RIKEN accelerator-driven compact neutron systems, RANS project and their capabilities

Otake, Yoshie

doi:10.1080/10448632.2020.1819134

Cited by 6 publications

(2 citation statements)

References 10 publications

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“…The goal of this research is to investigate the feasibility of DD neutron generator as the source for some nuclear technique experiments such as neutron activation analysis and radiography. These two categories were selected due to their low flux requirement, unlike for elastic or even inelastic scatterings which need bigger flux [12]. The result hopefully could be implemented for the development of compact laboratories that can be utilized for industrial applications and/or educational purposes in universities/research centers.…”

Section: Introduction 1*mentioning

confidence: 99%

Design of Neutron Activation and Radiography Facilities Based on DD Generator

Prastowo

2023

ijp

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Design and simulation of radiation facility using deuterium-deuterium (DD) neutron generator for neutron activation analysis (NAA) and radiography have been conducted by PHITS 3.30. A cylindrical DD neutron tube (E = 2.45 MeV isotropic, 5 x 109/s) flux is surrounded by high-density polyethylene blocks which serve as the moderator. Within the moderator there are several cavities to perform neutron activation experiments. A 90 cm long beam tube is installed either radially or tangentially for radiography purposes. Monte Carlo simulations then calculate the thermal flux inside the cavities and on the end of the beam tube. The biggest thermal flux obtained in the activation chambers is about 1.95 x 109/(cm2.s) in the cavity closest to the source center. Radial beam tube delivers thermal flux of 7.86 x 103/(cm2.s), while tangential beam tube transports 1.86 x 103/(cm2.s). Although the thermal flux in the radial beam tube is higher, the fast neutron flux is also higher, about 9.60 x 103/(cm2.s). Tangential beam tube configuration can decrease fast neutron flux to only 2.00 x 102/(cm2.s). This result can serve as a preliminary study for the commisioning of radiation facilities based on compact, low-power neutron source.

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Section: Introduction 1*mentioning

confidence: 99%

Design of Neutron Activation and Radiography Facilities Based on DD Generator

Prastowo

2023

ijp

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“…High current Compact Accelerator-driven Neutron Sources (HiCANS) have risen in recent years as a possible answer to the closure of various research reactors in Europe and the drop in beam time availability for the neutron user's community. This interest was motivated by the previous experience in compact accelerator-driven neutron sources [1,2]. Several projects in numerous laboratories around Europe [3][4][5][6] are currently at different stages of their development and are merged within the European Low Energy accelerator-based Neutron facilities Association (ELENA) [7].…”

Section: Introductionmentioning

confidence: 99%

The HERMES reflectometer at the JULIC Neutron Platform

Paulin,

Pechenizkiy,

Zakalek

et al. 2023

EPJ Web Conf.

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HERMES is a time-of-flight reflectometer that operated at the Orphée reactor until 2019. In 2022, HERMES was installed at the JULIC (Jülich Light Ion Cyclotron) Neutron Platform as part of a collaboration between the Laboratoire Léon Brillouin and the Jülich Centre for Neutron Science. The main goal of the current setup is to probe the viability of neutron instrumentation at a High Current Compact Accelerator-driven Neutron Source (HiCANS). As the flux at the JULIC neutron platform is several orders of magnitude lower than the original Orphée flux or the expected flux for a HiCANS, our current objective is to perform reflectivity experiments with supermirrors as a proof of concept. Nevertheless, Monte-Carlo simulations showed that the HERMES instrument’s performance at a HiCANS such as HBS or ICONE could match that of reflectometry instruments operating at research reactors or spallation sources. An experiment with a supermirror carried out in December 2022 allowed us to preliminary prove the feasibility of this kind of experiments at an accelerator-driven neutron source.

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Development of neutron reflectometry for a HiCANS: The HERMES instrument at the JULIC Neutron Platform

Paulin,

Pechenizkiy,

Zakalek

et al. 2024

EPJ Web Conf.

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High Current Compact Accelerator-driven Neutron Sources (HiCANS) have recently emerged as a possible solution to the drop in neutron provision in Europe due to the closure of several research reactors. Within this new trend, the Laboratoire Léon Brillouin (LLB) is currently assessing the performance of neutron techniques around this novel type of source. HERMES is a time-of-flight horizontal reflectometer that was operated by the LLB at the ORPHEE reactor until 2019 and was dedicated to soft matter studies. Through a collaboration with the Jülich Centre for Neutron Science, HERMES was installed in 2022 at the JULIC Neutron Platform (JNP) at the Forschungszentrum Jülich. This platform is able to deliver neutron pulses in the 100 μs - 2 s range and is very well suited to evaluate the feasibility of reflectivity experiments at a HiCANS. Since its installation and first tests in 2022, several improvements have been implemented at HERMES. Our current goal is to perform reflectivity experiments with large neutron mirrors as a proof of concept, as the flux at the JNP is several orders of magnitude lower than the original ORPHEE flux or the one expected at a HiCANS. Nevertheless, Monte Carlo simulations show that an instrument as HERMES operating at a HiCANS could match the performance of similar instruments at research reactors and spallation sources.

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RIKEN accelerator-driven compact neutron systems, RANS project and their capabilities

Cited by 6 publications

References 10 publications

Design of Neutron Activation and Radiography Facilities Based on DD Generator

Design of Neutron Activation and Radiography Facilities Based on DD Generator

The HERMES reflectometer at the JULIC Neutron Platform

Development of neutron reflectometry for a HiCANS: The HERMES instrument at the JULIC Neutron Platform

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