GEIGER-MULLER TUBE

摘要

An improved Geiger Müller tube includes an enclosed container having at least one metal wall forming a cathode, the metal wall including a layer of platinum, a metal anode spaced from the cathode, and elements to apply a voltage between the anode and the cathode, the enclosed container being filled with a gas mixture including a noble gas and a halogen including chlorine, bromine or a mixture thereof to a pressure of less than 0.2 atmospheres, characterized in that the platinum includes a surface layer of platinum tetrachloride and/or platinum tetrabromide having a thickness of at least 10 nm.

主权项

1. A Geiger-Müller tube comprising an enclosed container having at least one metal wall forming a cathode, said metal wall comprising a layer of platinum, a metal anode spaced from said cathode, and means to apply a voltage between said anode and said cathode, said enclosed container being filled with a mixture of a noble gas and a halogen comprising chlorine, bromine or a mixture thereof, to a pressure of equal to or less than 0.2 atmospheres, wherein said platinum comprises a surface layer of platinum tetrachloride and/or platinum tetrabromide.