Nevertheless, the raster scanning protocol, where the sample beam continuously moves during a frame acquisition period, is known to be subject to severe degradation in Doppler phase stability unless accompanied by high oversampling [ 22, 23].
b Voltages applied to the X and Y scan coils over the time for a single frame acquisition.
The technique required a tremendous amount of acquired spectra for each frame acquisition, which however was compensated by an ultrahigh speed spectrometer utilizing a high speed Complementary Metal-Oxide SemiCMOSucameraCMOS) camera (i.e. 200 kHz line-rate).
The time frame acquisition was 1.12 s.
The frame acquisition frequency was set to 2 Hz; therefore, it took ~4 min to capture a data set.
In other words, N-STEAM's real-time capture of time-domain pulses enables pulse-to-pulse (frame-by-frame) image acquisition at 36.1 MHz rate.
A high acquisition rate of 10 frames per second is followed by a low acquisition rate of 0.5 frames per second.
Every time 128 frames (acquisition time 45 ) were performed on a 64×64 matrix.
The acquisition of the filled phantom was performed using a dynamic acquisition mode with a frame duration of 30 s for a total acquisition time of 60 min, using a GP collimator.
