RF coil system in magnetic resonance imaging apparatus

Details RF coil system in magnetic resonance imaging apparatus RF coil system in magnetic resonance imaging apparatus

1989-05-17

1991-01-15

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324318, G01R 3320

Patent

active

049856804

ABSTRACT:
An RF coil system having (2n+1)/4 (n: zero or a positive integer) wavelength cables arranged in both ends of a PIN diode conneted in series with an RF coil, and a PIN diode is DC-biased via the aforementioned cable. A multi-band RF system constructed by providing a plurality of such wavelength cables corresponding to the frequencies of an RF pulse in obtaining an MR signal. Since the cable is, for example, of a coaxial type, the length of the cable is easy to adjust and it is thus possible to avoid coupling to the ambient environment.

REFERENCES:
patent: 4129822 (1978-12-01), Traficante
patent: 4638252 (1987-01-01), Bradshaw
patent: 4712560 (1987-12-01), Schaefer
patent: 4717881 (1988-01-01), Flugan
patent: 4725779 (1988-02-01), Hyde et al.
patent: 4737712 (1988-04-01), Stormont
patent: 4763076 (1988-08-01), Arakawa

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