| 摘要 |
<p>An accelerator comprises a pre-stage accelerator (10), a beam transportation system (11) and an accumulation ring (12). The beam transportation system (11) includes a deflection magnet (20), a 4-pole magnet (21) for converging and diverging a beam, and current monitors (320 to 324) of the beam. The accumulation ring (12) includes an incidence device (23), a deflection magnet (20), a 4-pole magnet (21), an acceleration cavity (22) for accelerating the beam and current monitors (330 to 338). A control unit (400) of the accelerator includes a beam current measuring device (42), a device (43) for measuring a control quantity such as an excitation current of the deflection magnet, a device (44) for setting the control quantity of each constituent element, a trigger generator (41) for generating various trigger signals, and a main controller (40) for determining the control quantities of all the constituent elements and the control timings. Automatic operation is possible irrespective of the skill of an operator for all the operation modes of the accelerator.</p> |
