Simulation of neutron emission spectra from neutral beam-heated plasmas in the EAST tokamak

Chen, Z.; Nocente, M.; Tardocchi, M.; Tieshuan, Fan; Gorini, G.

doi:10.1088/0029-5515/53/6/063023

Cited by 39 publications

(29 citation statements)

References 29 publications

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“…All of these components were calculated with the Monte Carlo code GENESIS, which can determine the neutron and γ -ray emission spectrum from the plasma using as input the reactant distribution functions. [32][33][34][35] A half-box model was adopted to represent the beam population. 36 The output from GENESIS was in turn validated by comparison with measurements from the TOFOR neutron spectrometer for a few discharges.…”

Section: Quantitative Analysis Of the Deposited Energy Spectrummentioning

confidence: 99%

Single crystal diamond detector measurements of deuterium-deuterium and deuterium-tritium neutrons in Joint European Torus fusion plasmas

Cazzaniga¹,

Sundén²,

Binda³

et al. 2014

Review of Scientific Instruments

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First simultaneous measurements of deuterium-deuterium (DD) and deuterium-tritium neutrons from deuterium plasmas using a Single crystal Diamond Detector are presented in this paper. The measurements were performed at JET with a dedicated electronic chain that combined high count rate capabilities and high energy resolution. The deposited energy spectrum from DD neutrons was successfully reproduced by means of Monte Carlo calculations of the detector response function and simulations of neutron emission from the plasma, including background contributions. The reported results are of relevance for the development of compact neutron detectors with spectroscopy capabilities for installation in camera systems of present and future high power fusion experiments.

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Section: Quantitative Analysis Of the Deposited Energy Spectrummentioning

confidence: 99%

Single crystal diamond detector measurements of deuterium-deuterium and deuterium-tritium neutrons in Joint European Torus fusion plasmas

Cazzaniga¹,

Sundén²,

Binda³

et al. 2014

Review of Scientific Instruments

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“…Energetic particles, ions as well as electrons, are ubiquitous in tokamaks. They are generated by heating systems, that rely on the injection of neutral beams (NBI) [1,2] or radio frequency (RF) waves [3,4] to reach core temperatures of some keV required by the fusion process. Each type of heating mechanism is a source of energetic ions, often in the MeV range, that must be confined until they transfer their energy to the bulk plasma by Coulomb collisions.…”

Section: Introductionmentioning

confidence: 99%

MeV range particle physics studies in tokamak plasmas using gamma-ray spectroscopy

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Nocente

et al. 2019

Plasma Phys. Control. Fusion

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Gamma-ray spectroscopy (GRS) has become an established technique to determine properties of the distribution function of the energetic particles in the MeV range, which are fast ions from heating and fusion reactions or runaway electrons born in disruptions.In this paper we present a selection of recent results where GRS is key to investigate the physics of MeV range particles. These range from radio-frequency heating experiments, where theoretical models can be tested with an unprecedented degree of accuracy, to disruption mitigation studies, where GRS sheds light on the effect of the actuators on the runaway electron velocity space. We further discuss the unique observational capabilities offered by the technique in deuterium-tritium plasmas, particularly with regard to the inference of the energyand pitch-resolved distribution function of the α particles born from fusion reactions in the plasma core.

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“…[1][2][3][4][5] Based on this experience, 2.5 MeV neutron measurements have also been proposed as diagnostics of the beam homogeneity for the SPIDER and MITICA Neutral Beam Injection (NBI) prototypes in Padua. In these devices, neutron emission will be used to measure the footprint of the deuterium beam when it hits the dump.…”

Section: Introductionmentioning

confidence: 99%

Neutron measurements from beam-target reactions at the ELISE neutral beam test facility

Xie

Nocente

Bonomo

et al. 2014

Review of Scientific Instruments

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Measurements of 2.5 MeV neutron emission from beam-target reactions performed at the ELISE neutral beam test facility are presented in this paper. The measurements are used to study the penetration of a deuterium beam in a copper dump, based on the observation of the time evolution of the neutron counting rate from beam-target reactions with a liquid scintillation detector. A calculation based on a local mixing model of deuterium deposition in the target up to a concentration of 20% at saturation is used to evaluate the expected neutron yield for comparison with data. The results are of relevance to understand neutron emission associated to beam penetration in a solid target, with applications to diagnostic systems for the SPIDER and MITICA Neutral Beam Injection prototypes

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Simulation of neutron emission spectra from neutral beam-heated plasmas in the EAST tokamak

Cited by 39 publications

References 29 publications

Single crystal diamond detector measurements of deuterium-deuterium and deuterium-tritium neutrons in Joint European Torus fusion plasmas

Single crystal diamond detector measurements of deuterium-deuterium and deuterium-tritium neutrons in Joint European Torus fusion plasmas

MeV range particle physics studies in tokamak plasmas using gamma-ray spectroscopy

Neutron measurements from beam-target reactions at the ELISE neutral beam test facility

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