The generation of an electron plasma via low-power Radio Frequency (RF) excitation has been observed in the Malmberg-Penning trap ELTRAP under ultra-high vacuum conditions. The process is sensitive to the RF parameters as well as to the trapping length. The electron heating mechanism necessary to reach the ionization energy of the residual gas has been modeled with the use of a simple one-dimensional iterative map, whose properties show a behavior similar to that of the Fermi acceleration map.
Radio frequency generation of an electron plasma in a Malmberg-Penning trap / B. Paroli, F. De Luca, G. Maero, R. Pozzoli, M. Romé - In: Plasmas in the laboratory and the Universe : interactions, patterns, and turbulence : Como, Italy, 1-4 December 2009 / [a cura di] G. Bertin, F. De Luca, G. Lodato, R. Pozzoli, M. Romé. - Melville, NY : American institute of physics, 2010. - ISBN 978-0-7354-0787-9. - pp. 343-348 (( convegno Plasmas in the laboratory and the Universe : interactions, patterns, and turbulence : international symposium tenutosi a Como, Italy nel 2009.
Radio frequency generation of an electron plasma in a Malmberg-Penning trap
B. ParoliPrimo
;F. De LucaSecondo
;G. Maero;R. PozzoliPenultimo
;M. RoméUltimo
2010
Abstract
The generation of an electron plasma via low-power Radio Frequency (RF) excitation has been observed in the Malmberg-Penning trap ELTRAP under ultra-high vacuum conditions. The process is sensitive to the RF parameters as well as to the trapping length. The electron heating mechanism necessary to reach the ionization energy of the residual gas has been modeled with the use of a simple one-dimensional iterative map, whose properties show a behavior similar to that of the Fermi acceleration map.
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