Abstract: A method of 2-dimensional nuclear magnetic resonance (2D-NMR) correlation spectroscopy, comprises a pulse sequence with the following steps: excitation of double quantum coherence; immediate reconversion to single transition single quantum coherence; evolution of the set of single transitions; mixing with zero quantum mixing Hamiltonian; and signal detection. The method can achieve an improved sensitivity, has a transition selectivity and suppresses diagonal peaks.

Abstract: A method of 2-dimensional nuclear magnetic resonance (2D-NMR) correlation spectroscopy, comprises a pulse sequence with the following steps: excitation of double quantum coherence; immediate reconversion to single transition single quantum coherence; evolution of the set of single transitions; mixing with zero quantum mixing Hamiltonian; and signal detection. The method can achieve an improved sensitivity, has a transition selectivity and suppresses diagonal peaks.

Abstract: A device is described which permits the acquisition of Electron Paramagnetic Resonance Images without employing additional hardware for generation of magnetic field gradients. It employs the inherent gradient in the modulation field, operating with high amplitude modulator.

Abstract: A device is described which permits the acquisition of Electron Paramagnetic Resonance Images without employing additional hardware for generation of magnetic field gradients. It incorporates a module for translation of the bridge-circulator-resonator-detector assembly in order to locate the resonator at an optimal off-center position in the magnet and employs the inherent gradient in the magnetic field, permitting operation with gradients of 5 T m−1 or higher, in continuous wave or pulsed mode.

Abstract: A device to detect magnetic resonance in the time domain that includes a radiofrequency (RF) source (46), having an output connected to a transmitter (47), wherein the output of the transmitter (47) is fed to a probe-preamplifier (48). The signal output of the probe-preamplifier (48) is connected to the input of a filter (49), being connected to the input of a phase sensitive detector (50). Another input of the phase sensitive detector (50) is connected to a second output of the RF source (46), with the output of the phase sensitive detector (50) being connected to the input of a digitizer (51). the putput of the digitizer (51) is connected to a computer (52).

Abstract: A device for excitation and detection of magnetic resonance is presented. The device is fashioned on the principle that electromagnetic radiation is effectively described by fewer independent parameters on considering its interaction with `spins` in a magnetic field, than would be the case in vacuum. In particular, the amplitude and phase of electromagnetic radiation are not independent of each other under such conditions. Complex pulse envelope shapes for excitation may be generated with this device either by pure amplitude modulation, or by pure phase modulation alone instead of by both amplitude and phase modulation). In the latter option, stable, efficient, low-droop Class `C` amplifiers and standard rectangular pulse envelopes may be employed, instead of linear Class `A` or `AB` amplifiers and complex em pulse envelope shapes. In detection mode, signal may be picked up from either one or both of the coils.