par Hansart, A.;Landercy, Michèle;Noblet, Armand 
;Sylin, Georges
Référence Nuclear Instruments and Methods, 50, 2, page (245-250)
Publication Publié, 1967-05
;Sylin, Georges Référence Nuclear Instruments and Methods, 50, 2, page (245-250)
Publication Publié, 1967-05
Article révisé par les pairs
| Résumé : | In order to increase the current extracted from a high frequency ion source, an experimental set-up has been constructed, and the first part of this work deals with the measurement of the source characteristics. The transmission of the frequency energy to the source has been improved by the use of transmission lines, in order to match the impedances between the hf generator and the ion source. In that way, we have been able to extract the maximum possible current, and to step the target current up from 0.6 mA to 5mA. In the second part, we have studied and realised a completely transistorised source pulsation unit; it permits us to realise a power gain, and it has been conceived so as to make the driving of the source pulsation much easier. The target current pulses may vary from 10 ms to 5 μs width, with rise time of about 1 μs, while completely conserving the maximum amplitude obtained in the continuous mode. © 1967. |
