| 摘要 |
<p>The invention relates to a radio-frequency particle accelerator using VHF, UHF, etc. An inner conductor (32) is separated from an exit end by a gap and disposed along and around the axis of particle beams starting from a particle beam entrance end of a radio-frequency accelerating cavity (2). Said entrance end of said inner conductor (32) is joined to one base plate (3a) of an outer conductor (3) of said radio-frequency accelerating cavity (2) to form a resonance cavity (9) together with a capacitance across said gap. Further, a bunching gap (11; 24) is provided. A section of the inner conductor (32) has a shape and size which are independent of those of a section of the second inner conductor (5); slots are disposed on said inner conductor (32); and a cylindrical inner conductor (33) is disposed around said axis within said inner conductor (32). Said bunching gap (35) is formed between an entrance end of said cylindrical inner conductor (33) and said base plate (3a) of the outer conductor (3) of said accelerating cavity (2), so that a part of said radio-frequency electric power is automatically supplied to said bunching gap (35) through inductance by means of said slots on said first inner conductor (32).</p> |
