Proton Calorimetry/Meetings/2021/02/10

Minutes for UCL Proton Calorimetry Meetings, 3rd February

Present

Simon Jolly, Raffaella Radogna, Saad Shaikh, Fern Pannell

Saad Shaikh

• Implemented dynamic setting of number of DDC232 boards in UART FPGA design (in addition to USB design).
• FTDI script now starts a new file for measurements after specified refresh rate, rather than after a certain number of measurements.
  • WriteCSV however still requires specification of refresh rate to ensure file reader doesn't break – synchronisation is easier now that new files are started after time periods.
  • Will investigate performing writeCSV tasks at FTDI level, to improve DAQ rate and synchronisation.
• Added Bragg fit to live DAQ: liveFit reads latest file, averages measurements and then performs fit.
  • Took Run 47 from HIT April 2019 dataset as sample Bragg curve and scaled real photodiode data as small amount of noise.
  • Typically achieve 2-3Hz with 48 data points (3 DDC232 boards), whether plot is displayed or not. Appears that number of data points is the largest bottleneck.
  • Will need to investigate non-ROOT-based fitting procedures to improve fitting rate.
• Did a fresh install of MacOS Big Sur on DAQ MacBook Pro.
  • Problems installing MacPorts and ROOT, due to Xcode SDKs. ROOT appears to want 11.0 whereas MacPorts wants 11.2. Latest version of Xcode appears to only provide 11.1!
• Will chase up Texas Instruments about DDC232 daisy-chain problems.
• HEP PhD "Summer" School will be held online for two weeks beginning 15th March. Will need to present a poster on work so far.