| 摘要 |
PURPOSE:To reduce the beam loss when the electron beam is injected, to reduce the incident time for injecting necessary amount of the electron beam to an accumulation ring, and to simplify the radiant ray shielding of the electron accumulation ring, by providing an accelerating frequency regulating means. CONSTITUTION:After accelerating the electron beam injected to a synchrotron accelerator 1 for incidence, it is injected to an electron accumulation ring 3 selected timely. In this case, the accelerating frequency of the accelerator 1 is regulated by an accelerating frequency regulating device 16 to fit to an optimum accelerating frequency of the selected ring 3. When the size of the electron beam is made sufficiently small after the electron beam is accelerated by the accelerator 1 in such a way, the accelerating frequency of the accelerator 1 is converted to an optimum accelerating frequency of a corresponding ring 3 the accelerated electron beam is transferred. As a result, since the incident efficiency of the electron beam to the ring 3 is improved, the necessary electron beam can be injected and poured in a short time. Consequently, the incident time can be reduced, and the loss of the electron beam can be reduced, and at the same time, the radiant ray shielding can be simplified. |
