遠方界ばく露の妊婦と子供に対する人体数値モデルにおける全身平均SARとボクセルSARの定量関係

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2013/10/01

タイトル(英語): Quantitative Relationship between Whole Body Averaged SARs and Voxel SARs in Numerical Human Models of Pregnant Woman and 3-years Child for Far-Field Exposure

著者名: 浅山　遼太（名古屋工業大学大学院），王　建青（名古屋工業大学大学院），藤原　修（名古屋工業大学大学院）

著者名(英語): Ryota Asayama (Graduate School of Engineering, Nagoya Institute of Technology), Jianqing Wang (Graduate School of Engineering, Nagoya Institute of Technology), Osamu Fujiwara (Graduate School of Engineering, Nagoya Institute of Technology)

キーワード: 遠方界ばく露，ドシメトリ，妊婦モデル，幼児モデル，全身平均SAR，ボクセルSAR　　far-field exposure，dosimetry，pregnant woman model，infant model，whole-body average SAR，voxel SAR

要約(英語): Safety standards and guidelines for radio-frequency exposure are being set based on whole-body averaged SARs (WBA-SARs) and localized average SARs. In Japan, the WBA-SAR and 1g localized average SAR are set at 0.4W/kg and at 8W/kg, respectively, except for the arms and legs and surface of body. The safety limits of WBA-SARs were determined from observing the behavior destruction of animals for radio-frequency exposure, but those of localized average SARs were determined under the assumption that a spatial peak SAR value does not exceed 20-fold WBA-SARs without their biological evidences. In this paper, to confirm whether or not the above assumption is valid, we calculated WBA-SARs and voxel SARs in the frequency range from 50MHz to 2GHz in anatomical-based human numerical models for pregnant woman and 3-years child for vertically and horizontally polarized far-field exposures, and derived the histogram and cumulative relative frequency of voxel SARs to obtain the quantitative relationship between WBA-SARs and voxel SARs. As a result, we found that 99.90-percentile voxel SARs are not exceeding 20-fold WBA-SARs, while 99.00-percentile voxel SARs are smaller than 10-fold WBA-SARs in both human models.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.133 No.10 （2013） 特集：リソグラフィとその関連技術・応用技術

本誌掲載ページ: 537-542 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/133/10/133_537/_article/-char/ja/