核医学仪器常规试验第4部分:放射性核素校准器

[中文适用范围]： 本部分IEC 61948涵盖了用于核医学的放射性核素校准器的常规测试。这些设备使用井型电离室和直接读取活度单位。性能参数的确定要求和方法在IEC 61303中描述。这些方法主要用于验收测试。 [外文原描述]： IEC TR 61948-4:2019 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC TR 61948-4:2019 covers the routine testing of radionuclide calibrators used in nuclear medicine. Such devices utilise ionisation chambers of the well type and a direct readout in units of activity. Requirements and specific methods to determine performance parameters are described in IEC 61303. These methods are primarily designed for acceptance testing. IEC TR 61948-4:2019 cancels and replaces the first edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical change with respect to the previous edition: the test method to determine system linearity has been updated to reflect the technical developments of radionuclide calibrators.