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12th International Conference on Ion Sources (ICIS'07), Jeju : Corée, République De (2007)
Study of pulsed ECRIS plasma near breakdown: the Preglow
T. Thuillier1, T. Lamy1, L. Latrasse1, I.V. Izotov, A.V. Sidorov, V.A. Skalyga, V.G. Zorin, M. Marie-Jeanne2
(2008)

A careful study of pulsed mode operation of the PHOENIX ECR ion source has clearly demonstrated the reality of an unexpected transient current peak, occurring at the very beginning of the plasma breakdown. This regime was named the Preglow, as an explicit reference to the Afterglow occurring at the microwave pulse end. After the transient Preglow peak, the plasma regime relaxes to the classical steady state one. Argon Preglow experiments performed at LPSC are presented. A theoretical model of ECR gas breakdown in a magnetic trap, developed at IAP, showing satisfactory agreement with the experimental results is suggested.
1 :  LPSC - Laboratoire de Physique Subatomique et de Cosmologie
2 :  CERN - European Organization for Nuclear Research
LPSC-si
Physique/Physique/Physique des plasmas
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