Ion-Trapping Effect in UVSOR Storage Ring

概要

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UVSOR is an electron-stage ring dedicated to vacuum ultraviolet synchrotron radiation research. The first beam was stored in the ring in November 1983, and from that time on, efforts have been devoted to improving the performance of the ring. Some inconvenient phenomena have been found during the accelerator studies. One of the most serious problems is the growth of the vertical size of the electron beam. This phenomenon is explained by the ion-trapping effect, in which the ions trapped in the electron beam change the operating point of the storage ring and enhance the coupling between horizontal and vertical oscillations, resulting in a considerable increase in the vertical beam size. This ton trapping was successfully cured by the RF knockout method, which excited the betatron oscillation.
社団法人応用物理学会の論文
1985-09-20