Title :
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
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;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on
Print_ISBN :
0-7803-7486-X
DOI :
10.1109/ICMMT.2002.1187823
