Proton Calorimetry/Meetings/2021/02/10

Minutes for UCL Proton Calorimetry Meetings, 3rd February

Simon Jolly, Raffaella Radogna, Saad Shaikh, Fern Pannell

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.