Zobrazeno 1 - 10
of 117
pro vyhledávání: '"C.A. Pineda-Vargas"'
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 491:7-16
Throughout this work we present and analyse the inter-comparison result that we carried out between the energy loss straggling of 63Cu, 28Si, 27Al, 24Mg, 19F and16O partially stripped heavy ions crossing thin polymeric foils such as: Mylar, Polypropy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9997f3df22d04cdeb94f98216c8da624
https://doi.org/10.1016/j.nimb.2021.01.012
https://doi.org/10.1016/j.nimb.2021.01.012
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 452:7-11
In this case study, micro-PIXE was used to determine the cause of cavity defects on the surface of cemented carbide mining components by means of elemental mapping. Calcium contamination was identified as the source of the defect. The presence of Ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e11ec856249575be404b44194f8ca6c
https://doi.org/10.1016/j.nimb.2019.05.048
https://doi.org/10.1016/j.nimb.2019.05.048
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 450:43-46
The slowing down of Cu, Si, Al and F heavy ions over the 0.09–0.51 MeV/nucleon energy range in thin Nickel (Ni) foil has been investigated by using the Heavy Ion Elastic Recoil Detection Analysis (HI-ERDA) technique coupled with a time of flight (T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58b39bba66340801b35d49ad5501e325
https://doi.org/10.1016/j.nimb.2018.11.008
https://doi.org/10.1016/j.nimb.2018.11.008
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 440:186-190
Successful co-implementation of different heavy ion beam nuclear analytical techniques such as heavy ion PIXE, ERDA, MeV SIMS and RBS hinges on the availability of accurate databases of fundamental ion beam-matter interaction parameters. We report on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::884ffb1d0fcd1e3870b40625a0d6eb18
https://doi.org/10.1016/j.nimb.2018.08.050
https://doi.org/10.1016/j.nimb.2018.08.050
Publikováno v:
Applied Radiation and Isotopes. 131:58-61
In this study 14 kidney stones (oxalate and phosphate stones) collected from two Sudanese hospitals Particle Induced X ray Emission (µ-PIXE). This technique was used to investigate the matrix as well as the trace element compositions of kidney stone
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65ff562cfb2d545be299606bb2a25a2b
https://doi.org/10.1016/j.apradiso.2017.10.017
https://doi.org/10.1016/j.apradiso.2017.10.017
Publikováno v:
Surface and Interface Analysis. 50:328-334
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c2bd3b8f125b2962f10cc33e81b1891
https://doi.org/10.1002/sia.6372
https://doi.org/10.1002/sia.6372
Autor:
Karen J. Cloete, Roya Janeen Ndimba, Luke Mehlo, Jens Kossmann, C. Mtshali, C.A. Pineda-Vargas
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 404:121-124
In the present study, possible differences in the mineral composition of transgenic versus non-transgenic sorghum grains were investigated using inductively coupled atomic emission spectroscopy (ICP-AES); and, in-tissue elemental mapping by micro Pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1c5266a021d837f3a62df7a827977bd
https://doi.org/10.1016/j.nimb.2017.03.004
https://doi.org/10.1016/j.nimb.2017.03.004
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 380:90-93
An inhibiting factor in the implementation of heavy ion PIXE is that heavy ion X-ray production cross sections are not well known for many materials. This contribution reports on work carried out at iThemba LABS to measure X-ray production cross-sect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f28fa58e394a1961fdc2c97d7922def7
https://doi.org/10.1016/j.nimb.2016.05.012
https://doi.org/10.1016/j.nimb.2016.05.012
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 371:69-75
The stopping force and the energy-loss straggling of 63 Cu, 28 Si, 16 O and 12 C partially stripped heavy ions crossing silicon nitride foil has been determined over a continuous range of energies 2–11 MeV, by using a method based on the Heavy Ion-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35b312f4703904a523b46470e467621e
https://doi.org/10.1016/j.nimb.2015.10.058
https://doi.org/10.1016/j.nimb.2015.10.058
Publikováno v:
Physics Letters A. 384:126794
An analytical approach for the electronic stopping force for non-relativistic energies that has no adjustable parameters has been developed. The approach combines the Bohr model for the close collisions and the Firsov model for the distant collisions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea65f7dc70d556201a20fb52703ade5f
https://doi.org/10.1016/j.physleta.2020.126794
https://doi.org/10.1016/j.physleta.2020.126794