GEIGER-MULLER TUBE
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United States of America Patent
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Sep 1, 2016
app pub date -
Oct 10, 2014
filing date -
Oct 11, 2013
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Abstract
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.
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