Speaker
Dr
Duncan Butler
(ARPANSA)
Description
Detectors using diamond for the active layer are becoming more popular in radiotherapy because they have a relatively flat energy response and can be small. Recently published modelling of a new solid-state diamond detector (PTW model 60019) suggests that only a region of diameter 0.6 mm responds to radiation. The manufacturer’s specifications indicate that the active area is a disk of diameter 2.2 mm. We measured the active area by collimating a synchrotron beam of average energy 95 keV to spatial dimensions of 0.1 mm and scanning the diamond through the beam. The measured area had a diameter of 2.4 mm, in good agreement with the specifications when the beam size is considered. 2D plots of the diamond spatial response also confirm the shape of the active area.
| Keywords or phrases (comma separated) | Diamond,scanning,radiotherapy,detector response |
|---|---|
| Are you a student? | No |
| Are you an ECR? (<5 yrs</br>since PhD/Masters) | No |
| Do you wish to take part in</br>the Student Poster Slam? | No |
| What is your gender? | Male |
Primary author
Dr
Duncan Butler
(ARPANSA)
Co-authors
Dr
Andrew Stevenson
(Australian Synchrotron/ CSIRO)
Dr
Chris Oliver
(ARPANSA)
Dr
Jayde Livingstone
(Australian Synchrotron)
Dr
Jeffrey CROSBIE
(RMIT University)
Dr
Joerg Lehmann
(Newcastle Calvary Mater)
Dr
Toby Beveridge
(ARPANSA)
Ms
Tracy Bailey
(ARPANSA)
