Výsledky vyhledávání

Nonthermal effects on hydrogen Stark profiles

Autor: R Stamm, I Hannachi, M Meireni, J Rosato, Y Marandet

Publikováno v: Journal of Physics: Conference Series. 2439:012011

Plasma waves in nonthermal conditions can be strongly amplified by instabilities. We consider plasma conditions where a velocity-space instability amplifies the oscillating electric field magnitude of electron plasma waves up to several times the ave

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0d94d48a55917867c4e3d74ea4b2d888
https://doi.org/10.1088/1742-6596/2439/1/012011

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A revisit to the electronic and elastic properties of B4C: A DFT study

Autor: M.R. Ramadhan, F. Astuti, J. Anavisha, I.M. Al-Hafiiz, W.R. Tiana, A.T. Oktaviana, M. Meireni, D. Parwatiningtyas

Publikováno v: Computational Condensed Matter. 32:e00709

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::09746fa53e68ce44321e05578abd40eb
https://doi.org/10.1016/j.cocom.2022.e00709

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Simulation of photomultiplier tube malfunction and its effect on SPECT imaging system

Autor: A T Oktaviana, M Meireni, K Fahmi

Publikováno v: Journal of Physics: Conference Series. 2165:012024

Ring artifact appears on the image from SPECT (Single Photon Emission Computed Tomography) imaging system is related to the uniformity. Generally, ring artifacts arose due to the poor performance of the photomultiplier tubes (PMT) in the gamma camera

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e22b1bf2cd342423c345c082542cef72
https://doi.org/10.1088/1742-6596/2165/1/012024

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Akademický článek

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A new analysis of spectral line shapes in white dwarf atmospheres

Autor: Zoran Simić, Jelena Kovačević-Dojčinović, M. Koubiti, M. Meireni, Luka Č. Popović, Roland Stamm, Milan S. Dimitrijević, N. Kieu, Joël Rosato, Yannick Marandet

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Journal of Physics: Conference Series
Journal of Physics: Conference Series, 2019, 1289 (1), pp.012006. ⟨10.1088/1742-6596/1289/1/012006⟩

We present an analysis of hydrogen Balmer line shapes observed in two white dwarf spectra. One spectrum presents singlet lines while the second one presents lines with a triplet structure. The latter is a feature of the presence of a strong magnetic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b276dda6ee1556fa11084e8d328b56bc
http://hdl.handle.net/10261/206175

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Possible spectroscopic signature of wave collapse in edge plasmas

Autor: Roland Stamm, Joël Rosato, I. Hannachi, M. Meireni, Yannick Marandet

Publikováno v: Contributions to Plasma Physics
Contributions to Plasma Physics, Wiley-VCH Verlag, In press, 58 (6-8), ⟨10.1002/ctpp.201700164⟩
Contributions to Plasma Physics, Wiley-VCH Verlag, 2018, 58 (6-8), pp.583-588. ⟨10.1002/ctpp.201700164⟩
Contributions to Plasma Physics, In press, 58 (6-8), ⟨10.1002/ctpp.201700164⟩

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87e092488b5b79c42a775fd9f36201e4
https://hal.archives-ouvertes.fr/hal-01791703

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Stark Broadening from Impact Theory to Simulations

Autor: M. Meireni, Joël Rosato, Roland Stamm, Zoran Simić, I. Hannachi, M. Koubiti, Yannick Marandet, L. Godbert-Mouret, Milan S. Dimitrijević

Publikováno v: Atoms
Atoms, 2017, 5 (4), pp.32. ⟨10.3390/atoms5030032⟩
Atoms, 2017, 5 (3), ⟨10.3390/atoms5030032⟩
Atoms, MDPI, 2017, 5 (3), ⟨10.3390/atoms5030032⟩
Atoms, Vol 5, Iss 3, p 32 (2017)
Atoms; Volume 5; Issue 3; Pages: 32

International audience; Impact approximation is widely used for calculating Stark broadening in a plasma. We review its main features and different types of models that make use of it. We discuss recent developments, in particular a quantum approach

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::717b5e75fe6b3ba4f5be37a6e65b0560

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A Study of Stark Broadening for the Diagnostic of Runaway Electrons in ITER

Autor: I. Hannachi, Roger Reichle, Joël Rosato, Roland Stamm, Ch. Logeais, Yannick Marandet, Robin Barnsley, M. Meireni, Santosh P. Pandya

Publikováno v: ATOMIC PROCESSES IN PLASMAS (APIP 2016)
ATOMIC PROCESSES IN PLASMAS (APIP 2016), 2017, Unknown, Unknown Region. ⟨10.1063/1.4975733⟩
ATOMIC PROCESSES IN PLASMAS APIP 2016: Proceedings of the 18th and 19th International Conference on Atomic Processes in Plasmas
ATOMIC PROCESSES IN PLASMAS APIP 2016: Proceedings of the 18th and 19th International Conference on Atomic Processes in Plasmas, Apr 2016, Paris, France. pp.110001, ⟨10.1063/1.4975733⟩

19th International Conference on Atomic Processes in Plasmas (APiP), Campus Les Cordeliers, Paris, FRANCE, APR 04-08, 2016; International audience; We investigate the Stark broadening of hydrogen lines in tokamak edge plasma conditions in the presenc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af24e93f034b125d4b618a8f7cb56a17
https://hal.archives-ouvertes.fr/hal-01795758

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Effect of Wave Collapse on Lyman and Balmer lines

Autor: M. Meireni, Joël Rosato, I. Hannachi, Roland Stamm, Yannick Marandet

Publikováno v: Journal of Physics: Conference Series
Journal of Physics: Conference Series, 2019, 1289 (1), pp.012034. ⟨10.1088/1742-6596/1289/1/012034⟩

The nonlinear coupling of Langmuir, ion sound and electromagnetic waves can create wave collapse conditions in a plasma, and modify the line shapes emitted by hydrogen atoms. Such conditions may appear in the presence of a strong source of energy, an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::748a4844974283938b5dd486c5e83ccf
https://doi.org/10.1088/1742-6596/1289/1/012034

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