Proton Calorimetry/Meetings/2022/06/15

Minutes for UCL Proton Calorimetry Meetings, 15th June

Present

Saad Shaikh, Simon Jolly

Saad Shaikh

• Tested crosstalk with mylar sheets in black scintillator stack enclosure – results significantly better than white sheets. Added results to crosstalk experiment page.
• Prepared Rev. B DDC232 prototype detector with 23 white painted and 25 clear scintillator sheets, latter using mylar sheets for optical isolation.
  • Is necessary to take ground pin from DDC232 and connect to metal enclosure to minimise electronic noise pickup.
• Prepared Rev. C DDC232 prototype detector with 32 clear sheets, using mylar sheets for optical isolation.
  • NUVIA sent 3.4 mm sheets instead of 3 mm sheets, therefore had to use 11 2 mm sheets and 21 3.4 mm sheets to make up the difference.
• Added option to DDC232 analysis code to reverse order of photodiodes.
• Will conduct beam test at UCLH tomorrow afternoon.