where a is volume activity of target radionuclide, Bq·dm-3; nS is rate of pulse count, registered in measurement of liquid sample, s-1; nB is rate of count of measurement means background pulses, s-1; E is efficiency of measurement means, determined by measurement of known activity of beta-irradiating radionuclides in bidistillate, fraction; nCS is rate of pulse count registered in measurement of control source in bidistillate, s-1; nCS+S is rate of pulse count, registered in measurement of liquid sample together with control source, s-1; V is volume of measuring cuvette, dm-3.;EFFECT: simplification of determination of beta-irradiating radionuclide activity in liquid samples of complex chemical composition.;2 dwg"/> METHOD OF DETERMINING VOLUME ACTIVITY OF BETA-IRRADIATING RADIONUCLIDES IN WATER OBJECTS BY METHODS OF REGISTERING VAVILOV-CHERENKOV IRRADIATION WITH TAKING INTO ACCOUNT EFFECTS OF SUPPRESSION
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首页> 外国专利> METHOD OF DETERMINING VOLUME ACTIVITY OF BETA-IRRADIATING RADIONUCLIDES IN WATER OBJECTS BY METHODS OF REGISTERING VAVILOV-CHERENKOV IRRADIATION WITH TAKING INTO ACCOUNT EFFECTS OF SUPPRESSION

METHOD OF DETERMINING VOLUME ACTIVITY OF BETA-IRRADIATING RADIONUCLIDES IN WATER OBJECTS BY METHODS OF REGISTERING VAVILOV-CHERENKOV IRRADIATION WITH TAKING INTO ACCOUNT EFFECTS OF SUPPRESSION

机译：顾及抑制作用的VAVILOV-CHERENKOV辐照方法测定水物体中被贝他辐射的放射性核素的体积活性的方法

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FIELD: chemistry.;SUBSTANCE: samples are additionally measured with application of control source with known additional activity of beta-irradiating radionuclides, and content of target radionuclide is determined by formula <mrow><mi>a</mi><mo>=</mo><mfrac><mrow><msub><mi>n</mi><mrow><mi>C</mi><mi>S</mi></mrow></msub><mo>⋅</mo><mrow><mo>(</mo><mrow><msub><mi>n</mi><mi>S</mi></msub><mo>−</mo><msub><mi>n</mi><mi>B</mi></msub></mrow><mo>)</mo></mrow></mrow><mrow><mrow><mo>(</mo><mrow><msub><mi>n</mi><mrow><mi>C</mi><mi>S</mi><mo>+</mo><mi>S</mi></mrow></msub><mo>−</mo><msub><mi>n</mi><mi>S</mi></msub></mrow><mo>)</mo></mrow><mo>⋅</mo><mi>E</mi><mo>⋅</mo><mi>V</mi></mrow></mfrac><mo>,</mo></mrow> where a is volume activity of target radionuclide, Bq·dm-3; nS is rate of pulse count, registered in measurement of liquid sample, s-1; nB is rate of count of measurement means background pulses, s-1; E is efficiency of measurement means, determined by measurement of known activity of beta-irradiating radionuclides in bidistillate, fraction; nCS is rate of pulse count registered in measurement of control source in bidistillate, s-1; nCS+S is rate of pulse count, registered in measurement of liquid sample together with control source, s-1; V is volume of measuring cuvette, dm-3.;EFFECT: simplification of determination of beta-irradiating radionuclide activity in liquid samples of complex chemical composition.;2 dwg
机译：领域：化学物质;样品：使用具有已知额外活性的辐射β放射性核素的对照源另外测量样品，并通过公式 <！[CDATA [ < mi> a = n C S ⋅ （ n S − n B ） （ n C S + S - n S < / mi> ） ⋅ E ⋅ V ， ]]> <图像文件=“ 00000007.GIF” he =“ 14” imgContent =“ undefined “ imgFormat =” GIF“ wi =” 45“ /> 其中a是目标放射性核素的体积活度，Bq·dm -3 ; n S 是脉冲计数率，记录在液体样品的测量中，s -1 ; n B 是测量手段的平均值，即背景脉冲s -1 ; E是测量手段的效率，通过测量已知的二苯乙烯四甲酸酯级分中辐射β射线的放射性核素的活性来确定; n CS 是在双耳性耳蜗控制源测量中记录的脉冲计数率s -1 ; n CS + S 是脉冲计数速率，与控制源s -1 一起记录在液体样品的测量中; V是测量比色杯的体积，dm -3 。;效果：简化了复杂化学组成的液体样品中β辐射放射性核素活性的测定。2dwg

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