Linear particle accelerator with coast through shield |
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| 申请号 | US3761828D | 申请日 | 1970-12-10 | 公开(公告)号 | US3761828A | 公开(公告)日 | 1973-09-25 |
| 申请人 | POLLARD J; POLLARD J; | 发明人 | POLLARD J; POLLARD J; | ||||
| 摘要 | Charged particles injected into an energy beam, are accelerated by electric fields established in gaps between tubular electrodes through which the particles pass. Alternate gaps between the electrodes are enclosed by tubular shields through which the particles coast between the accelerating fields. The electrodes are charged by d.c. sources of opposite polarity. | ||||||
| 权利要求 | 1. Apparatus for accelerating charged particles along a predetermined path comprising a plurality of electrodes spaced from each other by gaps along said path, voltage supply means connected to said electrodes for establishing energy fields unidirectionally accelerating said particles within alternate ones of said gaps, coast means positioned within the other of said gaps through which said particles pass between said accelerating fields, and means for isolating the coast means from the electrodes and the voltage supply means. 2. The combination of claim 1 wherein each of said electrodes is elongated in a direction along said path. 3. The combination of claim 1 wherein said coast means comprises tubular shields aligned with said electrodes along said path. 4. The combination of claim 3 wherein each of said electrodes is elongated in a direction along said path and has opposite ends, an associated one of said energy fields extending from one of said opposite ends and one of the tubular shields extending from the other of said ends. 5. The combination of claim 3 wherein said tubular shields project into the electrodes and are radially spaced therefrom by the isolating means. 6. The combination of claim 5 wherein the voltage supply means includes separate sources of constant d.c. voltage of opposite polarity respectively connected to alternate ones of the electrodes. 7. The combination of claim 1 wherein the voltage supply means includes separate sources of constant d.c. voltage of opposite polarity respectively connected to alternate ones of the electrodes. 8. The combination of claim 7 wherein said coast means comprises tubular shields aligned with said electrodes along said path. |
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