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1.
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Cavity Tuning Experiments with the JYFL 14 GHz ECRIS
/ Tarvainen, Olli (Jyvaskyla U.) ; Izotov, Ivan (Nizhnii Novgorod, IAP ; Nizhnii Novgorod State U.) ; Kalvas, Taneli (Jyvaskyla U.) ; Koivisto, Hannu (Jyvaskyla U.) ; Kronholm, Risto (Jyvaskyla U.) ; Laulainen, Janne (Jyvaskyla U.) ; Orpana, Joose (Jyvaskyla U.) ; Skalyga, Vadim (Nizhnii Novgorod, IAP ; Nizhnii Novgorod State U.) ; Toivanen, Ville (CERN)
Experimental results showing the effect of cavity tuning on oxygen beam currents extracted from the AECR-type JYFL 14 GHz ECRIS are reported. The microwave-plasma coupling properties of the ion source were adjusted by in- serting a conducting tuner stub through the injection plug, thus changing the dimensions of the plasma chamber and affecting the cavity properties of the system. [...]
2017 - 5 p.
- Published in : 10.18429/JACoW-ECRIS2016-MOCO03
Fulltext: PDF;
In : 22nd International Workshop on ECR Ion Sources, Busan, South Korea, 28 Aug - 1 Sep 2016, pp.MOCO03
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2.
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The effect of cavity tuning on oxygen beam currents of an A-ECR type 14 GHz electron cyclotron resonance ion source
/ Tarvainen, O (Jyvaskyla U.) ; Orpana, J (Jyvaskyla U.) ; Kronholm, R (Jyvaskyla U.) ; Kalvas, T (Jyvaskyla U.) ; Laulainen, J (Jyvaskyla U.) ; Koivisto, H (Jyvaskyla U.) ; Izotov, I (Nizhnii Novgorod State U. ; Nizhnii Novgorod, IAP) ; Skalyga, V (Nizhnii Novgorod, IAP ; Nizhnii Novgorod State U.) ; Toivanen, V (CERN)
The efficiency of the microwave-plasma coupling plays a significant role in the production of highly
charged ion beams with electron cyclotron resonance ion sources (ECRISs). The coupling properties
are affected by the mechanical design of the ion source plasma chamber and microwave launching
system, as well as damping of the microwave electric field by the plasma. [...]
2016 - 9 p.
- Published in : Rev. Sci. Instrum. 87 (2016) 093301
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3.
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Limitation of the ECRIS performance by kinetic plasma instabilitie (invited)
/ Tarvainen, O (Jyvaskyla U.) ; Kalvas, T (Jyvaskyla U.) ; Koivisto, H (Jyvaskyla U.) ; Komppula, J (Jyvaskyla U.) ; Kronholm, R (Jyvaskyla U.) ; Laulainen, J (Jyvaskyla U.) ; Izotov, I (Nizhnii Novgorod, IAP) ; Mansfeld, D (Nizhnii Novgorod, IAP) ; Skalyga, V (Nizhnii Novgorod State U. ; Nizhnii Novgorod, IAP) ; Toivanen, V (CERN) et al.
Electron cyclotron resonance ion source (ECRIS) plasmas are prone to kinetic instabilities due to anisotropic electron velocity distribution. The instabilities are associated with strong microwave emission and periodic bursts of energetic electrons escaping the magnetic confinement. [...]
2016 - 6 p.
- Published in : Rev. Sci. Instrum. 87 (2016) 02A703
In : 16th International Conference on Ion Sources, New York, NY, USA, 23 - 28 Aug 2015, pp.02A703
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4.
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Beam current oscillations driven by cyclotron instabilities in a minimum-Belectron cyclotron resonance ion source plasma
/ Tarvainen, O ; Izotov, I (Nizhnii Novgorod, IAP) ; Mansfeld, D (Nizhnii Novgorod, IAP) ; Skalyga, V (Nizhnii Novgorod, IAP) ; Golubev, S (Nizhnii Novgorod, IAP) ; Kalvas, T ; Koivisto, H (Jyvaskyla U.) ; Komppula, J ; Kronholm, R ; Laulainen, J (Jyvaskyla U.) et al.
2014
- Published in : Plasma Sources Sci. Technol. 23 (2014) 025020
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5.
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Design of a neutrino source based on beta beams
/ Wildner, E (CERN) ; Hansen, C (CERN) ; Benedetto, E (CERN) ; Jensen, E (CERN) ; Stora, T (CERN) ; Mendonca, T Melo (CERN) ; Vlachoudis, V (CERN) ; Bouquerel, E (Strasbourg, IPHC) ; Marie-Jeanne, M (Grenoble, INP ; LPSC, Grenoble) ; Balint, P (Grenoble, INP ; LPSC, Grenoble) et al.
``Beta beams'' produce collimated pure electron (anti)neutrino beams by accelerating beta active ions to high energies and having them decay in a racetrack shaped storage ring of 7 km circumference, the decay ring. EUROnu beta beams are based on CERN infrastructures and existing machines. [...]
2014 - 51 p.
- Published in : Phys. Rev. Spec. Top. Accel. Beams 17 (2014) 071002
APS Open Access article: PDF;
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6.
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High intensity neutrino oscillation facilities in Europe
/ Edgecock, T.R. (Rutherford) ; Caretta, O. (Rutherford) ; Davenne, T. (Rutherford) ; Densham, C. (Rutherford) ; Fitton, M. (Rutherford) ; Kelliher, D. (Rutherford) ; Loveridge, P. (Rutherford) ; Machida, S. (Rutherford) ; Prior, C. (Rutherford) ; Rogers, C. (Rutherford) et al.
The EUROnu project has studied three possible options for future, high intensity neutrino oscillation facilities in Europe. The first is a Super Beam, in which the neutrinos come from the decay of pions created by bombarding targets with a 4 MW proton beam from the CERN High Power Superconducting Proton Linac. [...]
arXiv:1305.4067; FERMILAB-PUB-13-656-APC-PPD.-
2013-02-20 - 18 p.
- Published in : Phys. Rev. Accel. Beams: 19 (2016) , pp. 079901
APS Published version, local copy: PDF; Addendum: PDF; Fulltext: fermilab-pub-13-656-apc-ppd - PDF; PhysRevSTAB.16 - PDF; Preprint: PDF; External links: Fermilab Library Server (fulltext available); Open Access fulltext
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7.
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Beta Beams for Precision Measurements of Neutrino Oscillation Parameters
/ Wildner, E (CERN) ; Benedetto, E (CERN) ; Hansen, C (CERN) ; De Melo Mendonca, T (CERN) ; Stora, T (CERN) ; Damjanovic, S (CERN) ; Payet, J (Saclay) ; Chancé, A (Saclay) ; Zorin, V (Nizhnii Novgorod, IAP) ; Izotov, I (Nizhnii Novgorod, IAP) et al.
Neutrino oscillations have implications for the Standard Model of particle physics. The CERN Beta Beam has outstanding capabilities to contribute to precision measurements of the parameters governing neutrino oscillations [...]
CERN-ATS-2012-145.-
Geneva : CERN, 2012 - 3 p.
- Published in : Conf. Proc.: C1205201 (2012) , pp. THPPP087
Fulltext: PDF; External link: Published version from JaCoW
In : 3rd International Particle Accelerator Conference, New Orleans, LA, USA, 20 - 25 May 2012, pp.3939
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8.
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Beta Beams: an accelerator based facility to explore Neutrino oscillation physics
/ Wildner, E (CERN) ; Benedetto, E (CERN) ; Hansen, C (CERN) ; De Melo Mendonca, T (CERN) ; Stora, T (CERN) ; Payet, J (Saclay) ; Chance, A (Saclay) ; Zorin, V (Nizhnii Novgorod, IAP) ; Izotov, I (Nizhnii Novgorod, IAP) ; Rasin, S (Nizhnii Novgorod, IAP) et al.
The discovery that the neutrino changes flavor as it travels through space has implications for the Standard Model of particle physics (SM)[1]. To know the contribution of neutrinos to the SM, needs precise measurements of the parameters governing the neutrino oscillations. [...]
CERN-ATS-2011-182.-
Geneva : CERN, 2011 - 3 p.
Fulltext: PDF; External link: Published version from JACoW
In : 2nd International Particle Accelerator Conference, San Sebastian, Spain, 4 - 9 Sep 2011, pp.WEPS024
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9.
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Deliverable D9: Bunched efficiency advanced study - 60 GHz Final report on bunched efficiency
/ Lamy, T (LPSC, Grenoble) ; Marie-Jeanne, M (LPSC, Grenoble) ; Thuillier, T (LPSC, Grenoble) ; Latrasse, L (LPSC, Grenoble) ; Fourel, C (LPSC, Grenoble) ; Giraud, J (LPSC, Grenoble) ; Trophime, C (Crystalography Lab., Grenoble) ; Debray, F (Crystalography Lab., Grenoble) ; Sala, P (Crystalography Lab., Grenoble) ; Dumas, J (Crystalography Lab., Grenoble) et al.
Final report on bunched efficiency of proposed high frequency ECR source for production of radioactive isotopes needed for beta beams
EURISOL-09-25-2009-0009.
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