Measurement of neutron-production double-differential cross sections for intermediate energy pion incident reaction

Citation
Y. Iwamoto et al., Measurement of neutron-production double-differential cross sections for intermediate energy pion incident reaction, J NUC SCI T, 38(6), 2001, pp. 363-369
Citations number
18
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Nuclear Emgineering
Journal title
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
ISSN journal
0022-3131 → ACNP
Volume
38
Issue
6
Year of publication
2001
Pages
363 - 369
Database
ISI
SICI code
0022-3131(200106)38:6<363:MONDCS>2.0.ZU;2-B
Abstract
Neutron-production double-differential cross sections for 870-MeV pi (+) an d pi (-) and 2.1-GeV pi (+) mesons incident on iron and lead targets were m easured with NE213 liquid scintillators by time-of-flight technique. NE213 liquid scintillators 12.7 cm in diameter and 12.7 cm thick were placed in d irections of 15 degrees, 30 degrees, 60 degrees, 90 degrees, 120 degrees an d 150 degrees. The typical flight path length was 1.5 m. Neutron detection efficiencies were derived from the calculation results of SCINFUL and CECIL codes. The experimental results were compared with the cascade-evaporation calculation code NUCLEUS. The calculation results are higher typically by a factor of two than the experimental data at neutron energies below about 30MeV. NUCLEUS overestimates pi (+)-incident neutron-production cross secti ons in forward angles at neutron energies of 100 to 500 MeV.