Proton Calorimetry/Meetings/2022/06/08

Minutes for UCL Proton Calorimetry Meetings, 8th June

Saad Shaikh, Simon Jolly, Raffaella Radogna

Attended and presented at CALOR conference in Brighton.
Attended and presented at Frontier Detectors for Frontier Physics conference in Elba.
Performed rudimentary summed average fit of +3cm and -3cm in x-direction from UCLH data to mimic dual photodiode setup.
- Results are underwhelming. Significant noise observed and fit results not great.
Performed Bortfeld SOBP fit to HIT reference SOBP.
- Results are promising with little adjustment needed to p to obtain flat plateau.
Implemented RevB/C as a parameter to photodiode/FPGA DAQ and analysis code. Also implemented automatic detection of FSR and number of DDC232 boards where possible.
Simon has printed black version of stack holder for 100mm and 105mm sheets.
- Will test optical isolation with mylar foil sheets and compare to white stack holder.
Asked Connor to cut stencil with extra coverage to cut "envelope" style mylar sheets. Will test this when available.
Rev. C boards no longer functioning properly even with replacement Nexys Video board. Attempted some debugging with Matt Warren but will reach out to Marko to discuss further.
Beam test booked for Thursday 16th June!
- Will prepare 48-sheet stack with 25 clear sheets and 23 white sheets, in black stack holder for use with photodiodes and CMOS sensor. No optical gel.