Cross-section Measurements of (n,xn) Threshold Reactions in Au, Bi, I, In, and Ta
Result description
We measured neutron cross-sections of various threshold reactions using different quasi-monoenergetic sources in the range 17 - 94 MeV. Our motivation comes from the "Energy plus Transmutation project", in which Al, Au, Bi, In, Ta, Co, Y foils are used to measure the flux of high energy neutrons produced in spallation reactions. Unfortunately, no experimental cross-section data for observed threshold (n,xn) reactions are available at neutron energies above 20 MeV. We performed 11 measurements of the (n,xn) cross-sections using the neutron source in NPI ASCR cyclotron in Řež and at TSL cyclotron in Uppsala (EFNUDAT program). Quasi-monoenergetic neutrons from p+Li reaction irradiated above mentioned foils. Irradiated foils were measured on HPGe detectorsand spectroscopic corrections were applied to obtained cross-section data. A comparison with TALYS cross-section calculations was performed.
Keywords
cross-sectionthreshold reactionquasi-monoenergetic neutron sourceEnergy plus Transmutation
The result's identifiers
Result code in IS VaVaI
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Cross-section Measurements of (n,xn) Threshold Reactions in Au, Bi, I, In, and Ta
Original language description
We measured neutron cross-sections of various threshold reactions using different quasi-monoenergetic sources in the range 17 - 94 MeV. Our motivation comes from the "Energy plus Transmutation project", in which Al, Au, Bi, In, Ta, Co, Y foils are used to measure the flux of high energy neutrons produced in spallation reactions. Unfortunately, no experimental cross-section data for observed threshold (n,xn) reactions are available at neutron energies above 20 MeV. We performed 11 measurements of the (n,xn) cross-sections using the neutron source in NPI ASCR cyclotron in Řež and at TSL cyclotron in Uppsala (EFNUDAT program). Quasi-monoenergetic neutrons from p+Li reaction irradiated above mentioned foils. Irradiated foils were measured on HPGe detectorsand spectroscopic corrections were applied to obtained cross-section data. A comparison with TALYS cross-section calculations was performed.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Basic information
Result type
O - Miscellaneous
CEP
BG - Nuclear, atomic and molecular physics, accelerators
Year of implementation
2010