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Studies of Field Strength Distribution and Protection Strategy on Electromagnetic Radiation of Radar |
WANG Xiu-de, LI Qi-hui, TANG Mu-tao, WANG Qian, GU Qia-min |
Center for Disease Control and Prevention of Jinan Military Area Command, Jinan 250014 China |
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Abstract Objective To investigate the electromagnetic radiation distribution of radar for establishing hygienic protection strategy. Methods The power densities were measured in work areas and surroundings of radar stations by electromagnetic field meter according to the relative military standards, and the safe distances from antenna systems were calculated. Results The power densities of 2 points inside radar rooms and 3 points outside rooms exceeded the exposure limits in work areas,while 1 point in inhabitant areas exceeded the environment limits in 5 radar stations measured. All buildings surrounding radar stations met the requirements of safe distances. Conclusion The radiation in radar room is mainly from the radar equipment leak. But in surrounding environment, the radiation comes from antenna, and varieties with the antenna rotating. The protection strategy should include antenna construction, work-area management, equipment safeguard and occupational health guard.
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Received: 15 December 2014
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