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Proceedings Paper

Monitoring of 60Co radiation-source parameters by optoelectronic instrumentation
Author(s): Branka Medved Rogina; Bozidar D. Vojnovic
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Paper Abstract

Problems of measurement of the radiation dose level and determining the position of the 60Co radiation source rods are discussed. The continuous gamma ray source 60Co is used for various scientific and industrial, food and medical, irradiation applications with doses up to 104 Gy. For a radiation sensor the PCS optical fiber could be used. By radiation effects testing PCS fiber is found to have adequate sensitivity in the visible range up to 1.47 multiplied by 10-1 dB/kmGy at high exposure, up to 103 Gy 60Co ionizing source irradiation. The position of the source rods is determined relative to the safety position, by the sensor linked with source position using a mechanical transmission system. The digital position sensor based on the optoelectronic impulse source is developed, with accuracy plus or minus 1 mm for the whole vertical position change of the source and great exploitation resistance particularly to vibrations.

Paper Details

Date Published: 9 October 1995
PDF: 6 pages
Proc. SPIE 2504, Environmental Monitoring and Hazardous Waste Site Remediation, (9 October 1995); doi: 10.1117/12.224136
Show Author Affiliations
Branka Medved Rogina, Ruder Boskovic Institute (Croatia)
Bozidar D. Vojnovic, Ruder Boskovic Institute (Croatia)


Published in SPIE Proceedings Vol. 2504:
Environmental Monitoring and Hazardous Waste Site Remediation
Tuan Vo-Dinh, Editor(s)

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