Neutronics design and supporting experimental activities in the EU

Batistoni, P.; Fischer, U.; Angelone, M.; Bém, P.; Kodeli, I.; Pereslavtsev, P.; Petrizzi, L.; Pillon, M.; Seidel, K.; Simakov, S.P.; Villari, R.

doi:10.1016/j.fusengdes.2005.08.060

Cited by 10 publications

(14 citation statements)

References 37 publications

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“…In the scope of the fusion for energy (F4E) project of the European Commission we proposed to investigate, as an alternative, the potential use of manganese as a detector for monitoring tritium production in fusion machines. Important similarities between the sensitivity profiles of the tritium production reaction in 6 Li and those of the 55 Mn(n,γ) 56 Mn reaction in the TBMs were observed [1][2][3][4], suggesting that the latter reaction could be used to monitor tritium production, at least in the short term (the half-life of 56 Mn being 2.579 h). However, validation and, possibly, improvements of the 55 Mn cross-sections are needed in order to meet the required accuracy in some energy ranges.…”

Section: Introductionmentioning

confidence: 80%

“…The target accuracy in determination of the tritium production rate that is relevant for ITER is 5% (1 -σ). Figure 1 displays reaction cross-sections for the 6 Li(n,t) 4 He, 55 Mn(n,γ) 56 Mn and 197 Au(n,γ) 198 Au reactions. Figure 1 also suggests that the epi-thermal contribution to the 55 Mn(n,γ) 56 Mn reaction has to be excluded, and this can be done by comparing the measurements with/without Cd.…”

Section: Introductionmentioning

confidence: 99%

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Activation of Mn, Li₂O and LiF in the JSI TRIGA reactor to study potential tritium production monitors for fusion applications

et al. 2019

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Two series of measurements were performed in the JSI TRIGA research reactor in 2014 and 2017 to validate the 55Mn(n,γ)56Mn cross-sections and experimentally investigate the relationship between the 55Mn(n,γ)56Mn reaction and the rate of tritium production through the 6Li(n,t)4He reaction. Indeed, previously observed similarities between the sensitivity profiles of the neutron reaction of tritium production on lithium, 6Li(n,t)4He, and those of the 55Mn(n,γ)56Mn reaction in tritium breeder modules indicated that the latter reaction could be used as an effective monitor of tritium production, at least for short-term monitoring (the half-life of 56Mn being 2.579 h). However, experimental verification, improvements and validation of the 55Mn(n,γ)56Mn cross-sections are needed in order to meet the required accuracy. Foils of certified reference material Al–1%Mn, as well as LiF thermoluminescent detectors and Li2O samples were irradiated, both bare and under cadmium, to study the potential use of the 55Mn(n,γ)56Mn reaction for monitoring tritium production in fusion devices. Additionally, Al–0.1%Au was also irradiated for comparison, the 197Au(n,γ)198Au reaction cross-section being a standard. In order to obtain complementary information for data validation purposes, the irradiations were performed in positions within the JSI TRIGA reactor with different neutron spectra, i.e. in the central channel, the pneumatic tube and the F19 position, both in the outer ‘F’ ring of the reactor core and in the IC-40 irradiation channel located in the graphite reflector surrounding the reactor core. Bare and cadmium-covered irradiations were needed to subtract the contribution of epithermal neutrons to the 55Mn(n,γ)56Mn reaction. Calculations of the reaction rates were performed using the Monte Carlo code MCNP6.1 with a detailed model of the JSI TRIGA reactor, with the samples, the irradiation capsules and covers being modelled explicitly. The uncertainties involved in the measurements and the calculations were carefully evaluated. The principal objective was to study the energy response and correlations between the 55Mn(n,γ)56Mn reaction in irradiated Al–1%Mn and the 6Li(n,t)4He reaction in irradiated LiF and Li2O. Good consistency between the measured and calculated 55Mn(n,γ)56Mn and 197Au(n,γ)198Au reaction rates, in most cases within the uncertainty bars, was observed.

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Section: Introductionmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Activation of Mn, Li₂O and LiF in the JSI TRIGA reactor to study potential tritium production monitors for fusion applications

et al. 2019

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“…The EFF project carries out integral experiments and develops calculational methods for fusion systems [46]. Test Blanket Modules (TBMs) are required for ITER, and they need to be designed in the near term.…”

Section: Benchmarkingmentioning

confidence: 99%

The JEFF evaluated nuclear data project

Koning

Avrigeanu

et al. 2007

Nd2007

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Abstract. The status of the Joint Evaluated Fission and Fusion file (JEFF) is described. JEFF-3.1 comprises a significant update of actinide evaluations, materials evaluations that have emerged from various European nuclear data projects, the activation library JEFF-3.1/A, the decay data and fission yield sub-libraries, and fusion-related data files from the EFF project. The revisions were motivated by the availability of new measurements, modelling capabilities and trends from integral experiments. Validations have been performed, mainly for criticality, reactivity temperature coefficients, fuel inventory and shielding of thermal and fast systems. Compared with earlier releases, JEFF-3.1 provides improved performance with respect to a variety of scientific and industrial applications. Following on from the public release of JEFF-3.1, the French nuclear power industry has selected this suite of nuclear applications libraries for inclusion in their production codes.

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“…5) for the mock-up of the ITER OAM-HCDA [11]. The main purpose of the [11]. experiment was to validate the numerical codes and nuclear data used for predicting the tritium production rate in the TBM-HCPB.…”

Section: Development Of Be For Iter First Wall Components and For Demmentioning

confidence: 99%

Overview of recent Russian materials and technologies R&D activities related to ITER and DEMO constructions

Shikov

Beliakov²

2007

Journal of Nuclear Materials

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Neutronics design and supporting experimental activities in the EU

Cited by 10 publications

References 37 publications

Activation of Mn, Li₂O and LiF in the JSI TRIGA reactor to study potential tritium production monitors for fusion applications

Activation of Mn, Li₂O and LiF in the JSI TRIGA reactor to study potential tritium production monitors for fusion applications

The JEFF evaluated nuclear data project

Overview of recent Russian materials and technologies R&D activities related to ITER and DEMO constructions

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Neutronics design and supporting experimental activities in the EU

Cited by 10 publications

References 37 publications

Activation of Mn, Li2O and LiF in the JSI TRIGA reactor to study potential tritium production monitors for fusion applications

Activation of Mn, Li2O and LiF in the JSI TRIGA reactor to study potential tritium production monitors for fusion applications

The JEFF evaluated nuclear data project

Overview of recent Russian materials and technologies R&D activities related to ITER and DEMO constructions

Contact Info

Product

Resources

About

Activation of Mn, Li₂O and LiF in the JSI TRIGA reactor to study potential tritium production monitors for fusion applications

Activation of Mn, Li₂O and LiF in the JSI TRIGA reactor to study potential tritium production monitors for fusion applications