Evaluation of 4He production cross-section for tantalum, tungsten and gold irradiated with neutrons and protons at the energies up to 1GeV

Broeders, C.H.M.; Konobeyev, A.Yu.

doi:10.1016/j.nimb.2005.02.029

Cited by 13 publications

(21 citation statements)

References 74 publications

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“…It can be noticed, as already realized by the authors of Ref. [11], that the cascade contribution to the total cross-section (dashed curve) is very important in the case of tritium and 3 He contrary to the case of 4 He. A similar agreement, not shown here, is obtained when comparing the model with p+Au data from Ref.…”

Section: Cluster Emission In Incl4mentioning

confidence: 54%

“…The dashed curve shows the contribution coming from the coalescence process in INCL4.5. It can be seen that the high energy tail is very well reproduced by this process for all species of light charged particles, although a slight overprediction of 3 He and 4 He at the highest particle energies can be observed. The angular dependence is also reasonably reproduced.…”

Section: Cluster Emission In Incl4mentioning

confidence: 84%

“…They extracted the relative contribution of this high-energy component, called pre-equilibrium in their paper, to the total yields of the different light composite particles, as a function of the target charge, at 1.2 GeV. This showed that, while 4 He is produced predominantly by evaporation, for the other light composite particles the so-called pre-equilibrium contribution is far from being negligible, reaching even 60% for 3 He on high-Z targets. The level of this contribution in the production cross-sections of tritium and 3 He shows how important it is to be able to account for the high-energy tail with the models.…”

Section: Cluster Emission In Incl4mentioning

confidence: 99%

“…Up to now, light composite particle production was poorly predicted by nuclear models (generally a combination of an intranuclear cascade model followed by a de-excitation model) implemented into high-energy transport codes [1][2][3][4]. In Ref.…”

Section: Introductionmentioning

confidence: 99%

“…In Ref. [4], a systematic comparison of many different models with alpha production cross-section from tantalum, tungsten and gold was performed, which also pointed out large discrepancies between the calculation results and the experimental data.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Improved modelling of helium and tritium production for spallation targets

Leray

Boudard

David

et al. 2010

Nuclear Instruments and Methods in Physics Research Section B:

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a b s t r a c tReliable predictions of light charged particle production in spallation reactions are important to correctly assess gas production in spallation targets. In particular, the helium production yield is important for assessing damage in the window separating the accelerator vacuum from a spallation target, and tritium is a major contributor to the target radioactivity. Up to now, the models available in the MCNPX transport code, including the widely used default option Bertini-Dresner and the INCL4.2-ABLA combination of models, were not able to correctly predict light charged particle yields. The work done recently on both the intranuclear cascade model INCL4, in which cluster emission through a coalescence process has been introduced, and on the de-excitation model ABLA allows correcting these deficiencies. This paper shows that the coalescence emission plays an important role in the tritium and 3 He production and that the combination of the newly developed versions of the codes, INCL4.5-ABLA07, now lead to good predictions of both helium and tritium cross-sections over a wide incident energy range. Comparisons with other available models are also presented.

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Section: Cluster Emission In Incl4mentioning

confidence: 54%

Section: Cluster Emission In Incl4mentioning

confidence: 84%

Section: Cluster Emission In Incl4mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Improved modelling of helium and tritium production for spallation targets

Leray

Boudard

David

et al. 2010

Nuclear Instruments and Methods in Physics Research Section B:

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Measurement of excitation functions of natTa(p,x) reactions up to 44.2 MeV

Shahid

Kim

et al. 2018

J Radioanal Nucl Chem

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A benchmark study on uncertainty of ALICE ASH 1.0, TALYS 1.0 and MCNPX 2.6 codes to estimate production yield of accelerator-based radioisotopes

et al. 2013

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Tenreiro, C (Tenreiro, Claudio); Gholamzadeh, Z (Gholamzadeh, Zohreh). Talca Univ, Dept Phys, Talca, Chile.Radioisotopes find very important applications in various sectors of economic significance and their production is an important activity of many national programmes. Some deterministic codes such as ALICE ASH 1.0 and TALYS 1.0 are extensively used to calculate the yield of a radioisotope via numerical integral over the calculated cross-sections. MCNPX 2.6 stochastic code is more interesting among the other Monte Carlo-based computational codes for accessibility of different intranuclear cascade physical models to calculate the yield using experiment-based cross-sections. A benchmark study has been proposed to determine the codes' uncertainty in such calculations. Cd-109, Y-86 and Sr-85 production yields by proton irradiation of silver, rubidium chloride and strontium carbonate targets are studied. Cd-109, Y-86 and Sr-85 cross-sections are calculated using ALICE ASH 1.0 and TALYS 1.0 codes. The evaluated yields are compared with the experimental yields. The targets are modelled using MCNPX 2.6 code. The production yields are calculated using the available physical models of the code. The study shows acceptable relative discrepancies between theoretical and experimental results. Minimum relative discrepancy between experimental and theoretical yields is achievable using ISABEL intranuclear model in most of the targets simulated by MCNPX 2.6. The stochastic code utilization can be suggested for calculating Cd-109, Y-86 and Sr-85 production yields. It results in more valid data than TALYS 1.0 and ALICE ASH 1.0 in noticeably less average relative discrepancies

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Evaluation of 4He production cross-section for tantalum, tungsten and gold irradiated with neutrons and protons at the energies up to 1GeV

Cited by 13 publications

References 74 publications

Improved modelling of helium and tritium production for spallation targets

Improved modelling of helium and tritium production for spallation targets

Measurement of excitation functions of natTa(p,x) reactions up to 44.2 MeV

A benchmark study on uncertainty of ALICE ASH 1.0, TALYS 1.0 and MCNPX 2.6 codes to estimate production yield of accelerator-based radioisotopes

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