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CERN Document Server 259 のレコードが見つかりました。  1 - 10次最後  レコードへジャンプ： 検索にかかった時間： 2.74 秒 
1.
Numerical study of the plasma meniscus shape and beam optics in RF negative ion sources / Hayashi, K (Keio U.) ; Hoshino, K (Keio U.) ; Miyamoto, K (Naruto U. of Education) ; Hatayama, A (Keio U.) ; Lettry, J (CERN)
In order to extract intense ion beams with good beam optics from hydrogen negative ionsources, it is important to control the shape of the plasma meniscus (i.e. beam emissionsurface). [...]
2024 - 10 p. - Published in : JINST 19 (2024) C04031
In : 8th International symposium on Negative Ions, Beams and Sources (NIBS'22), Padua, Italy, 2 - 7 Oct 2022, pp.C04031
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2.
Correlation of H$^{-}$ beam properties to Cs-coverage / Lettry, J (CERN) ; Vnuchenko, A (CERN) ; Bertolo, S (CERN) ; Mastrostefano, C (CERN) ; O'Neil, M (CERN) ; di Lorenzo, F (CERN) ; Coutron, Y (CERN) ; Steyeart, D (CERN) ; Riffaud, B (CERN) ; Thiboud, J (CERN) et al.
A caesiated RF driven source delivers H$^{-}$ ions that, after stripping at the end of the 160 MeV H$^{-}$ linear injector, provides protons to CERN's accelerator complex including LHC, where the protons reached a record energy of 6.8 TeV. In Caesiated RF sources, H$^{-}$ ions are produced via dissociative attachment of electrons onto roto-vibrationally excited H$_{2}$-molecules (volume) and re-emission as negative ions of protons or hydrogen atoms colliding on a low work function caesiated molybdenum plasma electrode (surface). [...]
2023 - 10 p. - Published in : JINST 18 (2023) C06023
In : 8th International symposium on Negative Ions, Beams and Sources (NIBS'22), Padua, Italy, 2 - 7 Oct 2022, pp.C06023
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3.
H$^-$ Beam formation simulation in negative ion source for CERN's Linac4 accelerator / Vnuchenko, Anna (CERN) ; Lettry, Jacques (CERN) ; Mochalskyy, Serhiy (Garching, Max Planck Inst. Plasmaphys.) ; Wünderlich, Dirk (Garching, Max Planck Inst. Plasmaphys.) ; Fantz, Ursel (LPGP, Orsay) ; Lindqvist, Max (Garching, Max Planck Inst. Plasmaphys.) ; Revel, Adrien (LPGP, Orsay) ; Minea, Tiberiu (LPGP, Orsay)
The caesiated surface negative ion source is the first element of CERN's LINAC4 a linear injector designed to accelerate negative hydrogen ions to 160 MeV. The IS03 ion source is operated at 35 mA beam intensity and reliably feeds CERN's accelerator chain, H- ions are generated via plasma volume and caesiated molybdenum plasma electrode surface mechanisms. [...]
arXiv:2301.13717.- 2023-08-01 - 9 p. - Published in : JINST 18 (2023) C08001 Fulltext: document - PDF; 2301.13717 - PDF;
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4.
Analysis of plasma impedance in the Linac4 negative hydrogen ion source / Kobayashi, W (Keio U.) ; Nishida, K (Keio U.) ; Mattei, S (CERN) ; Lettry, J (CERN) ; Hoshino, K (Keio U.) ; Hatayama, A (Keio U.)
Linac4 is radio frequency (RF) driven type negative hydrogen H− ion source. In the RF system, it is required to match the impedance between the RF-system and plasma loading. [...]
2018 - 7 p. - Published in : AIP Conf. Proc. 2052 (2018) 050009
In : 6th International Symposium on Negative Ions, Beams and Sources, Novosibirsk, Russia, 3 - 7 Sep 2018, pp.050009
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5.
Linac4 H$^-$ source R&D;: Cusp free ICP and magnetron discharge / Lettry, J (CERN) ; Bertolo, S (CERN) ; Fantz, U (Garching, Max Planck Inst.) ; Guida, R (CERN) ; Kapusniak, K (CERN) ; Di Lorenzo, F (CERN) ; Machado, C (CERN) ; Mastrostefano, C (CERN) ; Minea, T (LPGP, Orsay) ; O'Neil, M (CERN) et al.
The 2MHz radio-frequency inductively coupled plasma heating (ICP RF) of Linac4’s IS03 H- source is more efficient without its octupole cusp in offset hallbach configuration. This was shown by Particle in cell Monte-Carlo (PICMC) simulation using the NINJA software [1] and confirmed by plasma characterization via optical emission spectroscopy [2,3], an easier plasma ignition is also anticipated. [...]
2018 - 6 p. - Published in : AIP Conf. Proc. 2052 (2018) 050008
In : 6th International Symposium on Negative Ions, Beams and Sources, Novosibirsk, Russia, 3 - 7 Sep 2018, pp.050008
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6.
Deviation of H$^-$ beam extraction simulation model / Kalvas, T (Jyvaskyla U.) ; Lettry, J (CERN)
Negative hydrogen ion source extraction system development is dependent on accurate and fast simulation methods for modelling the behaviour of ion and electron beams. Traditionally this type of work has been done using ray-tracing extraction codes, such as IBSimu. [...]
2018 - 7 p. - Published in : AIP Conf. Proc. 2052 (2018) 050007
In : 6th International Symposium on Negative Ions, Beams and Sources, Novosibirsk, Russia, 3 - 7 Sep 2018, pp.050007
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7.
The Study of a European Neutrino Factory Complex / Gruber, P ; Aleksa, M ; Aman, JF ; Autin, B ; Baldy, JL ; Benedikt, M ; Benett, R ; Bemardon, A ; Blondel, A ; Bongardt, K et al.
CERN-PS-2002-080-PP.- Geneva : CERN, 2002 - 73 p. Fulltext: PDF;
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8.
Alkali suppression within laser ion-source cavities and time structure of the laser ionized ion-bunches / Lettry, J ; Catherall, R ; Köster, U ; Georg, U ; Jonsson, 0 ; Marzari, S ; Fedosseev, V
CERN-PS-2002-066-PP.- Geneva : CERN, 2002 - 7 p. Fulltext: PDF;
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9.
Radioactive ion beams produced by neutron-induced fission AT ISOLDE / Catherall, R ; Lettry, J ; Gilardoni, S ; Köster, U
CERN-PS-2002-065-PP.- Geneva : CERN, 2002 - 7 p. Fulltext: PDF;
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10.
The high resolution spectrometer at ISOLDE / Catherall, R ; Fedosseev, V ; Georg, U ; Giles, T ; Kugler, E ; Lettry, J ; Lindroos, Μ
CERN-PS-2002-057-OP.- Geneva : CERN, 2002 - 10 p. Fulltext: PDF;
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CERN Document Server : 259 のレコードが見つかりました。   1 - 10次最後  レコードへジャンプ：
似た著者名：
1 Lettry, J.
1 Lettry, JA
175 Lettry, Jacques
1 Lettry, Jacques A.
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