Abstract
Double differential neutron spectra from a thick lead target bombarded with 0.5 and 1.5 GeV protons have been measured with the time-of-flight technique. In order to obtain the neutron spectra without the effect of the flight time fluctuation by neutron scattering in the target, an unfolding technique has also been employed in the low energy region below 3 MeV. The measured data have been compared with the calculated results of NMTC/JAERI-MCNP-4A code system. It has been found that the code system gives about 50 % lower neutron yield than the experimental ones in the energy region between 20 and 80 MeV for both incident energies. The disagreements, however, have been improved well by taking account of the inmedium nucleon-nucleon scattering cross sections in the NMTC/JAERI code. (author)
Meigo, Shin-ichiro;
Takada, Hiroshi;
Chiba, Satoshi
[1]
- Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment; and others
Citation Formats
Meigo, Shin-ichiro, Takada, Hiroshi, and Chiba, Satoshi.
Measurements of spallation neutrons from a thick lead target bombarded with 0.5 and 1.5 GeV protons.
Japan: N. p.,
1997.
Web.
Meigo, Shin-ichiro, Takada, Hiroshi, & Chiba, Satoshi.
Measurements of spallation neutrons from a thick lead target bombarded with 0.5 and 1.5 GeV protons.
Japan.
Meigo, Shin-ichiro, Takada, Hiroshi, and Chiba, Satoshi.
1997.
"Measurements of spallation neutrons from a thick lead target bombarded with 0.5 and 1.5 GeV protons."
Japan.
@misc{etde_530417,
title = {Measurements of spallation neutrons from a thick lead target bombarded with 0.5 and 1.5 GeV protons}
author = {Meigo, Shin-ichiro, Takada, Hiroshi, and Chiba, Satoshi}
abstractNote = {Double differential neutron spectra from a thick lead target bombarded with 0.5 and 1.5 GeV protons have been measured with the time-of-flight technique. In order to obtain the neutron spectra without the effect of the flight time fluctuation by neutron scattering in the target, an unfolding technique has also been employed in the low energy region below 3 MeV. The measured data have been compared with the calculated results of NMTC/JAERI-MCNP-4A code system. It has been found that the code system gives about 50 % lower neutron yield than the experimental ones in the energy region between 20 and 80 MeV for both incident energies. The disagreements, however, have been improved well by taking account of the inmedium nucleon-nucleon scattering cross sections in the NMTC/JAERI code. (author)}
place = {Japan}
year = {1997}
month = {Mar}
}
title = {Measurements of spallation neutrons from a thick lead target bombarded with 0.5 and 1.5 GeV protons}
author = {Meigo, Shin-ichiro, Takada, Hiroshi, and Chiba, Satoshi}
abstractNote = {Double differential neutron spectra from a thick lead target bombarded with 0.5 and 1.5 GeV protons have been measured with the time-of-flight technique. In order to obtain the neutron spectra without the effect of the flight time fluctuation by neutron scattering in the target, an unfolding technique has also been employed in the low energy region below 3 MeV. The measured data have been compared with the calculated results of NMTC/JAERI-MCNP-4A code system. It has been found that the code system gives about 50 % lower neutron yield than the experimental ones in the energy region between 20 and 80 MeV for both incident energies. The disagreements, however, have been improved well by taking account of the inmedium nucleon-nucleon scattering cross sections in the NMTC/JAERI code. (author)}
place = {Japan}
year = {1997}
month = {Mar}
}