Proton Calorimetry/Meetings/2025/03/12

Minutes for UCL Proton Beam Therapy Group Meetings, 4th March

Present

Joe Bateman, Sonia Escribano, Febian, Harry Barnett, Simon Jolly, Raffaella Radogna (via Teams)

Harry Barnett

• Daetron to be delivered on wb 7th April
• Sorting air handling unit in the workshop on 2nd April
• Vacuum pump already delivered

Raffaella Radogna

• Debugging setup of fibres in Bari
• Producing new connectors and cables
• Outcome from meeting Blake last Friday and how to move forward

Joe Bateman

• Finalising slides and talk for PPRIG

Simon Jolly

• Circuit boards being investigated by Oxford and looking at remaking zmod boards
• Ddc boards have arrived in Oxford and have been looked at by Pete and should hopefully be okay
• Matt has bypassed shorts on one of the zmod boards by brute force to work so can test ddc boards and zmod boards

Sonia Escribano

• Upgrading calibration process
• Shoot through files (2 per calibration) how many off-centre measurements - depends on available beam time but at least 4 ideally (up, down, left, right)
• Acquire data with both boards simultaneously for calibration of each stack
  • Doesn’t matter if we do or don’t have live display of uncalibrated data for this part
• Calculating WET of each stack - included beam time request for each module front and back
• Had a look at reversed board acquisition and need to be weary of photodiode position of where BP occurs for reconstruction
• However when using multiple stacked will only have to use one beam direction so this issue with flipping twice will not be necessary
• Will eventually need to give one single calibration file including weightings if necessary for different beam positions

Febian

• Continuing slides on understanding PBT and the of the QuARC detector.