公开(公告)号：US3883742A

公开(公告)日：1975-05-13

申请号：US38309773

申请日：1973-07-27

Applicant: PACKARD INSTRUMENT CO INC

Inventor： OLSON ROBERT E ,  THUMIM ARNOLD DAVID

IPC: G01T7/08

CPC classification number: G01T7/08

Abstract: A scintillation counter, particularly for counting gamma ray photons, includes a massive lead radiation shield surrounding a sample-receiving zone. The shield is disassembleable into a plurality of segments to allow facile installation and removal of a photomultiplier tube assembly, the segments being so constructed as to prevent straight-line access of external radiation through the shield into radiation-responsive areas. Provisions are made for accurately aligning the photomultiplier tube with respect to one or more sample-transmitting bores extending through the shield to the sample receiving zone. A sample elevator, used in transporting samples into the zone, is designed to provide a maximum gamma-receiving aspect to maximize the gamma detecting efficiency.

Abstract translation: 闪烁计数器，特别是用于计数伽马射线光子的闪烁计数器包括围绕样品接收区的大量铅射线屏蔽。 屏蔽可拆卸成多个段，以允许容易地安装和移除光电倍增管组件，这些段被构造成防止外部辐射通过屏蔽件直接进入辐射响应区域。 提供了将光电倍增管相对于一个或多个穿过屏蔽件延伸到样品接收区的样品传送孔准确对准的规定。 用于将样品运送到该区域中的样品升降机被设计成提供最大的γ接收方面以最大化伽马检测效率。

公开(公告)号：US3883741A

公开(公告)日：1975-05-13

申请号：US38308573

申请日：1973-07-27

Applicant: PACKARD INSTRUMENT CO INC

Inventor： THUMIM ARNOLD DAVID

IPC: G01T7/08

CPC classification number: G01T7/08

Abstract: A scintillation counter, particularly for counting gamma ray photons, includes a massive lead radiation shield surrounding a sample-receiving zone. The shield is disassembleable into a plurality of segments to allow facile installation and removal of a photomultiplier tube assembly, the segments being so constructed as to prevent straight-line access of external radiation through the shield into radiation-responsive areas. Provisions are made for accurately aligning the photomultiplier tube with respect to one or more sample-transmitting bores extending through the shield to the sample receiving zone. A sample elevator, used in transporting samples into the zone, is designed to provide a maximum gamma-receiving aspect to maximize the gamma detecting efficiency.

Abstract translation: 闪烁计数器，特别是用于计数伽马射线光子的闪烁计数器包括围绕样品接收区的大量铅射线屏蔽。 屏蔽可拆卸成多个段，以允许容易地安装和移除光电倍增管组件，这些段被构造成防止外部辐射通过屏蔽件直接进入辐射响应区域。 提供了将光电倍增管相对于一个或多个穿过屏蔽件延伸到样品接收区的样品传送孔准确对准的规定。 用于将样品运送到该区域中的样品升降机被设计成提供最大的γ接收方面以最大化伽马检测效率。