Zobrazeno 1 - 10
of 66
pro vyhledávání: '"J.C. Acquadro"'
Autor:
N. K. Umisedo, Emico Okuno, E.M. Szanto, J. Takahashi, J.C. de Souza, F.J. de Oliveira Filho, J.A.C. Vasconcelos, N. Carlin, J.C. Acquadro
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 540:215-221
In this work, we describe the new facility for Radiobiology and Molecular Biophysics studies with charged particle beams, built at the University of Sao Paulo Pelletron Accelerator Laboratory. It consists of a dedicated beam line, sample holder and d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1a9ceb12786851d291dda577250dc37
https://doi.org/10.1016/j.nima.2004.10.041
https://doi.org/10.1016/j.nima.2004.10.041
Autor:
Manfredo Harri Tabacniks, Roberto Adrian Markarian, J.C. Acquadro, R. Liguori Neto, Nemitala Added, T.R.C.F. Oliveira, Marcia de Almeida Rizzutto, Matsuyoshi Mori, M.M. Vilela
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 190:186-189
An external PIGE–PIXE setup was installed on a beam line of the 8 MV tandem Pelletron accelerator of the Open Nuclear Physics Laboratory (LAFN). Proton beam energy was chosen in the 8–12 MeV range, sufficient to get an acceptable gamma ray yield
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b413d7a3bb54e6d67e5c06c3c7f7e773
https://doi.org/10.1016/s0168-583x(01)01216-2
https://doi.org/10.1016/s0168-583x(01)01216-2
Autor:
Fabio Zappa, N. V. de Castro Faria, S. D. Magalhães, E. Bessa Filho, H. Luna, L. F. S. Coelho, Ginette Jalbert, J.C Acquadro
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 171:373-378
A simple method is proposed for measuring cross-sections of fast negative atomic and molecular ions colliding with atoms and molecules. The method, applicable to tandem accelerators, uses the stripping process of the negative ions, occurring at the g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47201de57cabe0c82292e3a56178fc3d
https://doi.org/10.1016/s0168-583x(00)00264-0
https://doi.org/10.1016/s0168-583x(00)00264-0
Autor:
S. D. Magalhães, Roberto Meigikos dos Anjos, M M Coimbra, P. R. S. Gomes, Kita Macario, R. Liguori Neto, Carlos Roberto Appoloni, J.C Acquadro, Nemitala Added, Raul Donangelo, N. V. de Castro Faria, Guaciara M. Santos
Publikováno v:
Scopus-Elsevier
The status and the near future plans for the Brazilian AMS program are described. The 8 MV Tandem accelerator at the University of Sao Paulo (USP) is ready to measure standard AMS samples. A recently installed 1.7 MV Tandem at the University of Rio d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5e40afb0e9caecd0c27da0c062b68f0
https://doi.org/10.1016/s0168-583x(00)00145-2
https://doi.org/10.1016/s0168-583x(00)00145-2
Publikováno v:
Scopus-Elsevier
The angular dependence of the electronic energy loss of fast ions was calculated. Models for the transitions from axial to planar channeling and from planar channeling to a random direction are discussed in terms of a simple generalization of the Lin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93d9486f9337ed92141a3989c538273b
https://doi.org/10.1016/s0168-583x(98)00935-5
https://doi.org/10.1016/s0168-583x(98)00935-5
Autor:
F Malandrino, Claudio Tenreiro, N. Carlin, S B Moraes, M Frizzarini, A. M. M. Maciel, C. Muri, P. R. S. Gomes, J.C. Acquadro, A. Zerwekh, R. Liguori Neto, R. Cabezas, Guaciara M. Santos, J. Lubian, G. Ramirez, Roberto Meigikos dos Anjos, Nemitala Added
Publikováno v:
Physical Review C. 58:3445-3450
Elastic scattering angular distributions for the symmetric ${}^{27}\mathrm{Al}{+}^{27}\mathrm{Al}$ system were measured at bombarding energies from 50 to 70 MeV. The integrated inelastic cross section for the first two excited states was determined b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a32c7c240c789acc864af7b7d5216e41
https://doi.org/10.1103/physrevc.58.3445
https://doi.org/10.1103/physrevc.58.3445
Autor:
C. Muri, S B Moraes, Claudio Tenreiro, A. M. M. Maciel, R. Cabezas, Roberto Meigikos dos Anjos, R. Liguori Neto, M M Sant'Anna, J. Lubian, P.A.B. Freitas, Guaciara M. Santos, J.C. Acquadro, P. R. S. Gomes
Publikováno v:
The European Physical Journal A. 1:143-149
Elastic and inelastic scattering differential cross sections were measured in the energy range 30 MeV ≤ E lab ≤ 55 MeV, for the 14N +59Co system. Ambiguities of the optical potential derived from the analysis of the elastic scattering data were r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7f3059e4626a197ae51619844992412
https://doi.org/10.1007/s100500050044
https://doi.org/10.1007/s100500050044
Autor:
N. V. de Castro Faria, O.D. Gonçalves, Raul Donangelo, J.C. Acquadro, Neide Gonçalves, Ginette Jalbert, L. F. S. Coelho, H. Luna
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 398:162-166
We developed a method to determine the pressure distribution in the electrode region of electrostatic accelerators. Direct measurement of this distribution is not possible: the electrodes are maintained inside a high pressure vessel and the presence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ef0b465080017f2aa42018422a5f284
https://doi.org/10.1016/s0168-9002(97)00827-9
https://doi.org/10.1016/s0168-9002(97)00827-9
Autor:
J.C. Acquadro, M M Coimbra, P. R. S. Gomes, Guaciara M. Santos, Roberto Meigikos dos Anjos, Claudio Tenreiro, M. A. Rizzuto, A. M. M. Maciel, Nilberto H. Medina, N. Carlin Filho, Carlos Roberto Appoloni, R. Liguori Neto
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 123:34-38
The present status of the Brazilian AMS program, based on the University of Sao Paulo 8UD tandem accelerator, is described. Results of tests and developments on voltage stability, focusing, automatic system for changing beams and detection system are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e183dd865d514973c31d78c9359dfbe5
https://doi.org/10.1016/s0168-583x(96)00425-9
https://doi.org/10.1016/s0168-583x(96)00425-9
Autor:
P.A.B. Freitas, R. Liguori Neto, Claudio Tenreiro, P. R. S. Gomes, Roberto Meigikos dos Anjos, N. Cuevas, G. Ramirez, J.C. Acquadro, R. Cabezas, J. Copnell
Publikováno v:
Physical Review C. 53:2870-2878
Elastic and inelastic scattering angular distributions were measured for the $^{16}\mathrm{O}$${+}^{64}$Zn reaction at bombarding energies close to the Coulomb barrier. The experimental data were analyzed within the optical model and coupled-channel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13215975dbb1558e56081c3ec1f954a2
https://doi.org/10.1103/physrevc.53.2870
https://doi.org/10.1103/physrevc.53.2870