31 citations · 91 across the 7 of their papers we have counts for
8 papers
The longitudinal energy spread of ion beams extracted from an electron cyclotron resonance ion source
Julien Angot, Olli Tarvainen, Pierre Chauveau +5
We present a study of factors affecting the energy spread of ion beams extracted from a Charge Breeder Electron Cyclotron Resonance Ion Source (CB-ECRIS). The comprehensive simulat…
Method for estimating charge breeder ECR ion source plasma parameters with short pulse 1+ injection
J. Angot, M. Luntinen, T. Kalvas +6
A new method for determining plasma parameters from beam current transients resulting from short pulse 1+ injection into a Charge Breeder Electron Cyclotron Resonance Ion Source (C…
Design of a 10 GHz minimum-B quadrupole permanent magnet electron cyclotron resonance ion source
T. Kalvas, O. Tarvainen, V. Toivanen +1
This paper presents a simulation study of a permanent magnet electron cyclotron resonance ion source (ECRIS) with a minimum-B quadrupole magnetic field topology. The magnetic field…
Measurement of the energy distribution of electrons escaping minimum-B ECR plasmas
Ivan Izotov, Olli Tarvainen, Vadim Skalyga +4
The measurement of the electron energy distribution (EED) of electrons escaping axially from a minimum-B electron cyclotron resonance ion source (ECRIS) is reported. The experiment…
VUV irradiance measurement of a 2.45 GHz microwave-driven hydrogen discharge
J. Komppula, O. Tarvainen, T. Kalvas +4
Absolute values of VUV-emission of a 2.45 GHz microwave-driven hydrogen discharge are reported. The measurements were performed with a robust and straightforward method based on a…
Photoelectron Emission from Metal Surfaces Induced by Radiation Emitted by a 14 GHz Electron Cyclotron Resonance Ion Source
Janne Laulainen, Taneli Kalvas, Hannu Koivisto +3
Photoelectron emission measurements have been performed using a room-temperature 14 GHz ECR ion source. It is shown that the photoelectron emission from Al, Cu, and stainless steel…
Photoelectron Emission from Metal Surfaces Induced by VUV-emission of Filament Driven Hydrogen Arc Discharge Plasma
J. Laulainen, T. Kalvas, H. Koivisto +2
Photoelectron emission measurements have been performed using a filament-driven multi-cusp arc discharge volume production H^- ion source (LIISA). It has been found that photoelect…
E-sail test payload of ESTCube-1 nanosatellite
Jouni Envall, Pekka Janhunen, Petri Toivanen +17
The scientific mission of ESTCube-1, launched in May 2013, is to measure the Electric solar wind sail (E-sail) force in orbit. The experiment is planned to push forward the develop…