| 申成瑶.阴影式屏蔽全身计数器的效率刻度与定量方法的改善[J].中华放射医学与防护杂志,1981,1(4):32-39 |
| 阴影式屏蔽全身计数器的效率刻度与定量方法的改善 |
| CALIBRATION OF THE DETECTIVE EFFICIENCY OF A SHADOW-SHIELD WHOLE-BODY COUNTER AND THE IMPROVEMENT OF THE QUANTITATIVE MEASUREMENT |
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| By means of a water-filled phantom the detective efficiency of a shadow-shieldvhole-body counter was calibrated.The effidency curves for different ratio of the weight and height of the body with lifferent energies of γ-quantum under three conditions were obtained and compared
vith those of the "reference man" phantom.In additon,a controlled variable speed canning method was recommended,which might improve the uniformity of the space esponse and reduce the effect of uniformity of the distribution of radionuclide in body,and hence the accuracy of the measurement was improved. |
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