Monte Carlo simulation analysis of integral data measured in the SCK-CEN/ENEA experimental campaign on the TAPIRO fast reactor. Experimental and calculated data comparison

Burgio, N.; Cretara, L.; Frullini, M.; Gandini, A.; Peluso, V.; Santagata, A.

doi:10.1016/j.nucengdes.2014.03.040

Cited by 7 publications

(19 citation statements)

References 4 publications

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“…Both simulations were obtained by generating neutron flux expected for this location from Ref. [6] and normalized in absolute value to the integrated flux of TAPIRO fission chamber. However, this comparison revealed that the measured flux was a factor of two lower than expected.…”

Section: Resultsmentioning

confidence: 99%

“…11, demonstrated a wrong ratio of fast and thermal neutrons. In the total deposited energy distribution [6] (blue) and older evaluations from Ref. [18] (green) and Ref.…”

Section: Resultsmentioning

confidence: 99%

“…For the absolute normalization of the measurement the TAPIRO power monitoring system combined with the powerto-flux conversion from Refs. [14], [6] were used. The correlation between sandwich spectrometer event rate and fission chamber current, shown in Fig.…”

Section: B Data Analysismentioning

confidence: 99%

“…Thus in the fast neutron flux a more rapid drift was observed. The absolute amount of 6 Li deposited by evaporation on the diamond's Cr contacts was determined in a dedicated experiment [15] with 20% accuracy. This value was used in the simulations to determine the correct absolute efficiency of the spectrometer.…”

Section: Slow Fastmentioning

confidence: 99%

“…The neutron flux of the TAPIRO fast reactor in the two irradiation positions taken from Ref. [6] was generated isotropically on the spherical surface around the spectrometer of area about 1 cm 2 . The events with the energy deposited in both crystals of the sandwich sensitive volume above the threshold were selected.…”

Section: Slow Fastmentioning

confidence: 99%

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Test of a prototype neutron spectrometer based on diamond detectors in a fast reactor

Osipenko

Pompili

Ripani

et al. 2015

2015 4th International Conference on Advancements in Nuclear Instrumentation Measurement Methods and Their Applications (ANIMMA

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A prototype of neutron spectrometer based on diamond detectors has been developed. This prototype consists of a 6 Li neutron converter sandwiched between two CVD diamond crystals. The radiation hardness of the diamond crystals makes it suitable for applications in low power research reactors, while a low sensitivity to gamma rays and low leakage current of the detector permit to reach good energy resolution. A fast coincidence between two crystals is used to reject background. The detector was read out using two different electronic chains connected to it by a few meters of cable. The first chain was based on conventional charge-sensitive amplifiers, the other used a custom fast charge amplifier developed for this purpose. The prototype has been tested at various neutron sources and showed its practicability. In particular, the detector was calibrated in a TRIGA thermal reactor (LENA laboratory, University of Pavia) with neutron fluxes of 10 8 n/cm 2 s and at the 3 MeV D-D monochromatic neutron source named FNG (ENEA, Rome) with neutron fluxes of 10 6 n/cm 2 s. The neutron spectrum measurement was performed at the TAPIRO fast research reactor (ENEA, Casaccia) with fluxes of 10 9 n/cm 2 s. The obtained spectra were compared to Monte Carlo simulations, modeling detector response with MCNP and Geant4.Index Terms-neutron spectrometer, fast reactor, diamond detector

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Section: Resultsmentioning

confidence: 99%

“…11, demonstrated a wrong ratio of fast and thermal neutrons. In the total deposited energy distribution [6] (blue) and older evaluations from Ref. [18] (green) and Ref.…”

Section: Resultsmentioning

confidence: 99%

Section: B Data Analysismentioning

confidence: 99%

Section: Slow Fastmentioning

confidence: 99%

Section: Slow Fastmentioning

confidence: 99%

See 3 more Smart Citations

Test of a prototype neutron spectrometer based on diamond detectors in a fast reactor

Osipenko

Pompili

Ripani

et al. 2015

2015 4th International Conference on Advancements in Nuclear Instrumentation Measurement Methods and Their Applications (ANIMMA

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Modelling the interaction of the Astro Bio Cube Sat with the Van Allen’s Belt radiative field using Monte Carlo transport codes

Burgio

Cretara

Corcione

et al. 2022

Radiat Detect Technol Methods

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Purpose The AstroBio Cube Satellite (ABCS) will deploy within the inner Van Allen belt on the Vega C Maiden Flight launch opportunity of the European Space Agency. At this altitude, ABCS will experience radiation doses orders of magnitude greater than in low earth orbit, where CubeSats usually operate. The paper aims to estimate the irradiation effect on the ABCS payload in the orbital condition, their possible mitigation designing shielding solutions and performs a preliminary representativity simulation study on the ABCS irradiation with fission neutron at the TAPIRO (TAratura Pila Rapida Potenza 0) nuclear research reactor facility at ENEA. Methods We quantify the contributions of geomagnetically trapped particles (electron and proton), Galactic Cosmic Rays (GCR ions), Solar energetic particle within the ABCS orbit using the ESA’s SPace ENVironment information system. FLUKA (Fluktuierende Kaskade—Fluctuating Cascade) code models the ABCS interaction with the orbital source. Results We found a shielding solution of the weight of 300 g constituted by subsequent layers of tungsten, resins, and aluminium that decreases on average the 20% overall dose rate relative to the shielding offered by the only satellite’s structure. Finally, simulations of neutron irradiation of the whole ABCS structure within the TAPIRO’s thermal column cavity show that a relatively short irradiation time is requested to reach the same level of 1 MeV neutron Silicon equivalent damage of the orbital source. Conclusions The finding deserves the planning of a future experimental approach to confirm the TAPIRO’s performance and establish an irradiation protocol for testing aerospatial electronic components.

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The Monte Carlo GPT methodology for the analysis of ratios of functionals bilinear with the real and adjoint neutron fluxes

Burgio

Cretara

D’Onorio

et al. 2017

Annals of Nuclear Energy

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Monte Carlo simulation analysis of integral data measured in the SCK-CEN/ENEA experimental campaign on the TAPIRO fast reactor. Experimental and calculated data comparison

Cited by 7 publications

References 4 publications

Test of a prototype neutron spectrometer based on diamond detectors in a fast reactor

Test of a prototype neutron spectrometer based on diamond detectors in a fast reactor

Modelling the interaction of the Astro Bio Cube Sat with the Van Allen’s Belt radiative field using Monte Carlo transport codes

The Monte Carlo GPT methodology for the analysis of ratios of functionals bilinear with the real and adjoint neutron fluxes

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