具有亚线性响应的液芯光波导剂量计的老化

International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry Pub Date : 1992-09-01 DOI:10.1016/1359-0197(92)90022-8

B.Lj. Šećerov, B.B. Radak

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引用次数: 0

摘要

简单的剂量计系统:led -液体光波导剂量计-中性owg -光电二极管由于光源的多色性，显示出吸光度与吸收剂量的亚线性响应。结果表明，如果测量灵敏度很高，并且未辐照化合物中的“剂量学”反应随时间(老化)自发发生，则几乎不建议使用具有亚线性响应的系统。用六羟乙基副罗斯苯胺氰化物溶液证明了这一点，根据分别测定的g值和摩尔吸收系数，推导了该体系在伽马辐射场中的理论行为。

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Liquid-core optical waveguide dosimetry ageing of a dosimeter with sub-linear response

The simple dosimeter system: LED-liquid optical waveguide dosimeter-neutral OWG-photodiode shows a sublinear response of absorbance vs absorbed dose due to the polychromaticity of the light source. It is shown that if the sensitivity of measurement is high and the “dosimetric” reaction in unirradiated compound takes place spontaneously with time (ageing), the use of a system with sublinear response can hardly be advised. This has been demonstrated with a solution of hexahydroxyethyl pararosaniline cyanide for which, based on the separately determined G-value and molar absorption coefficient, the theoretical behavior of the system in the gamma radiation field has been derived.

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International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry

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