Ion Chambers and Reference Dosimetry. By: Thomas Milan

[@medicalphysicsuwa]

Erratum: On slide 7 a graphite calorimeter is pictured, but incorrectly labelled as a graphite cavity chamber. At ARPANSA: · the graphite calorimeter (pictured) is an absorbed dose to water standard for Co-60/MV · the graphite cavity chamber (not pictured) is an air kerma in air standard for Co-60

[@rimelius]

Thank you for this really useful video

[@successfulpeople9745]

I like it

[@melaniaistrati6778]

Hi, can you tell me where did you got the formula for the quality factor Kq = a (TPR-20.10) + b (TPR-20.10) + c and the values a, b, c? Maybe a link or something? Thank you very much!

[@medicalphysicsuwa]

This formula is provided by the calibration lab for the chamber calibrated for a centre. It is chamber specific, so the a, b, c for our camber would not be the same as your chamber.