Characterisation of Glass Beads for Radiotherapy Dosimetry
2013
Examinations have been made of a low cost commercially available material which is potentially useful as a dosimeter in radiotherapy. An investigation of the thermoluminescent (TL) yield and electron paramagnetic resonance (EPR) signal was performed by irradiating acid-washed glass jewellery beads to MV photons using a medical linear-accelerator and 60Co gamma rays. For
comparison, irradiation exposures were also carried
out on 5 mm length of Ge-doped optical fibres that
have been widely investigated for their TL properties
[1].
The dose response was linear for the investigated
dose range of 1 to 2500 cGy, with an R2 correlation
coefficient of > 0.999 and reproducibility of 1.7%.
The results suggest the potential for use of glass
beads as TL dosimeters in radiotherapy.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
0
References
1
Citations
NaN
KQI