توضیحات
Technical Specifications of XGY 0.4 Tesla ( OPER – 0.4T ) System
Magnet
Type: Permanent magnet, eddy current free, open C type & self-temperature control
Field strength: 0.4T±3%
Field homogeneity: <±2ppm(FWHH)/20cm DSV
<2ppm(VRMS)/40cm DSV
Active shim: <±1ppm(FWHH)/20cm spherical surface DSV
<±2ppm(VRMS)/40cm spherical surface DSV Vertical gap distance: 40cm
Gradient system
Amplifier:
Field strength: single axis 18mT/m, effective 30.6mT/m
Slew rate: single axis 55mT/m/ms, effective 93.5mT/m/ms
Linearity: 40cm*40cm*38cm ellipsoid<5%
RF transmitting & receiving system
Type of transmitter & receiver: Digital
Frequency range: DC-22MHZ Maximum receiver bandwidth: 1.25MHZ Pre-amplifier: gain 30dB
Noise figure: 0.3dB RF amplifier: ≥6kw
RF transmitting coil: panel transmitting coil
RF receiving coil: quadrature coil
Auto pre-scan function
Auto RF correction, auto frequency lock, auto gain, auto coil identification, auto coil tuning, active shim
Image specifications
Image types: T1 weighted image, T2 weighted image, T2* weighted image, PD weighted image, diffusion weighted image, fat suppressed image, water suppressed image, Magnetic resonance hygrograph (MRCP MRM MRU), MRA
Field of view: 40mm-400mm
نقد و بررسیها
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