Search Results - "Iza, P."

Stability of finite subspaces in density functional theory: Application to simple atoms by Torres, F. J., Ludeña, E. V., Carrillo, Y., Rincón, L., Iza, P., Zambrano, D.

“…We examine the validity of the first Hohenberg‐Kohn theorem, namely, the one‐to‐one relationship between an external potential and the 1‐particle density, when…”
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Experimental and theoretical investigations on photoabsorption and photoionization of trimethylphosphate in the vacuum-ultraviolet energy range by Homem, M G P, López-Castillo, A, Barbatti, M, Rosa, L F S, Iza, P, Cavasso-Filho, R L, Farenzena, L S, Lee, M T, Iga, I

“…In this work, we report a joint experimental-theoretical investigation on interaction of vacuum-ultraviolet radiation with trimethylphosphate (TMP) molecule…”
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Astrophysical Icy Surface Simulation under Energetic Particles and Radiation Field in Formic Acid by Andrade, D. P. P, Boechat-Roberty, H. M, da Silveira, E. F, Pilling, S, Iza, P, Martinez, R, Farenzena, L. S, Homem, M. G. P, Rocco, M. L. M

“…In this work, the fragmentation, survival, and chemical reactions of formic acid (HCOOH) molecules condensed at 56 K are analyzed using plasma desorption mass…”
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Cluster emission and chemical reactions in oxygen and nitrogen ices induced by fast heavy-ion impact by Ponciano, C.R, Martinez, R, Farenzena, L.S, Iza, P, Homem, M.G.P, Naves de Brito, A, Wien, K, da Silveira, E.F

“…Two ices, O₂ and a mixture of O₂ and N₂, are bombarded by ²⁵²Cf fission fragments (FF) (~65 MeV at target surface); the emitted positive and negative secondary…”
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Electronic sputtering produced by fission fragments on condensed CO and CO2 by PONCIANO, C. R, MARTINEZ, R, FARENZENA, L. S, IZA, P, DA SILVEIRA, E. F, HOMEM, M. G. P, DE BRITO, A. Naves, WIEN, K

“…Condensed CO and CO2 are bombarded by approximately 65 MeV 252Cf fission fragments and the desorbed ions are analyzed by time-of-flight mass spectrometry as a…”
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Secondary ion emission from condensed CO bombarded by fission fragments by Farenzena, L.S., Martinez, R., Iza, P., Ponciano, C.R., Homem, M.G.P., Naves de Brito, A., da Silveira, E.F., Wien, K.

“…Frozen CO was bombarded by ∼65 MeV fission fragments and the emitted secondary ions were analyzed by time-of-flight mass spectrometry. Target was kept at UHV…”
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Secondary ion emission dynamics model: A tool for nuclear track analysis by Iza, P., Farenzena, L.S., Jalowy, T., Groeneveld, K.O., da Silveira, E.F.

“…The initial velocity distribution of secondary ions is employed as a tool to analyze nuclear track formation processes occurring in the picosecond time range…”
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Secondary ion emission induced by fission fragment impact in CO----NH₃ and CO----NH₃----H₂O ices: modification in the CO----NH₃ ice structure by Martinez, R, Farenzena, L.S, Iza, P, Ponciano, C.R, Homem, M.G.P, de Brito, A. Naves, Wien, K, da Silveira, E.F

“…CO---NH₃ and CO---NH₃-H₂O ices at 25-130 K were bombarded by ²⁵²Cf fission fragments (~65 MeV at the target surface) and the emitted secondary ions were…”
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Non-Born–Oppenheimer electron, nuclear and nuclear–electron second-order density matrices for exactly solvable four-particle model system by Ludeña, E. V., Iza, P., Cornejo, M., Zambrano, D.

“…Properties of the non-Born–Oppenheimer two-matrix are examined for four-particle systems of the Coulomb–Hooke and Moshinsky types. We obtain for both these…”
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Electronic Sputtering Analysis of Astrophysical Ices by Farenzena, L S, Iza, P, Martinez, R, Fernandez-Lima, F A, Duarte, ESeperuelo, Faraudo, G S, Ponciano, C R, Homem, MGP, Brito, ANaves, Wien, K, Silveira, E F

“…Experimental results on fast ion collision with icy surfaces having astrophysical interest are presented. 252Cf fission fragments projectiles were used to…”
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Effects of projectile track charging on the H− secondary ion velocity distribution by Iza, P., Farenzena, L.S., da Silveira, E.F.

“…The bombardment of insulating targets by MeV projectiles produces a positive track delivering secondary electrons to the solid. These electrons are eventually…”
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Ion cluster desorption from frozen NH3 induced by impact of fast multi-charged ions by Martinez, R., Ponciano, C.R., Farenzena, L.S., Iza, P., Homem, M.G.P., Naves de Brito, A., Wien, K., da Silveira, E.F.

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Hybrid molecular ions emitted from CO–NH3 ice bombarded by fission fragments by Martinez, R., Ponciano, C.R., Farenzena, L.S., Iza, P., Homem, M.G.P., Naves de Brito, A., da Silveira, E.F., Wien, K.

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Secondary ion emission induced by fission fragment impact in CO-NH(3) and CO-NH(3)-H(2)O ices: modification in the CO-NH(3) ice structure by Martinez, R, Farenzena, L S, Iza, P, Ponciano, C R, Homem, M G P, de Brito, A Naves, Wien, K, da Silveira, E F

“…CO-NH(3) and CO-NH(3)-H(2)O ices at 25-130 K were bombarded by (252)Cf fission fragments ( approximately 65 MeV at the target surface) and the emitted…”
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Secondary ion emission induced by fission fragment impact in CONH 3 and CONH 3 H 2 O ices: modification in the CONH 3 ice structure by Martinez, R., Farenzena, L. S., Iza, P., Ponciano, C. R., Homem, M. G. P., de Brito, A. Naves, Wien, K., da Silveira, E. F.

“…Abstract CONH 3 and CONH 3 –H 2 O ices at 25–130 K were bombarded by 252 Cf fission fragments (∼65 MeV at the target surface) and the emitted secondary ions…”
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Hybrid molecular ions emitted from CO–NH 3 ice bombarded by fission fragments by Martinez, R., Ponciano, C.R., Farenzena, L.S., Iza, P., Homem, M.G.P., Naves de Brito, A., da Silveira, E.F., Wien, K.

“…CO–NH 3 ice at 25 K is bombarded by 65 MeV fission fragments and the emitted secondary ions are analyzed by time-of-flight mass spectrometry. The yields of the…”
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Plasma Desorption Mass Spectrometry analysis of HCOOH ice by Andrade, D.P.P., Rocco, M.L.M., Boechat-Roberty, H.M., Iza, P., Martinez, R., Homem, M.G.P., da Silveira, E.F.

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Ion cluster desorption from frozen NH 3 induced by impact of fast multi-charged ions by Martinez, R., Ponciano, C.R., Farenzena, L.S., Iza, P., Homem, M.G.P., Naves de Brito, A., Wien, K., da Silveira, E.F.

“…Ion cluster desorption yields due to the impact of 252Cf fission fragments on condensed ammonia are determined. Identification and abundance of the ion…”
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Electronic sputtering produced by fission fragments on condensed CO and CO{sub 2} by Ponciano, C. R., Martinez, R., Farenzena, L. S., Iza, P., Silveira, E. F. da, Homem, M. G. P., Brito, A. Naves de, Wien, K.

“…Condensed CO and CO{sub 2} are bombarded by ∼65 MeV {sup 252}Cf fission fragments and the desorbed ions are analyzed by time-of-flight mass spectrometry as a…”
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Electronic Sputtering Produced by Fission Fragments on Condensed CO and CO 2 by Ponciano, C.R., Martinez, R., Farenzena, L.S., Iza, P., da Silveira, E.F., Homem, M.G.P., Naves de Brito, A., Wien, K.

“…Condensed CO and CO 2 are bombarded by ∼65 MeV 252Cf fission fragments and the desorbed ions are analyzed by time-of-flight mass spectrometry as a function of…”
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