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Studying Nuclear Level Densities of 238U in the Nuclear Reactions within the Macroscopic Nuclear Models

  • Rohallah Razavi EMAIL logo , Azam Rahmatinejad , Tayeb Kakavand , Fariba Taheri , Maghsood Aghajani and Asghar Khooy
Published/Copyright: January 12, 2016
Zeitschrift für Naturforschung A
From the journal Zeitschrift für Naturforschung A Volume 71 Issue 2

Abstract

In this work the nuclear level density parameters of 238U have been extracted in the back-shifted Fermi gas model (BSFGM), as well as the constant temperature model (CTM), through fitting with the recent experimental data on nuclear level densities measured by the Oslo group. The excitation functions for 238U(p,2nα)233Pa, and 238U(p,4n)235Np reactions and the fragment yields for the fragments of the 238U(p,f) reaction have been calculated using obtained level density parameters. The results are compared to their corresponding experimental values. It was found that the extracted excitation functions and the fragment yields in the CTM coincide well with the experimental values in the low-energy region. This finding is according to the claim made by the Oslo group that the extracted level densities of 238U show a constant temperature behaviour.

Keywords: Excitation Functions; Nuclear Level Density; Nuclear Reaction
PACS Numbers:: 21.10.Ma; 24.10.-i
Corresponding author: Rohallah Razavi, Faculty of Science, Department of Physics, Imam Hossein Comprehensive University, Tehran, Iran, E-mail:

Acknowledgments

We would like to thank Dr. Arjan Koning for useful comments.

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Received: 2015-8-1
Accepted: 2015-12-3
Published Online: 2016-1-12
Published in Print: 2016-2-1

©2016 by De Gruyter

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  3. The Modified Simple Equation Method, the Exp-Function Method, and the Method of Soliton Ansatz for Solving the Long–Short Wave Resonance Equations
  4. Application of the Reverberation-Ray Matrix to the Non-Fourier Heat Conduction in Functionally Graded Materials
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  6. Structural, Electronic, Magnetic and Optical Properties of Ni,Ti/Al-based Heusler Alloys: A First-Principles Approach
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  9. Studying Nuclear Level Densities of 238U in the Nuclear Reactions within the Macroscopic Nuclear Models
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  11. Investigation of Thermal Expansion and Physical Properties of Carbon Nanotube Reinforced Nanocrystalline Aluminum Nanocomposite
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https://doi.org/10.1515/zna-2015-0339
Keywords for this article
Excitation Functions; Nuclear Level Density; Nuclear Reaction

Articles in the same Issue

  1. Frontmatter
  2. Soliton, Breather, and Rogue Wave for a (2+1)-Dimensional Nonlinear Schrödinger Equation
  3. The Modified Simple Equation Method, the Exp-Function Method, and the Method of Soliton Ansatz for Solving the Long–Short Wave Resonance Equations
  4. Application of the Reverberation-Ray Matrix to the Non-Fourier Heat Conduction in Functionally Graded Materials
  5. Rational Solutions for Lattice Potential KdV Equation and Two Semi-discrete Lattice Potential KdV Equations
  6. Structural, Electronic, Magnetic and Optical Properties of Ni,Ti/Al-based Heusler Alloys: A First-Principles Approach
  7. Ab Initio Calculations on the Structural, Mechanical, Electronic, Dynamic, and Optical Properties of Semiconductor Half-Heusler Compound ZrPdSn
  8. Qualitative Behaviour of Generalised Beddington Model
  9. Studying Nuclear Level Densities of 238U in the Nuclear Reactions within the Macroscopic Nuclear Models
  10. Total π-Electron Energy of Conjugated Molecules with Non-bonding Molecular Orbitals
  11. Investigation of Thermal Expansion and Physical Properties of Carbon Nanotube Reinforced Nanocrystalline Aluminum Nanocomposite
  12. Bistable Bright Optical Spatial Solitons due to Charge Drift and Diffusion of Various Orders in Photovoltaic Photorefractive Media Under Closed-Circuit Conditions
  13. Application of a Differential Transform Method to the Transient Natural Convection Problem in a Vertical Tube with Variable Fluid Properties
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