公开(公告)号：US20140077073A1

公开(公告)日：2014-03-20

申请号：US13616508

申请日：2012-09-14

Applicant: Hieu Dinh VU ,  Alexander Joseph ESIN ,  Jia Ming LU

Inventor： Hieu Dinh VU ,  Alexander Joseph ESIN ,  Jia Ming LU

IPC: G01T1/20

CPC classification number: G01T1/40 ,  G01J5/522 ,  G01T1/1642 ,  H04N5/33

Abstract: A method, apparatus, and computer program products for controlling gain in a scintillation detector. Calibration count rates, each representing an integral count rate above a different threshold, are obtained from a photomultiplier tube. Photomultiplier tube gain is adjusted if a result from evaluating a relationship of calibration count rates varies from an expected result based on integral count rate versus threshold for a reference peak in the energy spectrum of the radiation source. An additional, different relationship may also be evaluated and an additional gain adjustment performed when a result indicates that the calibration count rates are not from the reference peak. A same radiation source may be used for collecting test counts and calibration counts.

Abstract translation: 一种用于控制闪烁检测器中的增益的方法，装置和计算机程序产品。 从光电倍增管获得校准计数率，每个代表高于不同阈值的积分计数率。 如果评估校准计数率的关系的结果与基于辐射源的能谱中的参考峰的积分计数速率与阈值的预期结果不同，则调整光电倍增管增益。 还可以评估另外的不同的关系，并且当结果指示校准计数率不是来自参考峰时执行附加的增益调整。 可以使用相同的辐射源来收集测试计数和校准计数。

公开(公告)号：US09091772B2

公开(公告)日：2015-07-28

申请号：US13616508

申请日：2012-09-14

Applicant: Hieu Dinh Vu ,  Alexander Joseph Esin ,  Jia Ming Lu

Inventor： Hieu Dinh Vu ,  Alexander Joseph Esin ,  Jia Ming Lu

IPC: G01T1/40 ,  G01T1/164 ,  G01J5/52 ,  H04N5/33

CPC classification number: G01T1/40 ,  G01J5/522 ,  G01T1/1642 ,  H04N5/33

Abstract: A method, apparatus, and computer program products for controlling gain in a scintillation detector. Calibration count rates, each representing an integral count rate above a different threshold, are obtained from a photomultiplier tube. Photomultiplier tube gain is adjusted if a result from evaluating a relationship of calibration count rates varies from an expected result based on integral count rate versus threshold for a reference peak in the energy spectrum of the radiation source. An additional, different relationship may also be evaluated and an additional gain adjustment performed when a result indicates that the calibration count rates are not from the reference peak. A same radiation source may be used for collecting test counts and calibration counts.

Abstract translation: 一种用于控制闪烁检测器中的增益的方法，装置和计算机程序产品。 从光电倍增管获得校准计数率，每个代表高于不同阈值的积分计数率。 如果评估校准计数率的关系的结果与基于辐射源的能谱中的参考峰的积分计数速率与阈值的预期结果不同，则调整光电倍增管增益。 还可以评估另外的不同的关系，并且当结果指示校准计数率不是来自参考峰时执行附加的增益调整。 可以使用相同的辐射源来收集测试计数和校准计数。