Tungsten Alloy Foils in Geiger-Mueller Radiation Detector

In a Geiger-Mueller radiation detector including a relatively large surface stainless steel cathode, a coating of chromium oxide on the interior surface of said cathode, an anode disposed in spaced apart relationship to said cathode in a sealed chamber, and the improvement comprising a liner in contact with the chromium oxide layer and consisting of a thin metallic tungsten alloy foil.

Due to the tungsten content of ≥ 90 wt.% the material exhibits excellent X-ray absorption. Furthermore tungsten alloy with respect to aging and degradation under X-ray radiation. The developed technology grantee that tungsten alloy foil thickness can be produced down to below 100μm. In Geiger-Mueller radiation detector, which the tungsten alloy foil has a thickness between about 1 and 2 mils.  

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