Deji Shizuhiko, Nishizawa Kunihide
Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan.
Appl Radiat Isot. 2005 Jun;62(6):951-3. doi: 10.1016/j.apradiso.2004.11.008.
High-frequency electromagnetic fields in the 120 kHz band emitted from card readers for access control systems caused abnormally high doses on electronic pocket dosimeters (EPDs). All EPDs recovered their normal performance by resetting after the exposure ceased. The electric and magnetic immunity levels of the EPDs were estimated by using the distances needed to prevent electromagnetic interference.
用于门禁系统的读卡器发出的120千赫频段高频电磁场，在电子袖珍剂量仪（EPD）上造成了异常高剂量。暴露停止后，所有EPD通过重置恢复了其正常性能。通过使用防止电磁干扰所需的距离来估计EPD的电磁抗扰度水平。
