[Technical characteristics and diagnostic capabilities of low-field magnetic resonance tomographs TMR-0,06-KFTI].

The construction, performance, technical characteristics, and prospects for upgrading the low-field magnetic resonance tomograph TMR-0,06-KFTI with magnetic field induction 0.06 T developed at the Kazan Institute of Engineering Physics are described. The engineering solutions and software of the tomograph are original developments of the project team.

NQR transient nutation and rotary echoes in the effective field of multiple-pulse sequences.

We present the results of the experimental investigations of the transient processes preceding the establishment of quasistationary states in multiple-pulse nuclear quadrupole resonance. It is shown that the inversion of the phase of radio frequency pulses in the pulse sequence or an extra pulse produces the echo signal in the effective field of the multiple-pulse sequence (the echo on the envelope of echo signals). The train of the echo signals in the effective field is also obtained.