Some external neutron and gamma source experiments were carried out to study the origin of the background.
还应用外置伽玛源和中子源进行了实验，以判断本底的来源。
In the process of the calibration and verification of gamma-ray spectrometer. the background of the instrument is of important effect on the verification results.
伽玛能谱仪在校准检定过程中，仪器本底对检定结果有着重要的影响。
In the process of the calibration and verification of gamma-ray spectrometer. the background of the instrument is of important effect on the verification results.
伽玛能谱仪在校准检定过程中，仪器本底对检定结果有着重要的影响。
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