Multidetector endodosimetry probe with silicon-pn-junction-diodes for in-vivo-dosimetry.
In-vivo-dosimetry is necessary to prevent overdosage during radiation treatment techniques of great risk. New special dosemeter probes with up to five Si-pn-junction-diodes in a silicone tube were developed and tested for endodosimetry. They show high efficiency and good linearity of response, without dose-rate dependence. The steep increase of the sensitivity for low energies causes a phantom depth dependence of response. A low temperature dependence but a large anisotropy of response is found for the tested diodes. These multidetector probes proved to be sufficient for direct reading endodosimetric control of dose and dose-distribution during radiotherapy.
D001918:Brachytherapy / Q000295:instrumentation*; D005260:Female; D006801:Humans; D011879:Radiotherapy Dosage / Q000295:instrumentation*; D012666:Semiconductors; D012825:Silicon
D012825:Silicon