Title :
Implantable wireless dosimeters for radiation oncology
Author :
Maleki, T. ; Son, C. ; Ziaie, B.
Author_Institution :
Birck Nanotechnol. Center, Purdue Univ., West Lafayette, IN, USA
Abstract :
In this paper, we present the development of two radiation detectors for accurate dose monitoring in radiation oncology. The first one is a passive MEMS-based miniature ionization chamber for total accumulated dose measurement. A sensitivity of 49 kHz/Gy in a dynamic range of 30 Gy was achieved in an LC configuration. The second transducer is based on a sensitive solid-state structure that can be used in active interrogation schemes. This sensor exhibited a sensitivity of 50 k¿/Gy in a dynamic range of 20 Gy.
Keywords :
bioMEMS; biomedical transducers; cancer; dosimetry; ionisation chambers; microfabrication; particle detectors; radiation therapy; LC configuration; active interrogation schemes; dose monitoring; implantable wireless dosimeters; passive MEMS-based miniature ionization chamber; radiation absorbed dose 20 Gy; radiation absorbed dose 30 Gy; radiation detectors; radiation oncology; solid-state structure; transducer; Biomedical applications of radiation; Capacitors; Dynamic range; Electrons; Glass; Ionizing radiation; Neoplasms; Oncology; Solid state circuits; Wireless sensor networks;
Conference_Titel :
Electron Devices Meeting (IEDM), 2009 IEEE International
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-5639-0
Electronic_ISBN :
978-1-4244-5640-6
DOI :
10.1109/IEDM.2009.5424290
