公开(公告)号：US06452164B1

公开(公告)日：2002-09-17

申请号：US09522573

申请日：2000-03-10

申请人： Emad Andarawis Andarawis ,  Paul Andrew Frank ,  Shankar Visranathan Guru ,  Ahmad Nadeem Ishaque ,  Douglas Ray Powell

发明人： Emad Andarawis Andarawis ,  Paul Andrew Frank ,  Shankar Visranathan Guru ,  Ahmad Nadeem Ishaque ,  Douglas Ray Powell

IPC分类号： G01T1208

CPC分类号： G01T1/208

摘要： An apparatus and method used to calibrate a gamma camera include an energy source and intensity selector and an energy weighting device. The energy source provides an energy output, such as an electrical current. The intensity selector is connected to the energy source and adjusts the energy output to a predetermined energy level that corresponds to an intensity of a predetermined radioactive source. The energy weighting device is also connected to the energy source and gamma camera, and the spatial compensator creates calibration signals from the energy output of the energy source. The calibration signals are supplied to the gamma camera and used during calibration of the gamma camera in lieu of energy signals produced by the gamma camera in response to a radioactive source.

摘要翻译： 用于校准γ照相机的装置和方法包括能量源和强度选择器以及能量加权装置。 能量源提供能量输出，例如电流。 强度选择器连接到能量源，并将能量输出调节到与预定放射源的强度对应的预定能量水平。 能量加权装置还连接到能量源和伽马相机，并且空间补偿器从能量源的能量输出创建校准信号。 校准信号被提供给伽马相机，并且在伽马相机的校准期间用于代替伽马相机响应于放射源产生的能量信号。