An approach to evaluate the efficiency of γ-ray detectors to determine the radioactivity in environmental samples |
| |
作者姓名: | Mohamed. S. Badawi Ahmed. M. El-Khatib Samah. M. Diab Sherif. S. Nafee Ekram. A. El-Mallah |
| |
作者单位: | Physics Department, Faculty of Science, Alexandria University, 21511 Alexandria, Egypt |
| |
摘 要: | This work provides an approach to determine the efficiency of γ-ray detectors with a good accuracy in order to determine the concentrations of either naturally occurring or artificially prepared radionuclides. This approach is based on the efficiency transfer formula(ET), the effective solid angles, the self- absorptions of the source matrix, the attenuation by the source container and the detector housing materials on the detector efficiency. The experimental calibration process was done using radioactive(Cylindrical Marinelli) sources, in different dimensions,that contain aqueous152 Eu radionuclide. The comparison point to a fine agreement between the experimental measured and calculated efficiencies for the(NaI HPGe) detectors using volumetric radioactive sources.
|
关 键 词: | γ-ray detector efficiency efficiency transfer effective solid angles radioactive source |
收稿时间: | 2013-07-30 |
本文献已被 CNKI 等数据库收录! |
| 点击此处可从《中国物理 C》浏览原始摘要信息 |
|
点击此处可从《中国物理 C》下载全文 |
|