Search Results - "Wien, K"

Secondary Ion Emission from Water Ice at 10–130 K Induced by MeV N2+ Ions by de Barros, A. L. F, Farenzena, L. S, Andrade, D. P. P, da Silveira, E. F, Wien, K

“…Secondary ion emission from vapor-deposited water ice has been investigated in exploring the influence of phase transitions on the desorption yield of H2O…”
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Late Quaternary sedimentation within a submarine channel–levee system offshore Cap Timiris, Mauritania by Zühlsdorff, C., Wien, K., Stuut, J.-B.W., Henrich, R.

“…Aeolian and fluvial sediment transport to the Atlantic Ocean offshore Mauritania were reconstructed based on grain-size distributions of the carbonate-free…”
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Ion desorption from frozen H2O irradiated by MeV heavy ions by COLLADO, V. M, FARENZENA, L. S, PONCIANO, C. R, DA SILVEIRA, E. F, WIEN, K

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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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Desorption of gold nanoclusters from gold nanodispersed targets by 200keV Au5 polyatomic ions in the elastic stopping mode: Experiment and molecular-dynamics simulation by Anders, C., Baranov, I., Della-Negra, S., Domaratsky, V., Fallavier, M., Novikov, A., Obnorsky, V., Wien, K., Yarmiychuk, S., Ziegenhain, G., Urbassek, H.M.

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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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Desorption of nanoclusters from gold nanodispersed layers by 72keV Au400 ions: Experiment and molecular dynamics simulation by Baranov, I., Della-Negra, S., Domaratsky, V., Chemezov, A., Novikov, A., Obnorsky, V., Pautrat, M., Anders, Chr, Urbassek, H.M., Wien, K., Yarmiychuk, S., Zhurkin, E.

“…The interaction of 72keV Au400 ions (with a diameter of approximately 2nm) with nanodispersed gold targets has been studied. These interactions are dominated…”
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Sputtering and emission of nanoclusters under bombardment of gold nanodispersed targets by 1MeV Au5 cluster ions by Baranov, I., Della-Negra, S., Fallavier, M., Kirillov, S., Beyec, Y. Le, Novikov, A., Obnorskii, V., Wien, K., Yarmiychuk, S.

“…Nanodispersed gold targets (2–100nm grains) were bombarded for the first time in the nuclear stopping region by 1MeV Au5 cluster ions (∑(dE/dx)n=45keV/nm and…”
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Desorption of gold nanoclusters (2–150nm) by 1GeV Pb ions by Baranov, I., Kirillov, S., Novikov, A., Obnorskii, V., Toulemonde, M., Wien, K., Yarmiychuk, S., Borodin, V.A., Volkov, A.E.

“…Nanodispersed targets of gold (grains sized at 2–150nm) were irradiated with 956MeV ions of Pb54+ ((dE/dx)e in gold 87keV/nm). Ejected gold was gathered on…”
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Sputtering of nanodispersed targets of gold and desorption of gold nanoclusters (2–100 nm) by 6 MeV Au5 cluster ions by Baranov, I, Brunelle, A, Della-Negra, S, Jacquet, D, Kirillov, S, Le Beyec, Y, Novikov, A, Obnorskii, V, Pchelintsev, A, Wien, K, Yarmiychuk, S

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Sputtering of nanodispersed targets of gold and desorption of gold nanoclusters (2–100 nm) by 6 MeV Au 5 cluster ions by Baranov, I, Brunelle, A, Della-Negra, S, Jacquet, D, Kirillov, S, Le Beyec, Y, Novikov, A, Obnorskii, V, Pchelintsev, A, Wien, K, Yarmiychuk, S

“…The first experiment on sputtering of nanodispersed targets of gold (size range of grains is 2–100 nm) by cluster ions Au 5 +(1.2 MeV/at., ∑(d E/d x) n =49…”
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Secondary electron emission from various metals and CsI bombarded by heavy molecular ions by Nguyen, VanTan, Wien, K.

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Line shifts in mass spectra of secondary ions ejected from solids by MeV-ion impact by Wien, K., Koch, Ch, Nguyen van Tan

“…Emission of hydrogen ions has been used to investigate the charging of the nuclear track being produced by fission fragments in organic solids. The question of…”
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Desorption of metal nanoclusters (2–40 nm) from nanodispersed targets of gold by swift heavy cluster (C 8, 20 MeV) and atomic (fission fragments) projectiles by Baranov, I., Brunelle, A., Della-Negra, S., Jacquet, D., Kirillov, S., Le Beyec, Y., Novikov, A., Obnorskii, V., Pchelintsev, A., Wien, K., Yarmijchuk, S.

“…New results on desorption of metal nanoclusters from nanodispersed targets by ions are obtained through irradiation with swift heavy cluster projectiles (20…”
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Temperature dependence of ion formation in the nuclear track plasma by Wien, K., de Castro, C.S.C.

“…Secondary ion emission from organic Van der Waals solids irradiated by 252Cf-fission fragments was studied as a function of sample temperature. The samples…”
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Macrocluster desorption effect caused by single MCI: charges of gold clusters (2–20 nm) desorbed due to electronic processes induced by fission fragment bombardment in nanodispersed gold targets by Baranov, I, Jarmiychuk, S, Kirillov, S, Novikov, A, Obnorskii, V, Pchelintsev, A, Wien, K, Reimann, C

“…In this work the charge state of the negatively charged gold nanocluster ions (2–20 nm) that were desorbed from nanodispersed gold islet targets by 252Cf…”
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H + emission by MeV-ion impact: Charge state dependence of energy and angular distributions by Most, M., Wien, K., Brunelle, A., Della Negra, S., Depauw, J., Jacquet, D., Pautrat, M., LeBeyec, Y.

“…A linear time-of-flight mass spectrometer equipped with two acceleration grids and a position sensitive stop detector was used to measure the initial energies…”
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Detection of Large Cluster Ions by Ion-to-ion Conversion by Nguyen, Van-Tan, Wien, K., Baranov, I. V., Novikov, A. C., Obnorskii, V. V.

“…Gold cluster ions in the mass range of 4×104–2×106 u were produced by bombarding a thin film of gold with 252Cf fission fragments. The gold film which covered…”
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