards,

Ron

- All 30 sectors now complete, moving on to optical fiber connectors.

- Linearity in cosmics test is a constant of the SiPM (related to gain curve).  Differences between sectors can be used to identify problems with sectors.  Next cosmics tests will be a similar SiPM bias voltage scan with different sectors.

- Need to follow up soon on electronics order.

- Fairly extended discussion about ADC.  sPHENIX default is 12 samples of waveform.  Number of samples doesn’t affect the number of channels needed, but can be reduced as needed to reduce throughput.  How exactly the ADC value will determined hasn’t been decided, but the sEPD will just copy whatever the calorimeter group decides.

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Ron Belmont (he/him/his)
Past Chair, RHIC/AGS Users' Executive Committee
Assistant Professor, Department of Physics & Astronomy
University of North Carolina at Greensboro
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On Sep 25, 2022, at 1:25 PM, Ron Belmont <belmonrj AT gmail.com> wrote:

Hi All,

We’ll have the usual sEPD meeting tomorrow, Monday Sept 26 at 4pm EDT.

Indico: https://indico.bnl.gov/event/16866/ 

Zoom: https://lehigh.zoom.us/j/99703618048?pwd=djFkNWNCSGk4dHlQRTdObkYwMXhKUT09 

Regards,

Ron

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Ron Belmont (he/him/his)
Past Chair, RHIC/AGS Users' Executive Committee
Assistant Professor, Department of Physics & Astronomy
University of North Carolina at Greensboro
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