METHOD OF TUNING AND TEMPERATURE STABILIZATION OF MAGNETIC PERIODIC FOCUSING SYSTEMS WITH PERMANENT MAGNETS BASED ON RARE-EARTH METALS

摘要

The invention relates to methods for tuning and stabilization of magnetic periodical focusing systems operating at elevated temperatures and are used in instrument. The aim of the invention is to increase the stability of the system, reducing its setting time and expense of the magnets. The required level of magnetic properties is achieved as a result of two-stage magnetic treatment comprising degaussing negative magnetic field to the value of magnetic induction at a desired value, and is magnetized by the magnetic field Chivanov positive value of 400-720 kA / m. Table 3. ate with