GEIGER-MULLER COUNTER TUBE AND RADIATION MEASUREMENT APPARATUS
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United States of America Patent
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Issued Date -
Jun 4, 2015
app pub date -
Dec 3, 2014
filing date -
Dec 4, 2013
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Abandoned
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Abstract
A Geiger-Muller counter tube includes a cylindrical enclosing tube, an anode electrode, a cylindrical cathode electrode, a bead, an inert gas, and a quenching gas. The cylindrical enclosing tube has a sealed space. The anode electrode is disposed inside the space and formed in a rod shape. The cylindrical cathode electrode surrounds a peripheral area of the anode electrode inside the space. The bead is formed of an insulator and having a through-hole in the center, the anode electrode passing through the through-hole. The bead is secured to the anode electrode in a position where the anode electrode is surrounded by the cathode electrode. The inert gas and the quenching gas are sealed inside the space. The bead prevents a direct contact between the anode electrode and the cathode electrode.
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