公开(公告)号：DE3167621D1

公开(公告)日：1985-01-17

申请号：DE3167621

申请日：1981-08-28

Applicant: IBM

Inventor： KENDRICK RAYMOND DAVID ,  WIND ROBERT ANTHONY ,  YANNONI COSTANTINO SHELDON

IPC: G01N24/08 ,  G01R33/20 ,  G01R33/30 ,  G01N24/04

Abstract: A method for adjusting the orientation of the rotation axis for a sample in a nuclear magnetic resonance (NMR) experiment includes using a field gradient in a specific direction with respect to the external magnetic field of the NMR experiment to establish a calibrated reference direction with which the rotation axis may be aligned. Preferably, the magnetic field gradient is at an angle of 54.7 DEG . A preferred embodiment of this invention includes automatic control steps in the method.

公开(公告)号：DE3062817D1

公开(公告)日：1983-05-26

申请号：DE3062817

申请日：1980-07-01

Applicant: IBM

Inventor： WIND ROBERT ANTHONY ,  YANNONI CONSTANTINO SHELDON

IPC: A61B10/00 ,  A61B5/055 ,  G01R33/30 ,  G01R33/48 ,  G01R33/54 ,  G01N24/08

Abstract: A method for spin imaging in solids using nuclear magnetic resonance (NMR) spectroscopy. The invention includes the steps of rotating the sample about an axis which makes a particular angle with the NMR static external magnetic field, rotating a magnetic field gradient with a spatial distribution which is related to the sample spinning axis synchronously with the sample, collecting the data while performing a solid state NMR line narrowing step, and changing the phase relation between the sample rotation and the field gradient rotation on a step-by-step basis to map out an image of the object.