Premium
54.1: Invited Paper: A Novel Cathode for CRTs based on Hopping Electron Transport
Author(s) -
Vaart N. C.,
Gorkom G. G. P.,
Hiddink M. G. H.,
Niessen E. M. J.,
Rademakers A. J. J.,
Rosink J. J. W. M.,
Winters R.,
Zwart S. T.,
Poel W. A. J. A.,
Wilk R.
Publication year - 2002
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1830207
Subject(s) - crts , funnel , cathode , electron , brightness , materials science , cathode ray tube , electron gun , optoelectronics , engineering physics , optics , computer science , physics , cathode ray , electrical engineering , engineering , mechanical engineering , computer graphics (images) , nuclear physics
The Hopping Electron Cathode (HEC) is a novel low‐drive electron source, which can be used in CRTs to reduce the cost of the set electronics and to improve the image quality. It is based on a self‐regulating secondary emission process enabling transport of electrons over insulating surfaces. The HEC utilizes this mechanism to compress electrons coming from a large conventional cathode into a small funnel structure of insulating material. The exit of the funnel serves as a high‐brightness electron source for a CRT and can be used to reduce the spot size.