PHOTOMULTIPLIER FOR WELL-LOGGING TOOL

A photomultiplier includes a tube and plurality of dynodes within the tube and including at least one first dynode and at least one second dynode. A respective insulator is between adjacent pairs of dynodes. The at least one first dynode includes a conductive outer ring and a medial conductive membe...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	STEPHENSON, KENNETH E
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BASIC ELECTRIC ELEMENTS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY FIXED CONSTRUCTIONS MEASUREMENT OF NUCLEAR OR X-RADIATION MEASURING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TESTING
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