Zobrazeno 1 - 10
of 208
pro vyhledávání: '"Fumihiro Koike"'
Autor:
Chihiro Suzuki, Fumihiro Koike, Izumi Murakami, Daiji Kato, Naoki Tamura, Tetsutarou Oishi, Nobuyuki Nakamura
Publikováno v:
Atoms, Vol 11, Iss 2, p 33 (2023)
This study has systematically investigated the atomic number (Z) dependence of spectra from gallium-like (Ga-like) ions of heavy elements. We have mainly analyzed the experimental spectra recorded in high-temperature plasmas produced in the Large Hel
Externí odkaz:
https://doaj.org/article/3a6de18bbfd244718afd422e27db97fc
Publikováno v:
Atoms, Vol 9, Iss 3, p 46 (2021)
Extreme ultraviolet (EUV) spectra of highly charged praseodymium (Pr) and neodymium (Nd) ions have been investigated in optically thin high-temperature plasmas produced in the Large Helical Device (LHD), a magnetically confined torus device for fusio
Externí odkaz:
https://doaj.org/article/7e918c2744d24685a8f283c4fad14d14
Publikováno v:
Atoms, Vol 7, Iss 3, p 66 (2019)
Soft X-ray spectra from high Z rare-earth (lanthanide) elements have been systematically observed in optically thin, high-temperature plasmas produced in the Large Helical Device (LHD), a facility for magnetically confined fusion research. It has bee
Externí odkaz:
https://doaj.org/article/6c9e3750f7624c758dae6dd2d51e98ba
Publikováno v:
Atoms, Vol 6, Iss 2, p 24 (2018)
We have systematically observed extreme ultraviolet (EUV) spectra from highly charged ions of nine lanthanide elements with atomic numbers from 60–70 in optically thin plasmas produced in the Large Helical Device (LHD). Discrete spectral features w
Externí odkaz:
https://doaj.org/article/feaab2b8c488478f998b214d0f1cd148
Autor:
Yile Liu, Cunqiang Wu, Xiaobin Ding, Fengling Zhang, Ling Zhang, Ke Yao, Yang Yang, Fumihiro Koike, Izumi Murakami, Daiji Kato, Hiroyuki A. Sakaue, Nobuyuki Nakamura, Chenzhong Dong
Publikováno v:
Physics Letters A. 454:128500
Autor:
Naoki Tamura, Chihiro Suzuki, Hiroyuki A. Sakaue, Shigeru Sudo, Izumi Murakami, Gerry O'Sullivan, Fumihiro Koike, Takeshi Higashiguchi
Publikováno v:
Suzuki C, Murakami I, Koike F, et al. Development of an experimental database of EUV spectra from highly charged ions of medium to high Z elements in the Large Helical Device plasmas. X-Ray Spectrometry. 2020;49:78-84. https://doi.org/10.1002/xrs.3058
We are developing an experimental database of extreme ultraviolet spectra from highly charged ions using optically thin high-temperature plasmas produced in the Large Helical Device. Spectra from a variety of elements with atomic numbers ranging from
Autor:
Satoshi Kosugi, F. Hosseini, Maria Novella Piancastelli, Kenji Ito, Fumihiro Koike, John D. Bozek, Tatiana Marchenko, M. Simon, Emma Sokell, Yoshiro Azuma, Oksana Travnikova, J. Martins
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics
Journal of Physics B: Atomic, Molecular and Optical Physics, IOP Publishing, 2020, 53 (12), pp.125001. ⟨10.1088/1361-6455/ab7fc1⟩
Journal of Physics B: Atomic, Molecular and Optical Physics, IOP Publishing, 2020, 53 (12), pp.125001. ⟨10.1088/1361-6455/ab7fc1⟩
We have observed formation of Rydberg series superimposed on the Ar (L3M2,3M2,3) Auger electron spectral profile with photoexcitation just above the 2p-13/2 photoionization threshold. This is due to the recapture of photoelectrons induced by post-col
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5ec514caf30adf527be8a2e82a52937
https://hal.archives-ouvertes.fr/hal-03100348
https://hal.archives-ouvertes.fr/hal-03100348
Autor:
Tatiana Marchenko, Maria Novella Piancastelli, Yoshiro Azuma, T. Nagayasu, Masaki Oura, Marc Simon, J. Martins, Fumihiro Koike, Kenji Ito, Tatsuo Gejo, John D. Bozek, J. R. Harries, Emma Sokell, F. Hosseini, Stephan Fritzsche, Oksana Travnikova, Satoshi Kosugi
Publikováno v:
Physical Review A
Physical Review A, American Physical Society 2020, 101 (4), ⟨10.1103/PhysRevA.101.042505⟩
Physical Review A, American Physical Society 2020, 101 (4), ⟨10.1103/PhysRevA.101.042505⟩
We measured the Kr photoelectron spectrum in the region close to the $3p$ ionization threshold. Our high-resolution measurements allowed a clear observation of spectral structures due to electron correlation effects. Analysis based on relativistic mu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f4f3992edc59bbf50415b04fe1e10fc
https://hal.archives-ouvertes.fr/hal-03100357
https://hal.archives-ouvertes.fr/hal-03100357
Autor:
Nobuyuki Nakamura, Izumi Murakami, Daiji Kato, Hiroyuki A. Sakaue, Yang Yang, Fumihiro Koike, Xiaobin Ding, Ling Zhang, Fengling Zhang, Chenzhong Dong
The wavelength and rate of the $5p\ensuremath{-}5s$ transition of W xiv--W xvi ions have been calculated by the relativistic configuration interaction method with the implementation of the flexible atomic code. A reasonable collisional-radiative mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fbefb4acb8593158596d6ad3e0c790b
Autor:
Xiaobin Ding, Daiji Kato, Chenzhong Dong, Fumihiro Koike, Hiroyuki A. Sakaue, Nobuyuki Nakamura, Izumi Murakami, Jiaoxia Yang
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer. 204:7-11
A detailed level collisional-radiative model of the E1 transition spectrum of Ca-like W$^{54+}$ ion has been constructed. All the necessary atomic data has been calculated by relativistic configuration interaction (RCI) method with the implementation