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A Simple Method for Nucleon-Nucleon Cross Sections in a Nucleus

A Simple Method for Nucleon-Nucleon Cross Sections in a Nucleus
Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
Total Pages: 32
Release: 2018-09-24
Genre: Science
ISBN: 9781724000668

Download A Simple Method for Nucleon-Nucleon Cross Sections in a Nucleus Book in PDF, ePub and Kindle

A simple reliable formalism is presented for obtaining nucleon-nucleon cross sections within a nucleus in nuclear collisions for a given projectile and target nucleus combination at a given energy for use in transport, Monte Carlo, and other calculations. The method relies on extraction of these values from experiments and has been tested and found to give excellent results. Tripathi, R. K. and Cucinotta, Francis A. and Wilson, John W. Johnson Space Center; Langley Research Center NASA/TP-1999-209125, L-17791, NAS 1.60:209125


A Simple Method for Nucleon-Nucleon Cross Sections in a Nucleus

A Simple Method for Nucleon-Nucleon Cross Sections in a Nucleus
Author: R. K. Tripathi
Publisher:
Total Pages: 18
Release: 1999
Genre: Cross sections (Nuclear physics)
ISBN:

Download A Simple Method for Nucleon-Nucleon Cross Sections in a Nucleus Book in PDF, ePub and Kindle

A simple reliable formalism is presented for obtaining nucleon-nucleon cross sections within a nucleus in nuclear collisions for a given projectile and a target nucleus combination at a given energy for use in transport, Monte Carlo, and other calculations. The method relies on extraction of these values from experiments and has been tested and found to give excellent results.


Proton-Nucleus Total Cross Sections in Coupled-Channel Approach

Proton-Nucleus Total Cross Sections in Coupled-Channel Approach
Author: R. K. Tripathi
Publisher:
Total Pages: 18
Release: 2000
Genre: Cross sections (Nuclear physics)
ISBN:

Download Proton-Nucleus Total Cross Sections in Coupled-Channel Approach Book in PDF, ePub and Kindle

Recently, nucleon-nucleon (N-N) cross sections in the medium have been extracted directly from experiment. The in-medium N-N cross sections form the basic ingredients of several heavy-ion scattering approaches including the coupled-channel approach developed at the Langley Research Center. In the present study the ratio of the real to the imaginary part of the two-body scattering amplitude in the medium was investigated. These ratios are used in combination with the in-medium N-N cross sections to calculate total proton-nucleus cross sections. The agreement is excellent with the available experimental data. These cross sections are needed for the radiation risk assessment of space missions.


Proton-Nucleus Elastic Cross Sections Using Two-Body In-Medium Scattering Amplitudes

Proton-Nucleus Elastic Cross Sections Using Two-Body In-Medium Scattering Amplitudes
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
Total Pages: 32
Release: 2018-06-16
Genre:
ISBN: 9781721268665

Download Proton-Nucleus Elastic Cross Sections Using Two-Body In-Medium Scattering Amplitudes Book in PDF, ePub and Kindle

Recently, a method was developed of extracting nucleon-nucleon (NN) cross sections in the medium directly from experiment. The in-medium NN cross sections form the basic ingredients of several heavy-ion scattering approaches including the coupled-channel approach developed at the Langley Research Center. The ratio of the real to the imaginary part of the two-body scattering amplitude in the medium was investigated. These ratios are used in combination with the in-medium NN cross sections to calculate elastic proton-nucleus cross sections. The agreement is excellent with the available experimental data. These cross sections are needed for the radiation risk assessment of space missions. Tripathi, R. K. and Wilson, John W. and Cucinotta, Francis A. Johnson Space Center; Langley Research Center NASA/TP-2001-211043, L-18089, NAS 1.60:211043