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

Volume

3

fYear

2003

fDate

19-25 Oct. 2003

Firstpage

1494

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2003 IEEE

ISSN

1082-3654

Print_ISBN

0-7803-8257-9

Type

conf

DOI

10.1109/NSSMIC.2003.1352160

Filename

1352160