公开(公告)号：US3969630A

公开(公告)日：1976-07-13

申请号：US516340

申请日：1974-10-21

Applicant: Obie M. Langford ,  Michael Bagnasco

Inventor： Obie M. Langford ,  Michael Bagnasco

IPC: G01V5/10 ,  G21F3/00 ,  G01V5/00

CPC classification number: G21F3/00 ,  G01V5/101

Abstract: Disclosed is a method and apparatus for providing pathways for electrical conductors and conduits through radiation shielding without effectively diminishing the degree of shielding. A pathway is formed by providing a helical groove on the surface of a cylindrical shielding member which is fitted with close tolerance inside a tubular housing. Specific embodiments provide for the passage of electrical conductors through a cylinder of shielding material positioned within a well logging sonde between a radiation source and a radiation detector. One or more grooves may be provided in the shielding member. The shielding member may be constructed of two or more individual, coaxially aligned, abutting, cylindrical shielding submembers. The shielding submembers making up a shielding member may be of the same or different shielding material.

Abstract translation: 公开了一种用于通过辐射屏蔽提供电导体和导管的通路的方法和装置，而不会有效地减小屏蔽程度。 通过在圆柱形屏蔽构件的表面上设置螺旋槽形成通道，该圆柱形屏蔽构件在管状壳体内装配有紧公差。 具体实施例提供电导体通过位于辐射源和辐射检测器之间的测井探头内的屏蔽材料的气缸。 可以在屏蔽构件中设置一个或多个凹槽。 屏蔽构件可以由两个或更多个单独的，同轴对准的邻接的圆柱形屏蔽子构件构成。 构成屏蔽构件的屏蔽构件可以具有相同或不同的屏蔽材料。