Title:
ELECTRON RADIATING DEVICE AND METHOD OF PRODUCING SAME
Document Type and Number:
Japanese Patent JPS60112224
Kind Code:
A
Abstract:
An electron discharge device, such as a photomultiplier tube, has an evacuated envelope with an alkali-antimonide photoemissive cathode therein. A thermionic emission-reduction coating is disposed within the envelope. The coating alloys with the constituents of the photoemissive cathode to reduce thermionic emission. The thermionic emission reduction coating is formed preferably of indium; however, indium oxide may also be used.
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Inventors:
RICHIYAADO DEERU FUORUKUNA
ROBAATO EDOUIN MATSUKUHOUZU
ROBAATO EDOUIN MATSUKUHOUZU
Application Number:
JP22663384A
Publication Date:
June 18, 1985
Filing Date:
October 26, 1984
Export Citation:
Assignee:
RCA CORP
International Classes:
H01J40/02; H01J1/34; H01J9/12; H01J40/06; H01J43/04; H01J43/08; (IPC1-7): H01J1/34; H01J9/12; H01J40/06; H01J43/08
Attorney, Agent or Firm:
Satoshi Shimizu
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