Author: R. K. TripathiPublisher:
ISBN:
Category : Cross sections (Nuclear physics)
Languages : en
Pages : 20
Book Description
Proton-Nucleus Elastic Cross Sections Using Two-Body In-Medium Scattering Amplitudes
Author: R. K. TripathiPublisher:
ISBN:
Category : Cross sections (Nuclear physics)
Languages : en
Pages : 20
Book Description
Proton-Nucleus Elastic Cross Sections Using Two-Body In-Medium Scattering Amplitudes
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781721268665
Category :
Languages : en
Pages : 32
Book Description
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
Proton-nucleus Elastic Cross Sections Using Two-body In-medium Scattering Amplitudes ... Nasa/tp-2001-211043 ... Oct. 11, 2001
Author: United States. National Aeronautics and Space AdministrationPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Proton-Nucleus Total Cross Sections in Coupled-Channel Approach
Author: R. K. TripathiPublisher:
ISBN:
Category : Cross sections (Nuclear physics)
Languages : en
Pages : 18
Book Description
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 Total Cross Sections in Coupled-Channel Approach
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781721217137
Category :
Languages : en
Pages : 30
Book Description
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. Tripathi, R. K. and Wilson, John W. and Cucinotta, Francis A. Johnson Space Center; Langley Research Center NASA/TP-2000-210534, L-17994, NAS 1.60:210534
Elastic Scattering Cross-sections of 14.5 MeV Protons for Medium Weight Nuclei
Author: John Gordon KellyInclusive Proton Spectra and Total Reaction Cross Sections for Proton-nucleus Scattering at 800 MeV.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Current applications of multiple scattering theory to describe the elastic scattering of medium energy protons from nuclei have been shown to be quite successful in reproducing the experimental cross sections. These calculations use the impulse approximation, wherein the scattering from individual nucleons in the nucleus is described by the scattering amplitude for a free nucleon. Such an approximation restricts the inelastic channels to those initiated by nucleon-nucleon scattering. As a first step in determining the nature of p + nucleus scattering at 800 MeV, both total reaction cross sections and (p, p') inclusive cross sections were measured and compared to the free p + p cross sections for hydrogen, deuterium, calcium 40, carbon 12, and lead 208. It is concluded that as much as 85% of all reactions in a nucleus proceed from interactions with a single nucleon in the nucleus, and that the impulse approximation is a good starting point for a microscopic description of p + nucleus interactions at 800 MeV.
Nuclear Science Abstracts
Author: NASA Technical Paper
Author: NASA Technical Paper
Author: United States. National Aeronautics and Space AdministrationPublisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 164
Book Description