著者

中川 清隆 松山 寛子 原田 元 二神 成一 谷藤 泰正 天木 嘉清 古幡 博

出版者

日本医療機器学会

雑誌

医科器械学 (ISSN:0385440X)

巻号頁・発行日

vol.76, no.3, pp.83-89, 2006-03-01

参考文献数

12

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The Jikei University Hospital is located about 600m from the Tokyo Tower in the central area of Tokyo. This means that the patients and staff members of the hospital may be exposed to strong electromagnetic field intensities (EMFI) radiated from the tower antenna and to various telecommunication EMFI that exist in a large city like Tokyo. EMFI was measured at eight points of the hospital buildings facing the tower. Two types of antenna were used to cover the frequency range from 30MHz to 1.5GHz. EMFI was calculated from every peak value in the frequency spectrum recorded logarithmically. Every peak intensity was less then 2μW/cm at the maximum of the whole spectrum, which is a much lower value than the standard value specified by the Japanese 'Radio Radiation Protection Guidelines For the Human Body in Electromagnetic Fields'. Additionally the total value of the whole spectrum was less than 6μW/cm at all eight points. It is concluded from these actual results of measurement that our hospital does not need to perform any urgent safety measures to protect patients and staff members from the various electromagnetic environments, including strong broadcasting waves from Tokyo Tower.