Back to Search
Start Over
Accurate measurement of the standard 235U(n,f) cross section from thermal to 170 keV neutron energy
- Source :
- EPJ Web of Conferences, Vol 239, p 08002 (2020), EPJ Web Conf., 2019 International Conference on Nuclear Data for Science and Technology, 2019 International Conference on Nuclear Data for Science and Technology, May 2019, Beijing, China. pp.08002, ⟨10.1051/epjconf/202023908002⟩, idUS. Depósito de Investigación de la Universidad de Sevilla, instname, Digibug. Repositorio Institucional de la Universidad de Granada, Digibug: Repositorio Institucional de la Universidad de Granada, Universidad de Granada (UGR), idUS: Depósito de Investigación de la Universidad de Sevilla, Universidad de Sevilla (US)
- Publication Year :
- 2020
-
Abstract
- An accurate measurement of the 235U(n,f) cross section from thermal to 170 keV of neutron energy has recently been performed at n_TOF facility at CERN using 6Li(n,t)4He and 10B(n,α)7Li as references. This measurement has been carried out in order to investigate a possible overestimation of the 235U fission cross section evaluation provided by most recent libraries between 10 and 30 keV. A custom experimental apparatus based on in-beam silicon detectors has been used, and a Monte Carlo simulation in GEANT4 has been employed to characterize the setup and calculate detectors efficiency. The results evidenced the presence of an overestimation in the interval between 9 and 18 keV and the new data may be used to decrease the uncertainty of 235U(n,f) cross section in the keV region.
- Subjects :
- Physics
Large Hadron Collider
Silicon
010308 nuclear & particles physics
Fission
Physics::Instrumentation and Detectors
QC1-999
Monte Carlo method
Detector
n_TOF, 235U, fission, neutron time of flight
chemistry.chemical_element
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
01 natural sciences
Neutron temperature
Nuclear physics
Cross section (physics)
chemistry
0103 physical sciences
Thermal
Nuclear Physics - Experiment
010306 general physics
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- EPJ Web of Conferences, Vol 239, p 08002 (2020), EPJ Web Conf., 2019 International Conference on Nuclear Data for Science and Technology, 2019 International Conference on Nuclear Data for Science and Technology, May 2019, Beijing, China. pp.08002, ⟨10.1051/epjconf/202023908002⟩, idUS. Depósito de Investigación de la Universidad de Sevilla, instname, Digibug. Repositorio Institucional de la Universidad de Granada, Digibug: Repositorio Institucional de la Universidad de Granada, Universidad de Granada (UGR), idUS: Depósito de Investigación de la Universidad de Sevilla, Universidad de Sevilla (US)
- Accession number :
- edsair.doi.dedup.....397abd30e8a10040221605e21633eba7
- Full Text :
- https://doi.org/10.1051/epjconf/202023908002⟩