Ethylene quenched multi-cathode geiger-mueller tube

Details Ethylene quenched multi-cathode geiger-mueller tube Ethylene quenched multi-cathode geiger-mueller tube

H - Electricity

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J

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H01J 47/08 (2006.01) H01J 9/00 (2006.01) H01J 47/00 (2006.01)

Patent

CA 1189639

ETHYLENE QUENCHED MULTI-CATHODE GEIGER-MUELLER TUBE ABSTRACT OF THE DISCLOSURE A Geiger-Mueller ("GM") tube containing a noble gas mixture of about 98-99.9% Ne and the remainder A, and in addition containing from 2- 5% ethylene as the quench gas, provides high stability and high count rates in the temperature range from about -100°C to about 200°C. When this GM tube is provided with a sleeve-and-screen liner in electrical contact with an outer cathode, the tube exhibits exceptional sensitivity. The sleeve may be continuous deposit of a heavy metal having an atomic number from about 73 to about 83, deposited on the inner surface of the cathode tube, or the sleeve may be a foil liner of tungsten or tantalum. The screen is woven of metal wire on which is deposited d heavy metal.

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