Possibility to increase RF ion source brightness for nuclear microprobe applications

Autor: S. Mordik, V.E. Storizhko, V. I. Voznyy, V. V. Olshansky, K. N. Stepanov, V.I. Miroshnichenko, B. Sulkio-Cleff
Rok vydání: 2003
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 201:630-636
ISSN: 0168-583X
DOI: 10.1016/s0168-583x(02)02227-9
Popis: The paper discusses possible ways of improving brightness of RF ion sources intended for use as nuclear microprobe injectors, by increasing the plasma density. The plasma density increase is achieved by setting up an efficient inductively coupled plasma radio frequency (RF) discharge with an external magnetic field. It is shown that in RF ion sources it is possible to create suitable conditions for excitation of the helicon mode as well as the ion-sound parametric instability leading to electron heating, helicon damping and maintenance of the RF discharge while the RF power input into the plasma need not exceed 500 W.
Databáze: OpenAIRE