Apparatus for executing DNP-NMR measurements with compensation assembly and method for aligning the compensation assembly

摘要

The apparatus has a magnet arrangement (M) for producing magnetic field in a working volume (V1). The magnet arrangement produces a control field with magnetic field gradients of high orders in a direction of an axis (Z) in a working volume (V2). A compensation arrangement (m) of magnetic material is positioned in the latter working volume. The magnetic field gradients of high orders range between -90 percentage and -110 percentage of magnetic field gradients of same orders of the control field of the magnet arrangement in the direction of the axis in the latter volume. An independent claim is also included for a method for aligning a compensation arrangement made of magnetic material.