Zobrazeno 1 - 10
of 176
pro vyhledávání: '"Koivisto, Hannu"'
Autor:
Angot, Julien, Tarvainen, Olli, Koivisto, Hannu, Luntinen, Miha, Thuillier, Thomas, Toivanen, Ville
The consecutive transients (CT) method is a diagnostics approach combining experimental and computational techniques to probe the plasma parameters of Charge Breeder Electron Cyclotron Resonance Ion Sources (CB-ECRIS). The method is based on short pu
Externí odkaz:
http://arxiv.org/abs/2310.11185
Publikováno v:
In Nuclear Inst. and Methods in Physics Research, B January 2024 546
Autor:
Izotov, Ivan, Tarvainen, Olli, Skalyga, Vadim, Mansfeld, Dmitry, Koivisto, Hannu, Kronholm, Risto, Toivanen, Ville, Mironov, Vladimir
Further progress in the development of ECR ion sources (ECRIS) requires deeper understanding of the underlying physics. One of the topics that remains obscure, though being crucial for the performance of the ECRIS, is the electron energy distribution
Externí odkaz:
http://arxiv.org/abs/1912.04562
Autor:
Tarvainen, Olli, Kalvas, Taneli, Toivanen, Ville, Kosonen, Sami, Koivisto, Hannu, Hill, Clive, Bainbridge, Alex, Hinton, Alex, Shepherd, Ben, Faircloth, Dan
Publikováno v:
In Nuclear Inst. and Methods in Physics Research, B May 2023 538:110-114
Autor:
Izotov, Ivan, Tarvainen, Olli, Skalyga, Vadim, Mansfeld, Dmitry, Kalvas, Taneli, Koivisto, Hannu, Kronholm, Risto
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 experimental data were recorded with a room-temperature 14 GHz ECRIS at the JYFL
Externí odkaz:
http://arxiv.org/abs/1711.05562
Autor:
Laulainen, Janne, Kalvas, Taneli, Koivisto, Hannu, Komppula, Jani, Kronholm, Risto, Tarvainen, Olli
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 (SAE 304) surfaces, which are common plasma chamber materials, is pre
Externí odkaz:
http://arxiv.org/abs/1509.00259
Autor:
Oliveira, Luís Miguel Cunha, Koivisto, Hannu, Iwakiri, Igor G.I., Loureiro, José M., Ribeiro, Ana M., Nogueira, Idelfonso B.R.
Publikováno v:
In Chemical Engineering Science 12 October 2020 224
Akademický článek
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Autor:
Envall, Jouni, Janhunen, Pekka, Toivanen, Petri, Pajusalu, Mihkel, Ilbis, Erik, Kalde, Jaanus, Averin, Matis, Kuuste, Henri, Laizans, Kaspars, Allik, Viljo, Rauhala, Timo, Seppänen, Henri, Kiprich, Sergiy, Ukkonen, Jukka, Haeggström, Edward, Kalvas, Taneli, Tarvainen, Olli, Kauppinen, Janne, Nuottajärvi, Antti, Koivisto, Hannu
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 development of E-sail, a propulsion method recently invented at the Finnish M
Externí odkaz:
http://arxiv.org/abs/1404.6961
Autor:
Nogueira, Idelfonso B.R., Martins, Márcio A.F., Requião, Reiner, Oliveira, Amanda R., Viena, Vinícius, Koivisto, Hannu, Rodrigues, Alírio E., Loureiro, José M., Ribeiro, Ana M.
Publikováno v:
In Computers & Industrial Engineering September 2019 135:368-381