21-23 March 2016
Europe/Paris timezone
EMILIE WORKSHOP

Research of CB ECRIS plasma with the aid of injected 1+ beam

22 Mar 2016, 09:00
30m

Speaker

Dr Hannu Koivisto (Department of Physics, University of Jyväskylä)

Description

An anomalous global efficiency of the extracted 1+ beam was discovered at the LPSC charge breeder. It was realized that a fraction of injected 1+ beam propagates through the charge breeder plasma without being captured and ionized. As a result of the further experiments and theoretical considerations it was realized and confirmed that 1+ beam injected into the charge breeder plasma can be used as a plasma diagnostics tool. Identification of the uncaptured fraction of the 1+ ions allow, for example, estimating the ion-ion collision mean free path of injected 1+ beam and plasma densities as a function of microwave power. The presentation will describe in more detail the injected 1+ beam as a diagnostic tool to reveal information about different plasma parameters. Further more, the prospects to use charge breeder ECRIS to study the effect of gas mixing on the ion confinement time will be discussed.

Primary author

Dr Hannu Koivisto (Department of Physics, University of Jyväskylä)

Co-authors

Dr Alessio Galata (INFN-LNL) Dr Gabriele Patti (INFN-LNL) Mr JULIEN ANGOT (LPSC / CNRS) Dr Jaroslaw Choinski (Heavy Ion Laboratory, University of Warsaw) Dr Laurent Maunoury (CNRS GANIL) Mr Lukasz Standylo (HIL, Warsaw University) Dr Olli Tarvainen (Department of Physics, University of Jyväskylä) Dr Pierre DELAHAYE (GANIL) Mr Thierry Lamy (LPSC-CNRS) Dr Thomas Thuillier (LPSC-CNRS)

Presentation Materials