Experimental cross sections for the formation of
196,198
Au isotopes in the
3
He +
197
Au reaction and
44,46
Sc isotopes in the
3
He +
45
Sc reaction are analyzed. To calculate transfer probabilities ...and cross sections, the time-dependent Schrödinger equation is numerically solved for the external neutrons of the
3
He,
45
Sc, and
197
Au nuclei. It is shown that the contribution from the fusion channel with subsequent evaporation is important for the
3
He +
45
Sc reaction and negligibly small for the
3
He +
197
Au reaction. Fusion–evaporation is taken into account using the NRV and PACE codes. Calculation results demonstrate overall satisfactory agreement with experimental data.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Experimental cross sections for the formation of 196,198Au isotopes in the 3He + 197Au reaction and 44,46Sc isotopes in the 3He + 45Sc reaction are analyzed. To calculate transfer probabilities and ...cross sections, the time-dependent Schrödinger equation is numerically solved for the external neutrons of the 3He, 45Sc, and 197Au nuclei. It is shown that the contribution from the fusion channel with subsequent evaporation is important for the 3He + 45Sc reaction and negligibly small for the 3He + 197Au reaction. Fusion-evaporation is taken into account using the NRV and PACE codes. Calculation results demonstrate overall satisfactory agreement with experimental data.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
The results of a joint analysis of experimental data (angular distributions for scattering and total reaction cross sections) are presented for the case of the interaction of sup.6,7Li ions with ...sup.28Si nuclei at energies between 7.5 and 32 MeV. The respective calculations were performed on the basis of a deformed potential of the optical model by using the SPI--GENOA code. The energy dependences of the parameters of the macroscopic optical model and the total cross section for the (sup.6,7Li + sup.28Si) reactions were obtained over the energy interval from 7.5 to 32 MeV. The calculated angular distributions and total reaction cross sections are in good agreement with experimental data. DOI:10.1134/S1063778814050111
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DOBA, EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, IZUM, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, SIK, UILJ, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Using a stepped-pole broad-range magnetic analyzer, the charge-state distributions of heavy ions have been measured upon their passing through thin carbon and gold foils. A review is presented of ...works on the charge distribution of heavy ions passing through solid targets and reaction products at the exits from these targets. The measured charge distributions of accelerated ions and ion-induced reaction products at the exit from the targets are compared to the theoretical values. It is shown that the calculated mean charges of heavy ions and reaction products can be used only as estimates.
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DOBA, EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, IZUM, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PILJ, PNG, SAZU, SBCE, SBJE, SBMB, UILJ, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
In high-spectral resolution experiments with the petawatt Vulcan laser, strong x-ray radiation of KK hollow atoms (atoms without n = 1 electrons) from thin Al foils was observed at pulse intensities ...of 3 × 10(20) W/cm(2). The observations of spectra from these exotic states of matter are supported by detailed kinetics calculations, and are consistent with a picture in which an intense polychromatic x-ray field, formed from Thomson scattering and bremsstrahlung in the electrostatic fields at the target surface, drives the KK hollow atom production. We estimate that this x-ray field has an intensity of >5 × 10(18) W/cm(2) and is in the 3 keV range.
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CMK, CTK, FMFMET, IJS, NUK, PNG, UM
New experimental measurements of the total reaction cross sections for the
6
He +
nat
Si and
9
Li +
nat
Si processes in the energy range of 5 to 40 A MeV are presented. A modified transmission method ...based on high-efficiency detection of prompt n–γ radiation has been used in the experiment. A bump is observed for the first time in the energy dependence σ
R
(
E
) at
E
∼ 10–30 A MeV for the
9
Li +
nat
Si reaction, and existence of the bump in σ
R
(
E
) at
E
∼ 10–20 A MeV first observed in the standard transmission experiments is experimentally confirmed for the
6
He +
nat
Si reaction. Theoretical analysis of the measured
6
He +
nat
Si and
9
Li +
nat
Si reaction cross sections is performed within the microscopic double folding model. Disagreement is observed between the experimental and theoretical cross sections in the region of the bump at the energies of 10 to 20 A MeV, which requires further study.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
This paper discusses the prospects for using modified detonation nanodiamonds with novel properties as a new promising material for the development of nanotechnologies intended for biological and ...medical purposes. The authors report that nanodiamonds synthesized by detonation can be used to further purify commercial protein preparations and that enzymes adsorbed on diamond nanoparticles retain their activity. The paper presents results of
in vivo experiments with nanodiamonds administered to animals via different routes.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
The results of a joint analysis of experimental data (angular distributions for scattering and total reaction cross sections) are presented for the case of the interaction of
6,7
Li ions with
28
Si ...nuclei at energies between 7.5 and 32 MeV. The respective calculations were performed on the basis of a deformed potential of the optical model by using the SPI-GENOA code. The energy dependences of the parameters of the macroscopic optical model and the total cross section for the (
6,7
Li+
28
Si) reactions were obtained over the energy interval from 7.5 to 32 MeV. The calculated angular distributions and total reaction cross sections are in good agreement with experimental data.
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DOBA, EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, IZUM, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, SIK, UILJ, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
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