Title :
Development of a RadFET linear array for intracavitary in vivo dosimetry in external beam radiotherapy and brachytherapy
Author :
Price, Robert A. ; Benson, Chris ; Rodgers, Kenneth
Author_Institution :
Dept. of Phys., Clatterbridge Centre for Oncology NHS Trust, UK
Abstract :
We present the details of a new linear array dosimeter consisting of a chain of semiconductors mounted on an ultra-thin (50μm thick) flexible substrate and housed in an intracavitary catheter. The semiconductors, manufactured by NMKC Cork, have not been packaged and incorporate a passivation layer that allows them to be mounted on the substrate using flip-chip-bonding. This paper reports, for the first time, the construction of a multiple (ten) detector array suited to in vivo dosimetry in the rectum, esophagus and vagina during external beam radiotherapy, as well as being adaptable to in vivo dosimetry during brachytherapy and diagnostic radiology.
Keywords :
biological organs; brachytherapy; catheters; dosimeters; dosimetry; field effect transistors; flip-chip devices; radiology; semiconductor counters; 50 mum; RadFET linear array; brachytherapy; diagnostic radiology; esophagus; external beam radiotherapy; flip-chip-bonding; intracavitary catheter; intracavitary in vivo dosimetry; linear array dosimeter; multiple detector array; passivation layer; rectum; semiconductor detectors; ultra-thin flexible substrate; vagina; Adaptive arrays; Brachytherapy; Catheters; Dosimetry; In vivo; Passivation; Semiconductor device manufacture; Semiconductor device packaging; Structural beams; Substrates;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2003 IEEE
Print_ISBN :
0-7803-8257-9
DOI :
10.1109/NSSMIC.2003.1352160
