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

fYear

2012

fDate

22-26 Oct. 2012

Firstpage

1099

Lastpage

1102

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas, Propagation & EM Theory (ISAPE), 2012 10th International Symposium on

Conference_Location

Xian

Print_ISBN

978-1-4673-1799-3

Type

conf

DOI

10.1109/ISAPE.2012.6408967

Filename

6408967