Real-time dose assessment and visualization of radiation field for EAST tokamak

Tang, Zhongfeng; Peng, Long; Huang, Shanqing; Zou, Jun; Qiu, Yuefeng

doi:10.1016/j.fusengdes.2010.04.054

Cited by 13 publications

(7 citation statements)

References 13 publications

(11 reference statements)

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“…The RVIS (Radiation Virtual Simulation System) is a virtual dose evaluation system, using VR and scientific visualization technologies [24]. The final purpose of the system is useful for optimizing maintenance planning as well as educating and training workers.…”

Section: Mcam (Monte Carlo Automatic Modeling Program For Particlementioning

confidence: 99%

Overview of liquid lithium lead breeder blanket program in China

2011

Fusion Engineering and Design

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Section: Mcam (Monte Carlo Automatic Modeling Program For Particlementioning

confidence: 99%

Overview of liquid lithium lead breeder blanket program in China

2011

Fusion Engineering and Design

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“…Safety regulations are necessary to ensure the safety of fusion energy [1]. Among these safety measures, prediction or detection of the dose/dose rate distribution during operation and after shutdown is essential, and can keep the operation and maintenance of nuclear devices safe [4].…”

Section: Introductionmentioning

confidence: 99%

“…The Experimental Advanced Superconducting Tokamak (EAST) is a magnetic confinement experimental fusion device, which was designed and built at the Institute of Plasma Physics, Chinese Academy of Sciences and has successfully performed about 16 campaigns of plasma experiments from 2006 until now [5,6]. A mixed radiation field is produced during deuterium plasma discharge in the EAST device, and is characterized mainly by the release of D-D fusion neutrons and gamma rays [4]. For example, the neutron yield of D-D fusion has exceeded 1.0 × 10 14 s −1 when heated by the neutral beam injection (NBI) auxiliary heating system [5].…”

Section: Introductionmentioning

confidence: 99%

“…For example, the neutron yield of D-D fusion has exceeded 1.0 × 10 14 s −1 when heated by the neutral beam injection (NBI) auxiliary heating system [5]. The gamma rays are mainly produced by the nuclear reaction in the high-temperature plasma but are also generated when neutrons are subjected to inelastic scattering or trapped by the peripheral equipment's structural materials during the transport process [4].…”

Section: Introductionmentioning

confidence: 99%

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Preliminary assessment of genotoxic effects induced by radiation from EAST using Vicia faba micronucleus assay

Hong

Zhong

et al. 2021

J. Radiol. Prot.

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During long-pulse deuterium plasma operations in the Experimental Advanced Superconducting Tokamak (EAST), a mixed radiation field is generated, which is mainly composed of fusion neutrons, gamma rays, and x-rays. More accurate and effective dose monitoring methods have been developed and established to determine the ionizing radiation intensity both for the stable operation of the device and for the radiation safety of personnel. As far as we know, there are few reports about the biological effects of radiation induced by fusion neutrons and γ radiation, which are of vital importance for the assessment of radiation hazards presented by fusion devices, such as EAST, to human beings and the environment. In this study, three positions in the EAST hall were selected to detect genotoxic effects induced by nuclear fusion radiation using a Vicia faba micronucleus (MN) test for the first time. The doses of neutrons and gamma rays at these places were measured by thermoluminescence dosimeters four times between June 2019 and May 2020. The radiation doses decreased as the distances from the EAST device shell gradually increased from S1 to S3. The radiation in the EAST hall resulted in a significant induction of MN in the Vicia faba root tip cells compared to a negative control, which was different from the MN frequency induced by fission neutrons, γ-rays and other kinds of radiation in previous studies. These results indicate the existence of potential genotoxic effects induced by radiation from EAST which is different from other radiation and suggest that personnel should not be permitted to enter the experimental hall during the discharge process, and that radiation protection measures should be taken during necessary maintenance to avoid radiation damage. These newly acquired results will certainly increase our knowledge about the biological effects induced by radiation from nuclear fusion and provide good data support for developing more effective environmental and personnel fusion radiation protection.

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“…It is a CAD-based MC program for integrated simulation of nuclear system by making use of hybrid MC-deterministic method and advanced computer technologies. SuperMC 2.2, the latest version, can perform neutron, photon and coupled neutron and photon transport calculation and integrates automatic modeling and visualization (Wu and FDS Team, 2009;Wu et al, 2006;Hu et al, 2007;Long et al, 2010;Luo et al, 2010;Long et al, 2011;He et al, 2012;Tang et al, 2010). SuperMC/MCAM is the geometry and physics modeling part of SuperMC.…”

Section: Introductionmentioning

confidence: 99%