Scintillating fiber optics and their application in radiographic systems

Author

Shao, Hua ; Miller, Don W. ; Pearsall, C. Robert

Author_Institution

Nucl. Eng. Program, Ohio State Univ., Columbus, OH, USA

Volume

38

Issue

2

fYear

1991

fDate

4/1/1991 12:00:00 AM

Firstpage

845

Lastpage

857

Abstract

Research to evaluate scintillating fiber optics (SFOs) as X-ray radiation imaging detectors is presented. Scintillating fiber optics combines scintillating material with a dielectric waveguide. This configuration permits an increase, in thickness of the scintillating material without significant dispersion of light, therefore preserving spatial resolution with increased detection efficiency. This characteristic is advantageous for imaging of high-energy X-rays. A model based on the basic physics of SFOs and the Monte Carlo modeling of radiation was developed. The model provides a basis for analysis of the performance characteristics of SFOs. An experimental evaluation of the performance of SFOs as radiation imaging detectors is reported. In this study, two types of Tb₂O₃-based SFOs were studied using monoenergetic gamma rays and low- and high-energy X-ray sources. The study evaluated the overall detector efficiency by combining experimental measurements and analytical Monte Carlo methods

Keywords

X-ray detection and measurement; scintillation counters; Monte Carlo modeling; Tb₂O₃; X-ray radiation imaging detectors; X-ray sources; detector efficiency; dielectric waveguide; monoenergetic gamma rays; radiographic systems; scintillating fiber optics; Dielectric materials; Optical fibers; Optical materials; Optical waveguides; Radiation detectors; Radiation imaging; Radiography; X-ray detection; X-ray detectors; X-ray imaging;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.289399

Filename

289399