A 0.5-V sub-mW wireless magnetic tracking transponder for radiation therapy

Author

Loke, Wing-Fai ; Chen, Wu-Hsin ; Maleki, Teimour ; Khater, Mohammad Abu ; Ziaie, Babak ; Papiez, Lech ; Jung, Byunghoo

Author_Institution

Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA

fYear

2011

fDate

15-17 June 2011

Firstpage

172

Lastpage

173

Abstract

As the position of the tumor in a patient moves during radiation therapy, real-time knowledge of the position of the tumor is necessary in order to allow the maximum amount of radiation to be focused on the tumor and the minimum damage on the surrounding healthy tissues. A 0.5-V sub-mW wireless active transponder for a magnetic tracking system is designed in 130-nm CMOS technology to track the position of the tumor. The transponder consumes only 912 μW and an error of less than 5 mm is achieved with the tracking system.

Keywords

CMOS integrated circuits; biomedical electronics; detector circuits; low-power electronics; magnetic field measurement; magnetic sensors; magnetoresistive devices; radiation therapy; tracking; transponders; tumours; CMOS technology; power 912 muW; radiation therapy; size 130 nm; submilliwatt wireless magnetic tracking transponder; tumor position tracking; voltage 0.5 V; wireless active transponder; Biomedical applications of radiation; Magnetic field measurement; Magnetic fields; Transponders; Tumors; Wireless communication; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits (VLSIC), 2011 Symposium on

Conference_Location

Honolulu, HI

ISSN

2158-5601

Print_ISBN

978-1-61284-175-5

Type

conf

Filename

5986092