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Title: Complementary optical-potential analysis of {alpha}-particle elastic scattering and induced reactions at low energies

Abstract

A previously derived semi-microscopic analysis based on the Double Folding Model, for {alpha}-particle elastic scattering on A{approx}100 nuclei at energies below 32 MeV, is extended to medium mass A{approx}50-120 nuclei and energies from {approx}13 to 50 MeV. The energy-dependent phenomenological imaginary part for this semi-microscopic optical model potential was obtained including the dispersive correction to the microscopic real potential, and used within a concurrent phenomenological analysis of the same data basis. A regional parameter set for low-energy {alpha}-particles entirely based on elastic scattering data analysis was also obtained for nuclei within the above mentioned mass and energy ranges. Then, an ultimate assessment of ({alpha},{gamma}), ({alpha},n), and ({alpha},p) reaction cross sections considered target nuclei from {sup 45}Sc to {sup 118}Sn and incident energies below {approx}12 MeV. The former diffuseness of the real part of optical potential as well as the surface imaginary potential depth have been found to be responsible for the actual difficulties in the description of these data, and modified in order to obtain an optical potential which describes equally well both the low-energy elastic scattering and induced reaction data for {alpha}-particles.

Authors:
; ;  [1];  [2]
  1. 'Horia Hulubei' National Institute for Physics and Nuclear Engineering, P.O. Box MG-6, 76900 Bucharest (Romania)
  2. Freie Universitaet Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin (Germany)
Publication Date:
OSTI Identifier:
21274227
Resource Type:
Journal Article
Journal Name:
Atomic Data and Nuclear Data Tables
Additional Journal Information:
Journal Volume: 95; Journal Issue: 4; Other Information: DOI: 10.1016/j.adt.2009.02.001; PII: S0092-640X(09)00003-5; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0092-640X
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALPHA PARTICLES; ALPHA REACTIONS; CADMIUM 106; CHROMIUM 50; CHROMIUM 52; CHROMIUM 53; COBALT 59; COPPER 63; COPPER 65; CROSS SECTIONS; DATA ANALYSIS; ELASTIC SCATTERING; ENERGY DEPENDENCE; FOLDING MODEL; GERMANIUM 70; IRON 54; IRON 56; IRON 58; MANGANESE 56; MASS; MEV RANGE 10-100; MOLYBDENUM 92; MOLYBDENUM 94; NICKEL 58; NICKEL 60; NICKEL 62; NICKEL 64; OPTICAL MODELS; RUTHENIUM 96; RUTHENIUM 98; SCANDIUM 45; SILVER 107; TIN 112; TIN 112 TARGET; TIN 116; TIN 118; TIN 118 TARGET; TIN 122; TIN 124; TITANIUM 46; TITANIUM 48; TITANIUM 50; TITANIUM-ALPHA; VANADIUM 51; YTTRIUM 89; ZIRCONIUM 90; ZIRCONIUM 91

Citation Formats

Avrigeanu, M., Obreja, A C, Roman, F L, Avrigeanu, V, Oertzen, W von, and Hahn-Meitner-Institut, Glienicker Strasse 100, 14109 Berlin. Complementary optical-potential analysis of {alpha}-particle elastic scattering and induced reactions at low energies. United States: N. p., 2009. Web. doi:10.1016/j.adt.2009.02.001.
Avrigeanu, M., Obreja, A C, Roman, F L, Avrigeanu, V, Oertzen, W von, & Hahn-Meitner-Institut, Glienicker Strasse 100, 14109 Berlin. Complementary optical-potential analysis of {alpha}-particle elastic scattering and induced reactions at low energies. United States. https://doi.org/10.1016/j.adt.2009.02.001
Avrigeanu, M., Obreja, A C, Roman, F L, Avrigeanu, V, Oertzen, W von, and Hahn-Meitner-Institut, Glienicker Strasse 100, 14109 Berlin. 2009. "Complementary optical-potential analysis of {alpha}-particle elastic scattering and induced reactions at low energies". United States. https://doi.org/10.1016/j.adt.2009.02.001.
@article{osti_21274227,
title = {Complementary optical-potential analysis of {alpha}-particle elastic scattering and induced reactions at low energies},
author = {Avrigeanu, M. and Obreja, A C and Roman, F L and Avrigeanu, V and Oertzen, W von and Hahn-Meitner-Institut, Glienicker Strasse 100, 14109 Berlin},
abstractNote = {A previously derived semi-microscopic analysis based on the Double Folding Model, for {alpha}-particle elastic scattering on A{approx}100 nuclei at energies below 32 MeV, is extended to medium mass A{approx}50-120 nuclei and energies from {approx}13 to 50 MeV. The energy-dependent phenomenological imaginary part for this semi-microscopic optical model potential was obtained including the dispersive correction to the microscopic real potential, and used within a concurrent phenomenological analysis of the same data basis. A regional parameter set for low-energy {alpha}-particles entirely based on elastic scattering data analysis was also obtained for nuclei within the above mentioned mass and energy ranges. Then, an ultimate assessment of ({alpha},{gamma}), ({alpha},n), and ({alpha},p) reaction cross sections considered target nuclei from {sup 45}Sc to {sup 118}Sn and incident energies below {approx}12 MeV. The former diffuseness of the real part of optical potential as well as the surface imaginary potential depth have been found to be responsible for the actual difficulties in the description of these data, and modified in order to obtain an optical potential which describes equally well both the low-energy elastic scattering and induced reaction data for {alpha}-particles.},
doi = {10.1016/j.adt.2009.02.001},
url = {https://www.osti.gov/biblio/21274227}, journal = {Atomic Data and Nuclear Data Tables},
issn = {0092-640X},
number = 4,
volume = 95,
place = {United States},
year = {Wed Jul 15 00:00:00 EDT 2009},
month = {Wed Jul 15 00:00:00 EDT 2009}
}