Rhenium lined Geiger-Mueller tube

Details Rhenium lined Geiger-Mueller tube Rhenium lined Geiger-Mueller tube

1985-05-01

1987-08-04

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250375, 313 93, H01J 4708

Patent

active

046848061

ABSTRACT:
A Geiger-Mueller tube includes a tubular, stainless steel cathode (A) which defines a chamber (B) therein. An anode (C) extends axially through the chamber in a spaced relationship with the cathode. A thin layer of rhenium (20) is plated on an interior surface (12) of the cathode. End caps (32, 36) and ceramic fittings (34, 38) hermetically seal the ends of the cathode tube. The cathode chamber is charged with a gaseous mixture including in primary part noble gases, such as neon and argon, and about 1-3% bromine or other halogen gases. The Geiger-Mueller tube with a rhenium plated cathode is relatively inexpensive to manufacture, provides excellent bromine and halogen degradation resistance at elevated temperatures, and provides superior, linear operating characteristics over a wide range of temperatures.

REFERENCES:
patent: 3342538 (1967-09-01), Mitrofanov
patent: 3892990 (1975-07-01), Mitrofanov
patent: 4359661 (1982-11-01), Mitrofanov
patent: 4501988 (1985-02-01), Mitrofanov et al.

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