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Abstract : The terminal of the Pelletron accelerator in Rehovot was designed so as to transmit freely any beam of a desired charge state through the high energy acceleration tube. Charge selection is accomplished by means of a displaced electrostatic quadrupole triplet. A matching lens further downstream inside the terminal is matching the beam emittance to the high energy tube acceptance. A detailed study of the angular acceptance of the high energy tube was carried out in order to check for possible tube loading. The transmission through the high energy tube is substantially improved by the matching lens both when the charge selector is on and when it is off.

Keywords : beam handling equipment electrostatic accelerators 14 UD Pelletron terminal Pelletron accelerator in Rehovot displaced electrostatic quadrupole triplet matching lens beam emittance high energy tube acceptance angular acceptance tube loading charge selection beam transmission ion optics





Autor: Z. Segalov E. Skurnik

Fuente: https://hal.archives-ouvertes.fr/



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