公开(公告)号：US3862425A

公开(公告)日：1975-01-21

申请号：US33826273

申请日：1973-03-05

Applicant: NAT RES DEV

Inventor： MYERS MELVYN JOHN

IPC: G01T1/164 ,  G01T1/29 ,  G21K1/02 ,  G01T1/20

CPC classification number: G01T1/2985 ,  A61B6/4258 ,  G01T1/1642 ,  G21K1/025

Abstract: A radiation position detector is described particularly for detecting the source of gamma radiation over which a gamma camera is scanned. Electrical signals are generated representing the coordinates of the focal point of the gamma camera and of the received radiation. The received radiation signals are multiplied by a compensating factor to correct for a particular depth of radiation so that radiation starting at that depth is in focus. The corrected signals and the camera co-ordinate signals are combined so that a picture can be obtained in focus for the particular depth. Multiplexing may be used to provide correction for a plurality of depths.

Abstract translation: 特别地描述了一种辐射位置检测器，用于检测伽马照相机被扫描的伽马辐射源。 产生电信号，表示γ照相机的焦点和所接收的辐射的坐标。 所接收的辐射信号乘以补偿因子以校正特定的辐射深度，使得从该深度开始的辐射是焦点。 校正的信号和相机坐标信号被组合，使得可以获得针对特定深度的图像。 多路复用可用于为多个深度提供校正。