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Proceedings Paper

A multi-sensor dosimeter for brachytherapy based on radioluminescent fiber sensors
Author(s): A. Correia; S. Chiquita; N. Sooraj Hussain; Rui Pirraco; C. C. Rosa
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Paper Abstract

High-precision dosimeters are needed in brachytherapy treatments to ensure safe operation and adequate working conditions, to assess the correspondence between treatment planning and dose delivery, as well as to monitor the radiation dose received by patients. In this paper we present the development of a multi-sensor dosimeter platform targeted for brachytherapy environments. The performance of different scintillating materials response is assessed. The emission bands of most common scintillator materials used in ionizing radiation detection are typically below 550 nm, thus they may be prone to stem effect response. To avoid this effect we propose the use of scintillators with longer wavelength emission. Samples of neodymium doped glasses are evaluated as new infrared radioluminescent scintillators for real-time dosimeters, namely lithium lead boron silver (LLB4Ag) and lithium bismuth boron silver (LBiB4Ag) glasses. Their response is compared with the response of organic scintillator BCF-60 with a 530nm response.

Paper Details

Date Published: 20 May 2013
PDF: 4 pages
Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87941S (20 May 2013); doi: 10.1117/12.2026837
Show Author Affiliations
A. Correia, INESC Porto (Portugal)
S. Chiquita, INESC Porto (Portugal)
N. Sooraj Hussain, INESC Porto (Portugal)
Univ. do Porto (Portugal)
Rui Pirraco, IPOFG Porto (Portugal)
C. C. Rosa, INESC Porto (Portugal)
Univ. do Porto (Portugal)

Published in SPIE Proceedings Vol. 8794:
Fifth European Workshop on Optical Fibre Sensors
Leszek R. Jaroszewicz, Editor(s)

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