Title :
The electromagnetic environment assessment of nuclear magnetic resonance device in hospital
Author :
Lu Fu ; Zhaowen Yan ; Guochang Shi
Author_Institution :
Dept. of Electron. Inf. Eng., Beihang Univ., Beijing, China
Abstract :
The purpose of this paper is to assess electromagnetic environment of nuclear magnetic resonance (NMR) device in hospital, in considering of the proposed construction of subway lines which would pass the hospital. A method is proposed to quantitatively analyze and evaluate electromagnetic interference of NMR device. It is derived through the analysis and evaluation: when subway line passes through the hospital, the field strength surrounding the hospital can reach 30dBuT to 40dBuT at several frequencies, which is greater than 20dBuT-the threshold of the NMR device. It can ensure the NMR equipment working normally, after applying an electromagnetic shielding measure which makes sure that the electromagnetic shielding effectiveness reaches 80dB.
Keywords :
biomedical NMR; biomedical equipment; electromagnetic interference; electromagnetic shielding; hospitals; NMR device; NMR equipment; electromagnetic environment assessment; electromagnetic interference; electromagnetic shielding measure; field strength; hospital; nuclear magnetic resonance device; subway lines; Analytical models; Antennas; Green products; Hospitals; Magnetic fields; Nuclear magnetic resonance; NMR device; electromagnetic environment; test;
Conference_Titel :
Antennas, Propagation & EM Theory (ISAPE), 2012 10th International Symposium on
Conference_Location :
Xian
Print_ISBN :
978-1-4673-1799-3
DOI :
10.1109/ISAPE.2012.6408967
