Method and apparatus for defining radiation-opaque pathways with

Details Method and apparatus for defining radiation-opaque pathways with Method and apparatus for defining radiation-opaque pathways with

1974-10-21

1976-07-13

Borchelt, Archie R.

Radiant energy

Radiation controlling means

Shields

250253, 250269, G01V 500

Patent

active

039696308

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.

REFERENCES:
patent: 2716705 (1955-08-01), Zinn
patent: 2719823 (1955-10-01), Zinn
patent: 3127512 (1964-03-01), Monaghan
patent: 3132998 (1964-05-01), Long et al.

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