Speaker
Description
Using the two reference UHPDR electron beams characterised at the PTB facility, it was possible to perform the characterisation of Alanine/ESR secondary standard dosimetry system and to conclude that no dose rate dependency of the response occurs in a dose per pulse range between 0.1 Gy to 6 Gy per pulse. The second secondary standard to be tested was commercially available ionisation chambers. Seven commercially available chamber types were tested in the reference UHPDR electron beam to determine the charge collection efficiency. As 22 chambers were tested, it was possible to determine the inter-type and the intra-type variations. To evaluate non-commercially available dosimeters, but with alleged dose rate independency, a graphite probe-type calorimeter, namely Aerrow, was tested in the reference beam at the PTB facility.
