Electron accelerator-based production of molybdenum-99: Bremsstrahlung and photoneutron generation from molybdenum  vs . tungsten

Tsechanski, A.; Bielajew, Alex F.; Archambault, John Paul; Mainegra-Hing, Ernesto

doi:10.1016/j.nimb.2015.10.057

Cited by 27 publications

(7 citation statements)

References 4 publications

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“…The optimum thickness of the Tungsten converter in this study was1.80 mm. The result of this study is greater than the results of other studies, namely Tsechanski et al by 1.64 mm (9.76% larger)[16], Berger et al by 1.36 mm (32.35% larger)…”

contrasting

confidence: 73%

“…[17], Alhagaish and Sakharov by 1.61 mm (11.80% larger) [4]. Then the maximum conversion efficiency of the Tungsten converter in this study was 21.3%, which means it is smaller than the results of Tsechanski et al's study by 23.1% (7.79% smaller) [16], Alhagaish and Sakharov by 23.2 % (8.19% smaller) [4], but greater than the result of the study of Berger et al, namely 19.0% (12.11% larger) [17].…”

contrasting

confidence: 72%

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Determination of Optimum Materials Thickness for Converting E-Beam Energy into Bremsstrahlung X-Rays on a 10 MeV High Energy Electron Accelerator Using MCNP

Kasmudin

Rezon

Satmoko

2022

J. Phys.: Conf. Ser.

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The e-beam produced by the high-energy electron accelerator has a relatively small penetrating power. To increase the penetrating power, a converter must convert the e-beam energy into bremsstrahlung x-rays. This research aims to determine the optimum thickness of tantalum, tungsten, and lead as a converter of e-beam energy into bremsstrahlung x-rays at a 10 MeV high-energy electron accelerator. The optimum thickness of tantalum, tungsten, and lead is determined using simulation with MCNPX software. The electron source modeling with an energy of 10 MeV is made in the form of a flat plane with a size of 120 cm by 10 cm at a distance of 1 mm from the converter. The converter has dimensions of 160 cm by 24 cm and its thickness varies from 1 - 7.5 mm. Then two planar detectors are placed at a distance of 2 cm in front and behind the converter. The simulation results show that the optimum thickness for tantalum, tungsten, and lead converter is 2.0 mm, 1.8 mm, and 2.8 mm respectively. The maximum forward scattered bremsstrahlung x-rays energy are 2.1137 MeV, 2.1287 MeV, and 2.1850 MeV, respectively. And the maximum conversion efficiency is 21.137%, 21.287%, and 21.850%, respectively. These results can be used as a reference in the design of the converter for the 10 MeV high-energy electron accelerator.

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confidence: 73%

contrasting

confidence: 72%

Determination of Optimum Materials Thickness for Converting E-Beam Energy into Bremsstrahlung X-Rays on a 10 MeV High Energy Electron Accelerator Using MCNP

Kasmudin

Rezon

Satmoko

2022

J. Phys.: Conf. Ser.

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“…A similar process was described by Tsechanski et al when employing a one-stage approach for the photonuclear production of 99 Mo using natural Mo targets. Under this scenario, 99 Mo would be generated from two different nuclear transformation pathways: (1) the primary photonuclear reaction on 100 Mo, and (2) successive neutron-capture on 98 Mo from secondary neutrons generated as described above 95 .…”

Section: Productionmentioning

confidence: 99%

Discovery, nuclear properties, synthesis and applications of technetium-101

Johnstone¹,

Mayordomo

Mausolf³

2022

Commun Chem

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Technetium-101 (101Tc) has been poorly studied in comparison with other Tc isotopes, although it was first identified over ~80 years ago shortly after the discovery of the element Tc itself. Its workable half-life and array of production modes, i.e., light/heavy particle reactions, fission, fusion-evaporation, etc., allow it to be produced and isolated using an equally diverse selection of chemical separation pathways. The inherent nuclear properties of 101Tc make it important for research and applications related to radioanalytical tracer studies, as a fission signature, fusion materials, fission reactor fuels, and potentially as a radioisotope for nuclear medicine. In this review, an aggregation of the known literature concerning the chemical, nuclear, and physical properties of 101Tc and some its applications are presented. This work aims at providing an up-to-date and first-of-its-kind overview of 101Tc that could be of importance for further development of the fundamental and applied nuclear and radiochemistry of 101Tc.

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“…The availability of the Monte Carlo MCNP-X and MCNP-6 codes used as a simulation tool [15][16][17] makes it possible to pretend an electron beam in thick targets X. The optimization of the conception (design) of the target bound directly to the production and the generation of the yield on Bremsstrahlung of photon neutron [18][19][20][21]. Figure 1, show the geometry used in this work.…”

Section: Theorymentioning

confidence: 99%

System and process of thermal neutron flux producing by means of an accelerator base electron of 18 MeV

Didi

Dadouch

Bekkour

et al. 2018

Eurasian j. phys. funct. mater.

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Neutrons are produced in accelerators by irradiating heavy targets with an electron or proton beam. Produced neutrons are of high energy. The purpose of our work is optimization the neutron flux by MCNP-6 code for production the thermal neutron flux using a moderator and for convertation the fast neutron flux into a thermal neutron flux. In this article, we are interested in a thermal neutron flux due it is useful for method of neutron activation analysis. In conventional sources, the moderator is usually a large volume of water or paraffin around the source. Initially, fast neutrons have energy above 1 MeV, and then slow down to energies below 1 eV.

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Electron accelerator-based production of molybdenum-99: Bremsstrahlung and photoneutron generation from molybdenum vs . tungsten

Cited by 27 publications

References 4 publications

Determination of Optimum Materials Thickness for Converting E-Beam Energy into Bremsstrahlung X-Rays on a 10 MeV High Energy Electron Accelerator Using MCNP

Determination of Optimum Materials Thickness for Converting E-Beam Energy into Bremsstrahlung X-Rays on a 10 MeV High Energy Electron Accelerator Using MCNP

Discovery, nuclear properties, synthesis and applications of technetium-101

System and process of thermal neutron flux producing by means of an accelerator base electron of 18 MeV

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