Radiation Physics and Chemistry

Journal: Radiation Physics and Chemistry

Abbreviation

Radiat. phys. chem. (1977)

Publisher

Elsevier

ISSN

0969-806X

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Publications 1 - 9 of 9

Calibration technique and sample measurement database for material decomposition imaging using a compact deuterium-deuterium (D-D) fast neutron generator
Soubelet, Benoit; Adams, Robert; Kromer, Heiko; et al. (2020)
Radiation Physics and Chemistry
This work aims to describe experimental efforts to further development of an energy-selective based interrogation technique using a deuterium-deuterium (D-D) fast neutron generator. In this approach, elemental decomposition of a sample can be performed. Limitations of the technique include uncertainties related to the neutron spectrum and the actual elemental cross-section data. To circumvent these challenges, a calibration method using well-characterized homogeneous reference samples has been implemented. For this procedure, twenty-two reference samples were used to produce setup-specific reference data which can afterwards be used for elemental decomposition measurements using fast neutrons. Data for individual elements were obtained by measuring pure elemental samples or by subtracting elemental sample data from compound samples. Ultimately full cross-section characterization was obtained for nineteen individual elements. Although limitations to this approach were found, the general agreement between simulation and experiment was good. This technique, the measured results, and how it can be used for fast neutron elemental decomposition are described. © Elsevier Ltd. 2020
Computed tomography combined with a material decomposition technique using a compact deuterium-deuterium (D-D) fast neutron generator
Soubelet, Benoit; Adams, R.; Prasser, H.-M. (2021)
Radiation Physics and Chemistry
Neutron cross-sections have an energy dependence which is uniquely varying according to isotopic composition. By measuring the local neutron beam attenuation of an object as a function of energy, this can be related to its elemental composition. Therefore material decomposition measurements using a deuterium-deuterium (D-D) compact fast neutron generator in an energy-selective fashion have been carried out. Previous work described determining setup-specific effective reference cross-section data for homogeneous samples. This work presents first tests of this non-destructive analysis principle in a 2D computed tomography (CT) setup using heterogeneous samples, based on the aforementioned reference cross-sections. Measurement data were collected at five angles around the neutron generator corresponding to five effective energies. At each angle a CT reconstruction was performed to obtain energy-specific CT images. These CT images were use to calculate an elemental decomposition of the samples of interest. Good agreement between theory and experiment was found for most of the samples, while the more challenging cases highlighted limitations of the technique. These first tomographic measurements are discussed along with an outlook for further developments of the technique. © 2020 The Author(s)
Structure-property correlations of ion-containing polymers for fuel cell applications
Sproll, Veronique; Nagy, Gergely; Gasser, Urs; et al. (2016)
Radiation Physics and Chemistry
A new process simulator for the optimization of electron beam crosslinking processes of polymers isolations in electrical cables
Mangiacapra, Luigi; Ciappa, Mauro; Stangoni, Maria; et al. (2011)
Radiation Physics and Chemistry
Effect of glycidyl methacrylate (GMA) incorporation on water uptake and conductivity of proton exchange membranes
Sproll, Véronique; Schmidt, Thomas; Gubler, Lorenz (2018)
Radiation Physics and Chemistry
Foundation of an analytical proton beamlet model for inclusion in a general proton dose calculation system
Ulmer, W.; Schaffner, B. (2011)
Radiation Physics and Chemistry
Mask-assisted electron radiation grafting for localized through-volume modification of porous substrates: Influence of electron energy on spatial resolution
Forner-Cuenca, Antoni; Manzi-Orezzoli, Victoria; Kristiansen, Per M.; et al. (2017)
Radiation Physics and Chemistry
Feasibility study of using a compact deuterium-deuterium (D-D) neutron generator for energy-selective transmission tomography
Soubelet, Benoit; Adams, Robert; Kromer, Heiko; et al. (2019)
Radiation Physics and Chemistry
High resolution two-dimensional dose mapping of electron beam processed polymers
Ciappa, Mauro; Mangiacapra, Luigi; Stangoni, M.; et al. (2011)
Radiation Physics and Chemistry

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