Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Boshra Afra"'
Autor:
Thomas Bierschenk, Aleksi A. Leino, Werner Wesch, Boshra Afra, Matias D. Rodriguez, Flyura Djurabekova, Levi Keller, Olli H. Pakarinen, Kai Nordlund, Mark C. Ridgway, Patrick Kluth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0b4db7e12252b60731188c1d4a90fb5
https://doi.org/10.2139/ssrn.4447118
https://doi.org/10.2139/ssrn.4447118
Autor:
Patrick Kluth, Boshra Afra, Adrian Hawley, Matias Rodriguez, Christina Trautmann, Daniel Schauries
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 365:380-383
We report on the reduction of cross-section and length of amorphous ion tracks embedded within crystalline quartz during thermal annealing. The ion tracks were created via Au ion irradiation with an energy of 2.2 GeV. The use of synchrotron-based sma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22694f08ee9da1e1826a36e10aabf479
https://doi.org/10.1016/j.nimb.2015.07.081
https://doi.org/10.1016/j.nimb.2015.07.081
Autor:
Matias Rodriguez, Christina Trautmann, Thomas Bierschenk, Stephen T. Mudie, Patrick Kluth, Boshra Afra, Daniel Schauries
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 365:573-577
Ion tracks in polyethylene terephthalate (PET) and polytetrafluoroethylene (PTFE) were created by swift heavy ion irradiation and subsequently characterized using small angle X-ray scattering (SAXS). Due to their reduced density compared to the surro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::706c8cb7f21c4b31ad08d8cf870702c1
https://doi.org/10.1016/j.nimb.2015.08.071
https://doi.org/10.1016/j.nimb.2015.08.071
Autor:
Szymon L. Daraszewicz, Aleksi A. Leino, Flyura Djurabekova, Kai Nordlund, Boshra Afra, Patrick Kluth, Olli H. Pakarinen
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 326:289-292
Swift heavy ions (SHI), of specific kinetic energies in the excess of 1 MeV/u, can create cylindrical regions of structural transformation in SiO 2 targets, also known as SHI tracks. Recent measurements of the track cross-sections in α -quartz show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::174589a105d5995465b8ebded1f57fec
https://doi.org/10.1016/j.nimb.2013.10.075
https://doi.org/10.1016/j.nimb.2013.10.075
Autor:
Mark C Ridgway, Patrick Kluth, Matias Rodriguez, Boshra Afra, Christina Trautmann, Raquel Giulian, Stephen T. Mudie, Thomas Bierschenk
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 326:113-116
The formation of ion tracks was studied in amorphous Ge for irradiation with Au ions with energies of 89 MeV, 185 MeV and 2.19 GeV. Synchrotron based small-angle X-ray scattering revealed an underlying core–shell morphology of the ion tracks for al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf428e9346b4dc057ae5a14ba3c1b071
https://doi.org/10.1016/j.nimb.2013.10.048
https://doi.org/10.1016/j.nimb.2013.10.048
Autor:
Feng Chen, Christina Trautmann, Boshra Afra, Patrick Kluth, Thomas Bierschenk, Weixing Li, Stephen T. Mudie, Rodney C. Ewing, Matias Rodriguez, Daniel Schauries
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 326:150-153
Neodymium-doped yttrium aluminium garnet (Nd:Y3Al5O12 or Nd:YAG) crystals were irradiated with 2.2 GeV 197Au ions. Ion track formation was investigated using synchrotron based small angle X-ray scattering (SAXS) and transmission electron microscopy (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::158acc03669e7be322050d07f548eb34
https://doi.org/10.1016/j.nimb.2013.10.076
https://doi.org/10.1016/j.nimb.2013.10.076
Autor:
Weixing Li, Patrick Kluth, Maik Lang, Matias Rodriguez, Boshra Afra, Thomas Bierschenk, Rodney C. Ewing, Daniel Schauries, Christina Trautmann
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 326:117-120
Small angle X-ray scattering measurements were performed on natural apatite of different thickness irradiated with 2.2 GeV Au swift heavy ions. The evolution of the track radius along the full ion track length was estimated by considering the electro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b51d5f105793bda7825fecac1e0d8e9
https://doi.org/10.1016/j.nimb.2013.10.071
https://doi.org/10.1016/j.nimb.2013.10.071
Autor:
Boshra Afra, Maik Lang, Patrick Kluth, Christina Trautmann, Rodney C. Ewing, Matias Rodriguez, William J. Weber, Nigel Kirby, Thomas Bierschenk
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 326:126-130
Ion tracks were created in olivine from San Carlos, Arizona (95% Mg2SiO4), apatite (Ca5(PO4)3(F,Cl,O)) from Durango, Mexico, and synthetic silicates with the apatite structure: Nd8Sr2(SiO4)6O2 and Nd8Ca2(SiO4)6O2 using 1.6 and 2.2 GeV Au ions. The mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aedeb18c150c7e17fc00811e5f377408
https://doi.org/10.1016/j.nimb.2013.10.072
https://doi.org/10.1016/j.nimb.2013.10.072
Autor:
Flyura Djurabekova, Daniel Severin, Kai Nordlund, Markus Bender, Olli H. Pakarinen, Daniel Schauries, Maik Lang, S. Botis, Matias Rodriguez, Nigel Kirby, Christina Trautmann, Boshra Afra, Weixing Li, Patrick Kluth, Rodney C. Ewing
Publikováno v:
Journal of Applied Crystallography. 46:1558-1563
Ion tracks were created in natural quartz and fluorapatite from Durango, Mexico, by irradiation with 2.2 GeV Au ions at elevated temperatures of up to 913 K. The track radii were analysed using small-angle X-ray scattering, revealing an increase in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::176943dda13b7f0bb92b23b2bedcd903
https://doi.org/10.1107/s0021889813022802
https://doi.org/10.1107/s0021889813022802
Autor:
Boshra Afra, Daniel Severin, Jiaming Zhang, Patrick Kluth, Weixing Li, Rodney C. Ewing, Nikita Medvedev, Maik Lang, Matias Rodriguez, Michael Sorokin, Markus Bender, Christina Trautmann
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 302:40-47
Based on the Coulomb spike model, track formation depends strongly on the electrical resistivity of a material, and ion tracks form only in insulating materials. However, there are no systemic studies of the effect of resistivity on the track formati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50ab026b89ad3a86932a89bc40227835
https://doi.org/10.1016/j.nimb.2013.03.010
https://doi.org/10.1016/j.nimb.2013.03.010