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Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jeol Ltd
Original Assignee
Jeol Ltd
Nihon Denshi KK
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Filing date
Publication date
Application filed by Jeol Ltd, Nihon Denshi KKfiledCriticalJeol Ltd
Priority to JP10186675ApriorityCriticalpatent/JPS5226275A/en
Publication of JPS5226275ApublicationCriticalpatent/JPS5226275A/en
H01J47/00—Tubes for determining the presence, intensity, density or energy of radiation or particles
H01J47/06—Proportional counter tubes
Landscapes
Measurement Of Radiation
(AREA)
Electron Tubes For Measurement
(AREA)
Abstract
PURPOSE:To change the temperature of a proportional counter tube against variations in gas density to keep the density always constant thereby facilitating control and allowing reduction in apparatus size.