26–27 Jan 2023
Fyzikální ústav AV ČR, v. v. i. (FZÚ)
Europe/Prague timezone

Secondary standards and relative dosimetry in UHPDR high energy electron beams at the PTB facility

26 Jan 2023, 13:30
20m
Oral Work Package 2 Work Package 2

Speaker

Alexandra Bourgouin (Physikalisch-Technische Bundesanstalt)

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.

Primary author

Alexandra Bourgouin (Physikalisch-Technische Bundesanstalt)

Presentation materials