Search Results - "Ouichaoui, S"

Analytical fits for the synchrotron emission from a power-law particle distribution with a sharp cutoff by Fouka, M., Ouichaoui, S.

“…In several high-energy astrophysical sites, shocks are assumed to produce a power-law distribution of accelerated charged particles (e.g., electrons, protons)…”
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Stopping powers and energy loss straggling for (0.9–3.4) MeV protons in a kapton polyimide thin film by Damache, S., Djaroum, S., Ouichaoui, S., Amari, L., Moussa, D.

“…The energy loss and energy loss straggling widths have been measured in transmission for Ep≈(0.9–3.4) MeV protons traversing a thin kapton polyimide foil. In a…”
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SYNCHROTRON POLARIZATION AND SYNCHROTRON SELF-ABSORPTION SPECTRA FOR A POWER-LAW PARTICLE DISTRIBUTION WITH FINITE ENERGY RANGE by FOUKA, M, OUICHAOUI, S

“…We have derived asymptotic forms for the degree of polarization of the optically thin synchrotron and for synchrotron self-absorption (SSA) spectra assuming a…”
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Accurate stopping power measurements for (0.21–2.68)MeV/u 1H+ and 4He+ ions crossing thin Al foils; extraction of the (I, b) parameters by Moussa, D., Damache, S., Ouichaoui, S.

“…The stopping powers of thin Al foils for H+ and 4He+ ions have been measured over the energy range E=(206.03–2680.05)keV/amu with an overall relative…”
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External Inverse Compton Spectra for Monoenergetic and Blackbody Photon Fields Upscattered by a Power-law Electron Distribution with a Finite Energy Range by Fouka, M, Ouichaoui, S

“…We have calculated the inverse Compton (IC) integrated spectral power within the Thomson limit for a monoenergetic isotropic photon field upscattered off…”
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Synchrotron and Synchrotron Self-Absorption for a Power-Law Particle Distribution: Asymptotic forms for Finite Energy Range by Fouka, M, Ouichaoui, S

“…We calculate and plot the synchrotron power, P Delta *n, the absorption coefficient, Delta *a Delta *n, and the source function, S Delta *n, for a power-law…”
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Energy loss straggling of (0.5<Ep<2.0)MeV protons in formvar by Djaroum, S., Damache, S., Moussa, D., Ouichaoui, S., Amari, L.

“…Energy loss distributions for (0.5<Ep<2.0)MeV protons traversing polyvinyl formal have been measured in transmission. Then, they have been analyzed in order to…”
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Sputtering and surface structure modification of gold thin films deposited onto silicon substrates under the impact of 20–160keV Ar+ ions by Mammeri, S., Ouichaoui, S., Ammi, H., Dib, A.

“…•Sputter yields were measured for gold thin films under keV Ar+ ion bombardment.•RBS analysis was used to derive energy dependence of sputtering yield.•Surface…”
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Thermal spike model interpretation of sputtering yield data for Bi thin films irradiated by MeV 84Kr15+ ions by Mammeri, S., Ouichaoui, S., Ammi, H., Pineda-Vargas, C.A., Dib, A., Msimanga, M.

“…A modified thermal spike model initially proposed to account for defect formation in metals within the high heavy ion energy regime is adapted for describing…”
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Spectral analysis of time-integrated Konus–Wind GRBs: Implication on radiative mechanisms by Fouka, M., Ouichaoui, S.

“…We have analysed a sample of 328 time-integrated GRB prompt emission spectra taken via the Konus instrument on board the US GGS-Wind spacecraft between 2002…”
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Sputtering and surface state evolution of Bi under oblique incidence of 120keV Ar+ ions by Mammeri, S., Ouichaoui, S., Ammi, H., Hammoudi, H., Pineda-Vargas, C.A.

“…The sputtering and surface state evolution of Bi/Si targets under oblique incidence of 120keV Ar+ ions have been investigated over the range of incidence…”
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Hydrogen Burning of O 17 in Classical Novae by Chafa, A., Tatischeff, V., Aguer, P., Barhoumi, S., Coc, A., Garrido, F., Hernanz, M., José, J., Kiener, J., Lefebvre-Schuhl, A., Ouichaoui, S., de Séréville, N., Thibaud, J.-P.

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SYNCHROTRON AND SYNCHROTRON SELF-ABSORPTION FOR A POWER-LAW PARTICLE DISTRIBUTION: ASYMPTOTIC FORMS FOR FINITE ENERGY RANGE by FOUKA, M, OUICHAOUI, S

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Stopping of 236 keV – 3.019 MeV protons in mylar and polypropylene films by Damache, S., Ouichaoui, S., Belhout, A., Medouni, A., Toumert, I.

“…The stopping powers of polypropylene and mylar polymers for protons have been accurately measured over the energy intervals E p=(0.352–3.009) MeV and E…”
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Sputtering yields, range and range straggling in Al following Kr+ ions bombardment in the energy range (20–160)keV by Mammeri, S., Ouichaoui, S., Zemih, R., Ammi, H., Abdesselam, M., Chami, A.C.

“…The sputtering of Al metallic films by 84Kr+ ions has been studied over the energy range (20–160)keV. Sputtering yield data have been extracted by means of the…”
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Indirect study of 19Ne states near the threshold by de Séréville, N., Coc, A., Angulo, C., Assunção, M., Beaumel, D., Berthoumieux, E., Bouzid, B., Cherubini, S., Couder, M., Demaret, P., de Oliveira Santos, F., Figuera, P., Fortier, S., Gaelens, M., Hammache, F., Kiener, J., Lefebvre-Schuhl, A., Labar, D., Leleux, P., Loiselet, M., Ninane, A., Ouichaoui, S., Ryckewaert, G., Smirnova, N., Tatischeff, V.

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Sputtering and surface structure modification of gold thin films deposited onto silicon substrates under the impact of 20–160 keV Ar + ions by Mammeri, S., Ouichaoui, S., Ammi, H., Dib, A.

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γ-ray emission in proton-induced nuclear reactions on n a t C and Mylar targets over the incident energy range, E = 30 – 200 MeV. Astrophysical implications by Rahma, Y., Ouichaoui, S., Kiener, J., Lawrie, E.A., Lawrie, J.J., Tatischeff, V., Belhout, A., Moussa, D., Yahia-Cherif, W., Benhabiles-Mezhoud, H., Bucher, T.D., Dinoko, T.R.S., Chafa, A., Conradie, J.L., Damache, S., Debabi, M., Deloncle, I., Easton, J.L., Fouka, M., Hamadache, C., Hammache, F., Jones, P., Kheswa, B.V., Khumalo, N.A., Lamula, T., Majola, S.N.T., Ndayishimye, J., Negi, D., Noncolela, S.P., Ouziane, S., Papka, P., Peterson, S., Kumar Raju, M., Ramanathan, V., Rebeiro, B.M., de Séréville, N., Sharpey-Schafer, J.F., Shirinda, O., Wiedeking, M., Wyngaardt, S.

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γ-ray emission in proton-induced nuclear reactions on natC and Mylar targets over the incident energy range, Ep = 30 – 200 MeV. Astrophysical implications by Rahma, Y., Ouichaoui, S., Kiener, J., Lawrie, E.A., Lawrie, J.J., Tatischeff, V., Belhout, A., Moussa, D., Yahia-Cherif, W., Benhabiles-Mezhoud, H., Bucher, T.D., Dinoko, T.R.S., Chafa, A., Conradie, J.L., Damache, S., Debabi, M., Deloncle, I., Easton, J.L., Fouka, M., Hamadache, C., Hammache, F., Jones, P., Kheswa, B.V., Khumalo, N.A., Lamula, T., Majola, S.N.T., Ndayishimye, J., Negi, D., Noncolela, S.P., Ouziane, S., Papka, P., Peterson, S., Kumar Raju, M., Ramanathan, V., Rebeiro, B.M., de Séréville, N., Sharpey-Schafer, J.F., Shirinda, O., Wiedeking, M., Wyngaardt, S.

“…We have measured the γ-ray line production cross sections in proton-induced nuclear reactions on various target nuclei (12C, 16O, 24Mg, 28Si, 56Fe) of chemical…”
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Spectral analysis of time-integrated Konus―Wind GRBs: Implication on radiative mechanisms: NEUTRON STARS AND GAMMA RAY BURSTS by FOUKA, M, OUICHAOUI, S

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