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Proceedings Paper

Characterization of Cerenkov radiation generated in silica and plastic optical fibers
Author(s): K. W. Jang; S. H. Shin; S. G. Kim; W. J. Yoo; Y. H. Ji; B. Lee
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Paper Abstract

Cerenkov radiation, which is produced by charged particles that pass through optical fibers with a velocity greater than that of light, is frequently regarded as a severe noise signal in a fiber-optic radiation sensor consisting of a scintillator and an optical fiber. Since the spectral range of Cerenkov radiation is very broad and covers that of light outputs from a scintillator, Cerenkov radiation generated in optical fibers is also acquired by a photodetector. However, Cerenkov radiation can be a significant signal when we measure the intensities of Cerenkov radiation generated from fixed length of optical fibers because it is one of the signals induced by interactions between radiations and optical fibers. In this study, gamma-ray induced Cerenkov radiation generated in silica and plastic optical fibers was measured in order to select an efficient optical fiber for producing Cerenkov radiation. The intensities and the spectra of Cerenkov radiation generated in the optical fibers were measured using a spectrometer. As the results, the intensities of Cerenkov radiation generated in silica and plastic optical fibers have peak wavelengths at approximately 500 nm. Also, the intensity of Cerenkov radiation obtained using a plastic wavelength shifting fiber was the highest among all sample optical fibers.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91571G (2 June 2014); doi: 10.1117/12.2059461
Show Author Affiliations
K. W. Jang, Konkuk Univ. (Korea, Republic of)
S. H. Shin, Konkuk Univ. (Korea, Republic of)
S. G. Kim, Konkuk Univ. (Korea, Republic of)
W. J. Yoo, Konkuk Univ. (Korea, Republic of)
Y. H. Ji, Korea Institute of Radiological and Medical Sciences (Korea, Republic of)
B. Lee, Konkuk Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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