Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1731/37A
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compteurs Schlumberger SAfiledCriticalCompteurs Schlumberger SA
Publication of GB494329ApublicationCriticalpatent/GB494329A/en
494,329. Electron multipliers. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Jan. 20, 1937, No. 1731. Void. Convention date, Jan. 21, 1936. [Class 39 (i)] Electrons from a cathode K are accelerated by cathodes G<1> .. G<4> formed as grids or diaphragms and emitting secondary electrons and the stream is collected by an anode A. The electrons are focused by electrodes or a magnetic field. The stream may be modulated by a grid G<1> .. G<4> or by separate grids screened from the grids G<1> .. G<4> by further grids. The cathode K may be photo-electric and illuminated from the front or rear and may be planar or curved and inclined or perpendicular to the axis of the tube. The output circuit may be connected to a grid instead of to the anode.
GB1731/37A1936-01-211937-01-20Improvements in or relating to electron multipliers
ExpiredGB494329A
(en)