Abstract
A feasibility study is considered using PRESAGE® dosimeters as a direct dosimetry comparison tool to correlate proton activation to dose in a clinical beam. Proton activation measured by PET/CT has been studied as a future tool method for in vivo dosimetry. PRESAGE® is a 3D offline dosimeter that has a material composition giving it a longer activation decay time than similar dosimeters allowing easier measurements. In this study, the PRESAGE® positron emissions were measured by PET and directly compared to dose measurements made by optical-CT to make spatial comparisons of dose and proton activation. Profiles along the central axis of the beam found a shift in the distal-80% resulting in the proton activation profile being 1 cm shallower than the dose profile. Cross beam profiles demonstrated little discrepancy between long (3 hour) and short (30 minute) PET scan times.
| Original language | English (US) |
|---|---|
| Article number | 012071 |
| Journal | Journal of Physics: Conference Series |
| Volume | 573 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2015 |
| Event | 8th International Conference on 3D Radiation Dosimetry, IC3DDose 2014 - Ystad, Sweden Duration: Sep 4 2014 → Sep 7 2014 |
ASJC Scopus subject areas
- General Physics and Astronomy
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