Inversion of experimental data to generate state‐to‐state cross sections for rovibrationally inelastic scattering of CO2 by hot hydrogen atoms

1990 ◽  
Vol 92 (1) ◽  
pp. 347-357 ◽  
Author(s):  
Thomas G. Kreutz ◽  
Farooq A. Khan ◽  
George W. Flynn
Keyword(s):  
Experimental Data ◽  
Inelastic Scattering ◽  
Cross Sections ◽  
Hydrogen Atoms

Born Cross Sections for Inelastic Scattering of Electrons by Hydrogen Atoms. II.4s,4p,4d,4fStates

1960 ◽  
Vol 119 (1) ◽  
pp. 153-155 ◽  
Author(s):  
Leonard Fisher ◽  
S. N. Milford ◽  
Frank R. Pomilla
Keyword(s):  
Inelastic Scattering ◽  
Cross Sections ◽  
Hydrogen Atoms

Born Cross Sections for Inelastic Scattering of Electrons by Hydrogen Atoms. III.5s,5p,5d,5f,5gStates

1960 ◽  
Vol 120 (5) ◽  
pp. 1715-1717 ◽  
Author(s):  
S. N. Milford ◽  
John J. Morrissey ◽  
Joseph H. Scanlon
Keyword(s):  
Inelastic Scattering ◽  
Cross Sections ◽  
Hydrogen Atoms

scholarly journals Collective Reactions in the Continuum

2019 ◽  
Vol 7 ◽  
pp. 209
Author(s):  
P. Demetriou ◽  
A. Marcinkowski ◽  
P. E. Hodgson
Keyword(s):  
Experimental Data ◽  
Inelastic Scattering ◽  
Cross Sections ◽  
Absolute Magnitude ◽  
Collective Excitations ◽  
Scattering Data ◽  
Detailed Structure ◽  
Sum Rule ◽  
Neutron Inelastic Scattering ◽  
The Continuum

We show that pre-equlibrium inelastic scattering reactions to the continuum contain substantial collective components in addition to the multistep direct and multistep compound reactions. These collective reactions are investigated for the vibrational nuclei 56Fe, 58Ni, 90Zr, 93Nb, 208Pb and 209Bi , and the strongly-deformed, rotational W nucleus. The collective cross-sections are calculated using the experimental data for low-lying collective excitations supplemented where necessary by the giant multipole resonances evaluated using the energy-weight ed sum rule. The MSC and MSD cross-sections are evaluated by the Feshbach-Kerman-Koonin theory using a consistent set of parameters determined by analyses of (p, xn) reactions, that have practically no collective components. The results are compared with high-resolution neutron inelastic scattering data and prove able to account for the absolute magnitude of the cross-sections and also their detailed structure.

K± SCATTERING FROM 6Li AND 12C NUCLEI

2013 ◽  
Vol 22 (11) ◽  
pp. 1350084 ◽  
Author(s):  
A. A. EBRAHIM
Keyword(s):  
Experimental Data ◽  
Inelastic Scattering ◽  
Cross Sections ◽  
Alpha Particle ◽  
Differential Cross ◽  
Differential Cross Sections ◽  
Superposition Model ◽  
Elastic And Inelastic Scattering ◽  
Optical Potentials

Optical potentials for the scattering of K ± from 6 Li and 12 C nuclei are calculated using the Watanabe superposition model in terms of the alpha-particle and deuteron optical potentials. The elastic and inelastic scattering differential cross-sections obtained using these potentials are compared with experimental data. Good fits are obtained without modifying any of the parameters. Further measurements for K ± scattering from 6 Li are stressed.

Formation of ground and excited hydrogen atoms in proton–rubidium inelastic scattering

2016 ◽  
Vol 94 (4) ◽  
pp. 431-436
Author(s):  
S.A. Elkilany
Keyword(s):  
Inelastic Scattering ◽  
Cross Sections ◽  
Incident Energy ◽  
Computer Code ◽  
Inelastic Collisions ◽  
Hydrogen Atoms ◽  
Total Cross Sections ◽  
Rubidium Atoms ◽  
Wide Range ◽  
First Time

Inelastic collisions of protons with rubidium atoms are treated for the first time within the framework of the three channel coupled static, and frozen core approximations. The method is used for calculating partial and total cross sections with the assumption that only three channels (elastic; non-excited hydrogen, 1s-state; and excited hydrogen, 2s-state) are open. We have used the Lipmann–Schwinger equation and the Green’s functions iterative numerical method technique to solve the derived coupled integro-differential equations to obtain the computer code. The present results for total hydrogen formation cross sections are in agreement with results of other available ones in a wide range of incident energy.

scholarly journals INVESTIGATION OF DEUTERON SCATTERING BY 7 Li NUCLEI AT ENERGY OF 14.5 MeV

2018 ◽  
pp. 15-22
Author(s):  
Nassurlla Maulen ◽  
Burtebayev Nassurlla ◽  
Kerimkulov Zhambul ◽  
Suzuki Takechi ◽  
Sakuta Stanislav ◽  
...  
Keyword(s):  
Experimental Data ◽  
Inelastic Scattering ◽  
Cross Sections ◽  
Nuclear Reactions ◽  
Structural Characteristics ◽  
Cluster Structure ◽  
Lithium Isotopes ◽  
Optical Potentials ◽  
Nuclear Models ◽  
Cluster Exchange

The pronounced cluster structure of lithium isotopes is an excellent test for verification the various theoretical nuclear models. The study of the cluster exchange mechanism in direct nuclear reactions opens new possibilities in determining the structures of these nuclei. The sets of parameters of optical potentials available in the literature are vary, that can lead to ambiguity in determining the cluster spectroscopic factors of the studied nuclei. Therefore, an experimental study of the scattering process at energy E = 14.5 MeV has been carried out in order to obtain an independent global systematic of optical potentials for the d + 7 Li system. New experimental data were obtained in the current paper on the elastic and inelastic scattering of deuterons on 7 Li nuclei at energy E = 14.5 MeV. In addition to this, in our analysis we used experimental data on elastic scattering, measured previously at deuteron energies from 7 to 28 MeV. The analysis of the differential cross sections was performed within the framework of the optical model. The optimal parameters of optical potentials for the studied nucleus are established. The obtained parameters in this work will be used in the analysis of the data on inelastic scattering of deuterons and the 7 Li (d, t) reaction to refine the structural characteristics of lithium isotopes.

Born Cross Sections for Inelastic Scattering of Electrons by Hydrogen Atoms. I.3s,3p,3dStates

1960 ◽  
Vol 119 (1) ◽  
pp. 149-153 ◽  
Author(s):  
Gerard C. McCoyd ◽  
S. N. Milford ◽  
John J. Wahl
Keyword(s):  
Inelastic Scattering ◽  
Cross Sections ◽  
Hydrogen Atoms

Energy loss of protons passing through hydrogen

1955 ◽  
Vol 232 (1190) ◽  
pp. 423-434 ◽  
Keyword(s):  
Experimental Data ◽  
Energy Loss ◽  
Total Energy ◽  
Detailed Analysis ◽  
Cross Sections ◽  
Atomic Hydrogen ◽  
Heavy Particle ◽  
Stopping Power ◽  
Particle Collisions ◽  
Hydrogen Atoms

The cross-sections of processes involving protons and hydrogen atoms calculated by Bates, Dalgarno and Griffing using the Bom approximation are employed to make a detailed analysis of the contributions of excitation, ionization and capture to the stopping power of a gas of atomic hydrogen for a beam consisting initially of protons. A range of beam energies from 10 keV to 3 MeV is covered. The computed total energy loss is compared with experimental data and the accuracy of the Bom approximation for heavy particle collisions is discussed.

scholarly journals Emission of Fast Hydrogen Atoms in a Low Density Gas Discharge—The Most “Natural” Mirror Laboratory

Atoms ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 81
Author(s):  
Oleksandr Marchuk ◽  
Sven Dickheuer ◽  
Stephan Ertmer ◽  
Yuri Krasikov ◽  
Philippe Mertens ◽  
...  
Keyword(s):  
Experimental Data ◽  
Cross Sections ◽  
Ground State ◽  
Low Density ◽  
Hydrogen Atoms ◽  
Time Resolved ◽  
Line Shapes ◽  
Strong Signal ◽  
Balmer Lines ◽  
The Doppler Effect

In this work, we present a new application for the line shapes of emission induced by reflected hydrogen atoms. Optical properties of the solids in contact with the plasma could be effectively measured at the wavelength of Balmer lines: time-resolved measurements of reflectance and polarization properties of mirrors are performed using the wavelength separation of the direct and reflected signals. One uses the Doppler effect of emission of atoms excited by collisions with noble gases, primarily with Ar or with Kr. In spite of a new application of line shapes, the question of the source of the strong signal in the case of Ar exists: the emission observed in the case of the excitation of H or D atoms by Ar exceeds the signal induced by collisions with Kr atoms by a factor of five, and the only available experimental data for the ground state excitation show practically equal cross-sections for both gases in the energy range of 80–200 eV.

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