Excitation functions for the production of radionuclides by neutron-induced reactions on C, O, Mg, Al, Si, Fe, Co, Ni, Cu, Ag, Te, Pb, and U up to 180MeV

Michel, R.; Hansmann, Douglas R.; Neumann, S.; Glasser, W.; Schuhmacher, H.; Dangendorf, V.; Nolte, R.; Herpers, U.; Smirnov, Alexander; Рыжов, И. В.; Prokofiev, Alexander V.; Malmborg, Petter; Kollár, D.; Meulders, Jean‐Pierre

doi:10.1016/j.nimb.2014.11.006

Cited by 14 publications

(22 citation statements)

References 36 publications

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“…2). Similar behavior of the cross-sections for the (n,p+α) reaction was observed also in the case of nat Cr and nat Fe [2] and reported by other experimenters [10]. Model calculations with the TALYS-1.8 code [9] were also performed and show similar underestimation of the experimental cross-sections.…”

Section: Resultssupporting

confidence: 83%

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^natCu and ^natV cross-sections measured by quasi-monoenergetic neutrons from p+⁷Li reaction in the energy range of 18–34 MeV

et al. 2017

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Abstract. nat Cu and nat V samples were irradiated several times with quasi-monoenergetic neutrons from the p+ 7 Li reaction in the energy range of 18-35 MeV. The activities of the samples were measured with the HPGe detector and the reaction rates were calculated. Time-of-flight measurements of the produced neutron spectra and the measurements of the residual 7 Be activity in the Li target were performed to improve the knowledge of the neutron spectra. The cross-sections were extracted using the SAND-II procedure with the reference cross-sections from the EAF-2010 database. The uncertainties of the final results are discussed.

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Section: Resultssupporting

confidence: 83%

“…These procedures are based on residual 7 Be activity [10]. The main reaction channel is (n,p+α), the contribution of other reactions is negligible.…”

Section: Neutron Spectramentioning

confidence: 99%

^natCu and ^natV cross-sections measured by quasi-monoenergetic neutrons from p+⁷Li reaction in the energy range of 18–34 MeV

et al. 2017

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“…Other Ge-based rare event searches have identified additional isotopes such as 49 V, 54 Mn, 56 Co, 57 Co, 58 Co, 60 Co, 63 Ni, and 67 Ga [30,32,34,35,39,[50][51][52]. Thus, the fit includes not only those isotopes for which there is clear evidence in the CDMSlite data, but also three additional isotopes: 49 V, 54 Mn, and 57 Co. All three have half lives within the relevant range.…”

Section: Likelihood Fit Resultsmentioning

confidence: 99%

“…in most of their respective domains of applicability for reactions similar to those considered above. TALYS has been benchmarked to the measured production of residual nuclei from proton irradiation at various energies, as well as from neutron irradiation up to 180 MeV in Si, Co, Fe, Ni, and Cu targets [57]. The latter study shows disagreements for the production of light residual nuclei that require multiple emissions in their production, such as a factor of ∼5 overprediction for 48 Cr production from an iron target.…”

Section: Excitation Functions From Neutron Spallationmentioning

confidence: 99%

Production rate measurement of Tritium and other cosmogenic isotopes in Germanium with CDMSlite

Agnese

Aralis

Aramaki

et al. 2019

Astroparticle Physics

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Future direct searches for low-mass dark matter particles with germanium detectors, such as SuperCDMS SNOLAB, are expected to be limited by backgrounds from radioactive isotopes activated by cosmogenic radiation inside the germanium. There are limited experimental data available to constrain production rates and a large spread of theoretical predictions. We examine the calculation of expected production rates, and analyze data from the second run of the CDMS low ionization threshold experiment (CDMSlite) to estimate the rates for several isotopes. We model the measured CDMSlite spectrum and fit for contributions from tritium and other isotopes. Using the knowledge of the detector history, these results are converted to cosmogenic production rates at sea level. The production rates in atoms/(kg•day) are 74 ± 9 for 3 H, 1.5 ± 0.7 for 55 Fe, 17 ± 5 for 65 Zn, and 30 ± 18 for 68 Ge.

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“…1 presents the γ-spectrum from the irradiated 232 Th sample at 50 MeV bremsstrahlung photons, having measurement time of 30 h. The γ-peak areas are used to calculate the cross sections of reaction products. A considerable amount of data has been obtained for nucleon-induced reactions on different targets by using induced-activity method [12,15]. The main goal of these studies was to provide a database for model calculations of the production of cosmogenic nuclides in extraterrestrial matter by solar and galactic cosmic ray protons [12,15].…”

Section: Induced-activity Methods Of Data Analysismentioning

confidence: 99%

Fission and spallation data evaluation using induced-activity method

Karapetyan

2015

Eur. Phys. J. Plus

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The induced-activity investigations in off-line analysis performed in different experiments, concerning pre-actinide and actinide nuclei, are here presented and discussed. Generalized expressions for the determination of independent yields/cross sections of radioactive nuclei, formed in the targets, are derived and analysed. The fragment mass distribution from 238 U, 232 Th and 181 Ta photofission at the bremsstrahlung end-point energies of 50 and 3500 MeV, and from 241 Am, 238 U and 237 Np fission induced by 660-MeV protons, are scrutinized from the point of view of the multimodal fission approach. The results of these studies are hence compared with theoretical model calculations using the CRISP code. A multimodal fission option has been added to this code, which allows to account the contribution of symmetric and asymmetric (superasymmetric) fission to the total fission yield. Moreover, this work contains the general results obtained in the analysis of the isomer ratios of fission fragments from 238 U and 232 Th targets at the bremsstrahlung end-point energies of 50 and 3500 MeV. Moreover, the values of the average angular momenta of primary fragments are estimated by using the statistical model calculation. We subsequently discuss the complex particle-induced reaction, such as heavy-ions and deuterons, by using the thick-target thick-catcher technique and the two-step vector model framework as well. This is accomplished in order to present the investigation of the main processes (fission, spallation and (multi)fragmentation) in intermediate-and high-energy ranges of the incident particle. The set of experimental data, presented in this work, encompasses not merely the data as total production cross sections. Notwithstanding, it further covers other data, as individual yields/cross sections, charge, mass and spin distributions of the reaction fragments, as well as kinematic features. These sources of experimental data can serve as a consistent set of benchmarking data, still necessary for the study of heavy nuclei. Besides, it is also useful for technological applications, from astrophysics and environmental sciences to accelerator technology and accelerator-based nuclear waste transmutation and energy amplification as well. PACS numbers: 25.40.Sc, 25.85.-w * Electronic address: gayane@if.usp.br arXiv:1509.00226v1 [nucl-ex] 1 Sep 2015

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Excitation functions for the production of radionuclides by neutron-induced reactions on C, O, Mg, Al, Si, Fe, Co, Ni, Cu, Ag, Te, Pb, and U up to 180MeV

Cited by 14 publications

References 36 publications

^natCu and ^natV cross-sections measured by quasi-monoenergetic neutrons from p+⁷Li reaction in the energy range of 18–34 MeV

^natCu and ^natV cross-sections measured by quasi-monoenergetic neutrons from p+⁷Li reaction in the energy range of 18–34 MeV

Production rate measurement of Tritium and other cosmogenic isotopes in Germanium with CDMSlite

Fission and spallation data evaluation using induced-activity method

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Excitation functions for the production of radionuclides by neutron-induced reactions on C, O, Mg, Al, Si, Fe, Co, Ni, Cu, Ag, Te, Pb, and U up to 180MeV

Cited by 14 publications

References 36 publications

natCu and natV cross-sections measured by quasi-monoenergetic neutrons from p+7Li reaction in the energy range of 18–34 MeV

natCu and natV cross-sections measured by quasi-monoenergetic neutrons from p+7Li reaction in the energy range of 18–34 MeV

Production rate measurement of Tritium and other cosmogenic isotopes in Germanium with CDMSlite

Fission and spallation data evaluation using induced-activity method

Contact Info

Product

Resources

About

^natCu and ^natV cross-sections measured by quasi-monoenergetic neutrons from p+⁷Li reaction in the energy range of 18–34 MeV

^natCu and ^natV cross-sections measured by quasi-monoenergetic neutrons from p+⁷Li reaction in the energy range of 18–34 MeV