Video signals radiation leakage from computer CRT electron beam

Author

Dong Shiwei ; Jiadong, Xu ; Wei, Wan ; Guorui, Chen

Author_Institution

Dept. of Electron. Eng., Northwestern Polytech. Univ., Xi´´an, China

fYear

2002

fDate

17-19 Aug. 2002

Firstpage

805

Lastpage

808

Abstract

The electron beam in computer CRT radiates an electromagnetic field. Firstly, the radiation of a travelling electron is discussed and then the acceleration field of the electron beam, and radiated field of its equivalent electric dipole, are analyzed. It is pointed out that they both bring risk to the information security of computer. By receiving radiation from a CRT electron beam, the content of VDU screen can be reconstructed.

Keywords

cathode-ray tubes; computer displays; electric moments; electromagnetic fields; electromagnetic interference; electron beams; image reconstruction; security of data; video signal processing; CRT EM field radiation; EMC; VDU screen image reconstruction; computer CRT electron beam video signal radiation leakage; computer data/information security; e-beam equivalent electric dipole radiated field; electron beam acceleration field; radiation reception; travelling electron radiation; Acceleration; Anodes; Cathode ray tubes; Electromagnetic fields; Electromagnetic radiation; Electron beams; Focusing; Information security; Powders; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on

Print_ISBN

0-7803-7486-X

Type

conf

DOI

10.1109/ICMMT.2002.1187823

Filename

1187823