Zobrazeno 1 - 10 of 25 pro vyhledávání: '"Andrey Lvovskiy"'
1
Novel compact hard x-ray spectrometer with MCps counting rate capabilities for runaway electron measurements on DIII-D
Autor: A. Dal Molin, L. Giacomelli, Carlos Paz-Soldan, M. Nocente, L. Fumagalli, M. Tardocchi, E. Panontin, N. W. Edietis, Giuseppe Gorini, D. Rigamonti, Andrey Lvovskiy
Publikováno v: Review of scientific instruments 92 (2021): 043517-1–043517-5. doi:10.1063/5.0043762
info:cnr-pdr/source/autori:Dal Molin A.; Fumagalli L.; Nocente M.; Rigamonti D.; Tardocchi M.; Giacomelli L.; Panontin E.; Lvovskiy A.; Paz-Soldan C.; Edietis N.W.; Gorini G./titolo:Novel compact hard x-ray spectrometer with MCps counting rate capabilities for runaway electron measurements on DIII-D/doi:10.1063%2F5.0043762/rivista:Review of scientific instruments/anno:2021/pagina_da:043517-1/pagina_a:043517-5/intervallo_pagine:043517-1–043517-5/volume:92
A novel compact spectrometer optimized for the measurement of hard x rays generated by runaway electrons is presented. The detector is designed to be installed in the fan-shaped collimator of the gamma-ray imager diagnostic at the DIII-D tokamak. The
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e96ba4065f06189cf9aa514bf5673d7e
https://hdl.handle.net/10281/413633
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2
Runaway electron seed formation at reactor-relevant temperature
Autor: Andrey Lvovskiy, P. Aleynikov, E. M. Hollmann, Igor Bykov, Xiaodi Du, N.W. Eidietis, Carlos Paz-Soldan, Daisuke Shiraki
Publikováno v: Nuclear Fusion
Systematic variation of the pre-disruption core electron temperature (Te) from 1 to 12 keV using an internal transport barrier scenario reveals a dramatic increase in the production of seed runaway electrons (REs), ultimately accessing near-complete
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d18f995e2a8ba3ed431e547a7a9686c2
https://hdl.handle.net/21.11116/0000-0006-6A24-B21.11116/0000-0006-625B-621.11116/0000-0006-625D-4
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3
Runaway electron beam dynamics at low plasma density in DIII-D: energy distribution, current profile, and internal instability
Autor: Carlos Paz-Soldan, A. Dal Molin, L. Giacomelli, R.A. Moyer, Eric Hollmann, M. Tardocchi, P. Aleynikov, William Heidbrink, Yueqiang Liu, Daisuke Shiraki, N.W. Eidietis, Massimo Nocente, Max E Austin, D. Rigamonti, Andrey Lvovskiy, Donald A. Spong
Publikováno v: Nuclear Fusion
Nuclear fusion 60 (2020): 056008-1–056008-16. doi:10.1088/1741-4326/ab78c7
info:cnr-pdr/source/autori:Lvovskiy, A.; Paz-Soldan, C.; Eidietis, N. W.; Aleynikov, P.; Austin, M. E.; Dal Molin, A.; Liu, Y. Q.; Moyer, R. A.; Nocente, M.; Shiraki, D.; Giacomelli, L.; Heidbrink, W. W.; Hollmann, E. M.; Rigamonti, D.; Spong, D. A.; Tardocchi, M./titolo:Runaway electron beam dynamics at low plasma density in DIII-D: energy distribution, current profile, and internal instability/doi:10.1088%2F1741-4326%2Fab78c7/rivista:Nuclear fusion/anno:2020/pagina_da:056008-1/pagina_a:056008-16/intervallo_pagine:056008-1–056008-16/volume:60
Parameters of the post-disruption runaway electron (RE) beam in the low density background plasma achieved after secondary deuterium injection are investigated in DIII-D. The spatially resolved RE energy distribution function is measured for the firs
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c930d4562dd60344b60e1c493ad3187
https://hdl.handle.net/21.11116/0000-0006-0F9E-921.11116/0000-0006-0D25-321.11116/0000-0006-0D27-1
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4
MeV range particle physics studies in tokamak plasmas using gamma-ray spectroscopy
Autor: Ye. O. Kazakov, A. Dal Molin, A. Mariani, Jet Contributers, M. Nocente, Andrey Lvovskiy, M. Tardocchi, M. Iliasova, N.W. Eidietis, Gergely Papp, Mirko Salewski, Mst Team, E.M. Khilkevitch, G. Pautasso, Giuseppe Gorini, Vasily Kiptily, A. E. Shevelev, M. J. Mantsinen, E. Panontin, D. Rigamonti, L. Giacomelli, Carlos Paz-Soldan
Publikováno v: JET Contributers, MST1 Team, Nocente, M, Molin, A D, Eidietis, N, Giacomelli, L, Gorini, G, Kazakov, Y, Khilkevitch, E, Kiptily, V, Iliasova, M, Lvovskiy, A, Mantsinen, M, Mariani, A, Panontin, E, Papp, G, Pautasso, G, Paz-Soldan, C, Rigamonti, D, Salewski, M, Shevelev, A & Tardocchi, M 2020, ' MeV range particle physics studies in tokamak plasmas using gamma-ray spectroscopy ', Plasma Physics and Controlled Fusion, vol. 62, no. 1, 014015 . https://doi.org/10.1088/1361-6587/ab4f32
Plasma physics and controlled fusion
62 (2020): 014015-1–014015-8. doi:10.1088/1361-6587/ab4f32
info:cnr-pdr/source/autori:Nocente, M.; Dal Molin, A.; Eidietis, N.; Giacomelli, L.; Gorini, G.; Kazakov, Y.; Khilkevitch, E.; Kiptily, V; Iliasova, M.; Lvovskiy, A.; Mantsinen, M.; Mariani, A.; Panontin, E.; Papp, G.; Pautasso, G.; Paz-Soldan, C.; Rigamonti, D.; Salewski, M.; Shevelev, A.; Tardocchi, M./titolo:MeV range particle physics studies in tokamak plasmas using gamma-ray spectroscopy/doi:10.1088%2F1361-6587%2Fab4f32/rivista:Plasma physics and controlled fusion (Print)/anno:2020/pagina_da:014015-1/pagina_a:014015-8/intervallo_pagine:014015-1–014015-8/volume:62
Plasma Physics and Controlled Fusion
Gamma-ray spectroscopy (GRS) has become an established technique to determine properties of the distribution function of the energetic particles in the MeV range, which are fast ions from heating and fusion reactions or runaway electrons born in disr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbce991b9d9cd0e3983b48baf0aa6632
https://orbit.dtu.dk/en/publications/a9308327-ebc2-4233-900a-0c3e3d1dc8f2
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6
Polarized imaging of visible synchrotron emission from runaway electron plateaus in DIII-D
Autor: Diego del-Castillo-Negrete, Andrey Lvovskiy, Carlos Paz-Soldan, Ž. Popović, J. L. Herfindal, Igor Bykov, R.A. Moyer, Eric Hollmann, Daisuke Shiraki, N.W. Eidietis
Publikováno v: Physics of Plasmas. 28:082510
A new approach to estimate the pitch angle of highly energetic postdisruption runaway electrons is presented by imaging the polarized runaway electron synchrotron emission. The vertical to horizontal polarization ratio is found to range between 3 and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fc0c4cbf7a64d8d906102d8629345096
https://doi.org/10.1063/5.0058927
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7
Estimate of pre-thermal quench non-thermal electron density profile during Ar pellet shutdowns of low-density target plasmas in DIII-D
Autor: Ida Svenningsson, Paul Parks, Max E Austin, Daisuke Shiraki, N.W. Eidietis, J. L. Herfindal, Andrey Lvovskiy, Carlos Paz-Soldan, Ola Embréus, Eric Hollmann, Mathias Hoppe, Igor Bykov
Publikováno v: Physics of Plasmas. 28:072501
The radial density profile of pre-thermal quench (pre-TQ) early-time non-thermal (hot) electrons is estimated by combining electron cyclotron emission and soft x-ray data during the rapid shutdown of low-density ( n e ≲ 10 19 m − 3 ) DIII-D targe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::429271d23d9d19f298e1ed39264b60bc
https://doi.org/10.1063/5.0050903
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8
Compressional Alfvén eigenmodes excited by runaway electrons
Autor: Amitava Bhattacharjee, Chang Liu, Carlos Paz-Soldan, Dylan Brennan, Eric Fredrickson, Andrey Lvovskiy
Publikováno v: Nuclear Fusion. 61:036011
Compressional Alfvén eigenmodes (CAEs) driven by energetic ions have been observed in magnetic fusion experiments. In this paper, we show that the modes can also be driven by runaway electrons formed in post-disruption plasma, which may explain kine
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::78b2fd4d9f439f147943ee777e9e6679
https://doi.org/10.1088/1741-4326/abcfcf
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9
Observation of non-thermal electron formation during the thermal quench of shattered pellet injection shutdowns in DIII-D
Autor: Adam McLean, J. L. Herfindal, Paul Parks, Larry R. Baylor, Andrey Lvovskiy, Eric Hollmann, Daisuke Shiraki, T. O'Gorman, N.W. Eidietis, Ž. Popović, I. Golovkin, R.A. Moyer, Igor Bykov
Publikováno v: Nuclear Fusion. 61:016023
Formation of non-thermal (hot) electrons is studied during the thermal quench of shattered pellet injection (SPI) discharge shutdowns in the DIII-D tokamak. Both pure neon and mixed neon/deuterium shutdowns are studied. High-energy radiation (SXR and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7f8ff1bd24332dea4ee27e28f7240fca
https://doi.org/10.1088/1741-4326/abc409
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10
Study of argon expulsion from the post-disruption runaway electron plateau following low-Z massive gas injection in DIII-D
Autor: R. A. Moyer, J.G. Watkins, Andrey Lvovskiy, Igor Bykov, Carlos Paz-Soldan, D.L. Rudakov, Eric Hollmann, J. L. Herfindal, N.W. Eidietis, Paul Parks, A. Yu. Pigarov, Daisuke Shiraki
Publikováno v: Physics of Plasmas. 27:042515
A 1D radial diffusion model is developed to study the observed rapid expulsion of argon from the runaway electron plateau in the DIII-D tokamak following secondary massive low-Z ( D 2 or He) ga...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d6590a0ba69194392b0971c96c3c69d1
https://doi.org/10.1063/5.0003299
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