magneton focal length adjustment method permanent magnet type multi-stage six-pole magneton apparatus and a six-pole

摘要

PROBLEM TO BE SOLVED: To provide a method of varying a focal distance of a multistage sextupole magneton comprising a permanent magnet by an external operation.;SOLUTION: The entire multistage sextupole magneton comprises a plurality of sextupole magnetons each of which comprises a permanent magnet, and a position of a part of the sextupole magnetons can be operated from an outside by means of a moving mechanism. Thus, the constitution of the entire multistage sextupole magneton can be varied, and a focal distance of the multistage sextupole magneton can be adjusted.;COPYRIGHT: (C)2013,JPO&INPIT