15th International Conference on Nuclear Data for Science and Technology (ND2022)

Session

Other applications

28 Jul 2022, 09:40

American River

Conveners

Other applications: I

• David Brown

Other applications: II / Spallation

• Alain Hebert

Description

Non-reactor applications of nuclear data

71. Decay Data for Radionuclide Monitoring Applications

Paraskevi Dimitriou (International Atomic Energy Agency)

28/07/2022, 09:40

Radionuclide monitoring involves measurements of the concentrations of radioactive particles and noble gases in air, soil, and liquid samples. After collection and appropriate treatment of the samples, γ and β emissions are measured by means of Ge detectors and β counters, respectively. Quantification of such spectra relies heavily on up-to-date evaluations of the nuclear structure and decay...

73. Implementation of the ELECTR module in NJOY

Prof. Alain Hébert (Polytechnique Montréal)

28/07/2022, 10:04

Abstract

The ELECTR module of NJOY is designed to produce complete and accurate multigroup electroatomic cross sections from ENDF/B-IV, -V -VI or -VII data[1]. It will also work with the newer formats developed for ENDF/B-VII. ELECTR produces restricted cross sections consistent with a solution of the multigroup Boltzmann-Fokker-Planck (BFP) equation. Total, elastic, inelastic (collision...

72. Validation of the ELECTR module in NJOY

Ahmed Naceur (École Polytechnique de Montréal)

28/07/2022, 10:16

The NJOY nuclear data processing system is widely used for pointwise and multigroup neutronic and photonic cross sections production from Evaluated Nuclear Data Files (ENDF). Current restriction to neutral particles-induced evaluations limits the scope of the system's mission to applications related to fission and fusion reactor design, licensing and safety analysis, stockpile stewardship...

75. Decay Data Evaluation Project: Updating the evaluations of nuclear decay data and their importance in radionuclide metrology

Dr Aurelian Luca (IFIN-HH), Xavier Mougeot (CEA)

28/07/2022, 10:28

Reliable and precise nuclear decay data are essential in many applications. In radionuclide metrology, decay data are input parameters in calculations related to radioactivity measurements, when absolute or relative standardisation methods are used. This is why the metrology community, especially in Europe, has carefully evaluated decay schemes and atomic and nuclear data for the last 50...

76. Evaluation of delayed neutron yields and time spectra from photofission of $^{238}U$ induced by $\textit{Bremsstrahlung}$ photons below 9 MeV

Adrien Sari (Université Paris-Saclay, CEA, List, F-91120 Palaiseau, France)

28/07/2022, 10:40

Few data exist regarding the yields and the six group time spectra of delayed neutrons from the photofission reaction on actinides. In 1966, Nikotin et al. published data for the photofission of ²³²Th, ²³⁵U, ²³⁸U and ²³⁹Pu induced by Bremsstrahlung photons with an endpoint energy at 15 MeV. In 1970, Kull et al. presented data for the...

78. Spallation reaction study for long-lived fission products in nuclear waste: Cross-section measurements for 107Pd on proton and deuteron at different reaction energy

He Wang (RIKEN)

28/07/2022, 11:30

Reduction in the quantity of high-level radioactive waste in the spent fuel is one of the major issues for the use of a nuclear power plant. In recent years, substantial research and development activity has been devoted to the partitioning and transmutation technology for the reduction and recycling of radioactive waste. The transmutation on the long-lived fission products (LLFPs) in the...

79. Measurement of displacement cross-sections of Nb irradiated by protons with kinetic energy range between 0.4 and 3 GeV

Dr Shin-ichiro Meigo (J-PARC/JAEA)

28/07/2022, 11:54

In high-intensity proton accelerator facilities such as Accelerator Driven System (ADS) and the spallation neutron source, it is crucial to evaluate the damage of beam-interception materials and accelerator components, such as a magnet coil. The displacement per atom (dpa) is used as a damage index, which is derived by integrating the particle flux and the displacement cross section based on...

81. Calculations and Evaluations of n + 58,60,61,62,64,nat.Ni Reactions up to 200 MeV

Min Jia (North China University of Water Resources and Electric Power)

28/07/2022, 12:06

All cross sections, angular distributions, energy spectra, and double-differential cross sections for n + 58,60,61,62,64, nat.Ni reactions are consistently calculated and analyzed in the incident neutron energies from 0.001 to 200 MeV by using nuclear theoretical models, including the optical model, the unified Hauser-Feshbach theory and the exciton model, the improved Iwamoto-Harada model,...

82. Measurement of the neutron total cross section of 9Be at the Back-n white neutron source of CSNS

Mr Jiangbo Bai (Fudan university)

28/07/2022, 12:18

The neutron total cross section data of 9Be plays an important role in nuclear structure model of light nuclei and nuclear power installations. A measurement of the neutron total cross section of 9Be in the 1eV-30MeV energy region has been carried out using time-of-flight method and transmission method by the neutron total cross-sectional spectrometer (NTOX) based on the multi-layer fast...

85. The cross sections and energy spectra of the particle emission in α induced reaction on 58,60,61,62,64,nat.Ni

Xinwu Su (Shanxi Datong University, China)

28/07/2022, 12:30

Nuclear data for alpha particle induced reactions on 58,60,61,62,64,nat.Ni plays an important role in the application of nuclear techniques like charged particle activation analysis, medical isotope production, estimation of neutron yield and residual activity of accelerator components or simulation of radiation damage. All cross sections of α-induced reactions, angular distributions, energy...