Title :
In vivo quasi-distributed temperature sensing with fibre Bragg gratings
Author :
Patterson, B.A. ; Sampson, D.D. ; Krug, P.A. ; Jones, S.K.
Author_Institution :
Dept. of Electr. & Electron. Eng., Western Australia Univ., Nedlands, WA, Australia
Abstract :
Summary form only given. We describe a quasi-distributed temperature sensor consisting of an array of fibre Bragg gratings (FBGs), illuminated by a superluminescent diode (SLD) and interrogated by a fibre Fabry-Perot (FFP) tunable filter. The sensor has been tested in vivo on tumours in rabbit livers that were treated by hyperthermia. The hyperthermia was produced by hysteresis heating of magnetic iron-oxide particles injected into the rabbit liver. This system improves on FBG temperature sensors reported. elsewhere, in that it combines in vivo operation, quasi-distributed sensing, and stability of 0.1/spl deg/C.
Keywords :
Bragg gratings; Fabry-Perot resonators; biological techniques; biomedical equipment; biomedical measurement; fibre optic sensors; hyperthermia; liver; optical arrays; optical fibre filters; radiation therapy; superluminescent diodes; temperature distribution; temperature sensors; tumours; array; fibre Bragg grating temperature sensors; fibre Bragg gratings; fibre Fabry-Perot tunable filter; hyperthermia; hysteresis heating; in vivo operation; in vivo quasi-distributed temperature sensing; in vivo study; magnetic Fe-oxide particles; quasi-distributed sensing; quasi-distributed temperature sensor; rabbit fivers; rabbit liver; stability; superluminescent diode; tumours; Bragg gratings; Fiber gratings; In vivo; Magnetic separation; Optical fiber sensors; Optical fiber testing; Rabbits; Sensor arrays; Superluminescent diodes; Temperature sensors;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-662-1
DOI :
10.1109/CLEO.2001.947973
