Proton Calorimetry/Meetings/2024/09/18

Minutes for UCL Proton Beam Therapy Group Meetings, 18th September

Joe Bateman, Sonia Escribano, Febian, Simon Jolly, Raffaella Radogna (via zoom)

Pushing for masters student to complete analysis of SciFi monitor (but not with protons from Linear Beam)
It is okay for measurement of the beam spot position through the centroid of the cluster
Beam size measurements very sensitive to geometric variation between coupling between pixels and fibres - need to find a way to calibrate fibre response
- Pixel sharing between fibres due to pixel pitch
Potential calibration method through shining collimated light onto each of the fibres
Noticing reduced intensity on the central pixels
Has travel money to use up before end of 2024 - plans to come to UCL.
- w/b of 28th October to look at SciFi tracker and discuss integrated design
- Possible second trip in December for beam test if new electronics and scintillator sheets are ready

Been preparing a talk for the Science Slam session at the DKFZ Medical Physics Summer School
Suggestions for QuARC Calibration Issues:
- Compare the method Saad was using and the new method with the old shoot through files
- Check with the Manchester and PARTREC data
To check up on status of scintillators and follow up with Harry & Martin

Harry has been in charge of dealing with scintillator sheets but has been occupied by SuperNEMO
Have rough cuts from nuvia - either go to Daytron high precision machinery or to someone who has one of these machines. Daytron can do better 10 um flatness
Need Martin to machine the flatness

Things needed to sort before next beam test:
- Oxford to do small changes to zmod board
- Pete Hastings have new ddc boards
- New scintillators for a full stack -
- If doing full QuADProBe test only need two stacks

Plan for PTCOG Argentina Talk:
- Full 3D treatment plan MC reconstruction with log file data and QuADProBe measurements at Maastro and at PSI
- Unsure whether SciFi tracker will be available so will likely have to use Tony's CMOS sensor again if available.