Radiotherapy/Experimental Runs/2022-09-07

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Third experimental measurements with Cyberknife at Birmingham. Green and blue scintillator thin sheet measurements with measurements of green radiation damage.

Setup

Camera settings

  • Focal length 20mm
  • lens focus distance – 0.5 (500mm)
  • 53cm focal plane (phi on camera ) to sheet
  • f-number 5.6

Plan

  • Take photos of green sheet with blocks1 starting from big field size to small
  • Take photo of discolouration
  • Take out blocks1 and photo with colorchecker
  • Put in blocks2 and blue enhanced scint sheet – repeat
  • Remove blue sheet – repeat measurements
  • Photo blocks1 and colorchecker again

Data taking

Blue scintillator sheet
Collimator Size (mm) Exposure (s) ISO f-number File no. Comments Image
60 30 100 5 69-73
coll_size_60mm_0.JPG
60 30 100 5 74-78
coll_size_50mm_0.JPG
60 30 100 5 79-83
coll_size_40mm_0.JPG
60 30 100 5 84-88
coll_size_35mm_0.JPG
60 30 100 5 89-93
coll_size_30mm_0.JPG
60 30 100 5 94-98
coll_size_25mm_0.JPG
60 30 100 5 99,101-104
coll_size_20mm_0.JPG
60 30 100 5 106-110
coll_size_15mm_0.JPG
60 30 100 5 111-115
coll_size_12-5mm_0.JPG
60 30 100 5 116-120
coll_size_10mm_0.JPG
60 30 100 5 121-130
coll_size_7-5mm_0.JPG
60 30 100 5 131-140
coll_size_5mm_0.JPG
With scintillator blue sheet
Collimator Size (mm) Exposure (s) ISO f-number File name Image Comments
5 30 100 5 hello im comment
5 30 100 5 hello im comment
With no sheet
Collimator Size (mm) Exposure (s) ISO f-number File name Image Comments
5 30 100 5 hello im comment
5 30 100 5 hello im comment