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Publication of JPS368295B1publicationCriticalpatent/JPS368295B1/ja
H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
H01J41/02—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas
H01J41/06—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of cold cathodes
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Measuring Fluid Pressure
(AREA)
Measurement Of Radiation
(AREA)
Other Investigation Or Analysis Of Materials By Electrical Means
(AREA)