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首页> 外文期刊>Plasma physics and controlled fusion >Challenges in the extrapolation from DD to DT plasmas: experimental analysis and theory based predictions for JET-DT
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Challenges in the extrapolation from DD to DT plasmas: experimental analysis and theory based predictions for JET-DT

机译:从DD到DT等离子体外推的挑战:Jet-DT的实验分析与理论预测

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摘要

A strong modelling program has been started in support of the future JET-DT campaign with the aim of guiding experiments in deuterium (D) towards maximizing fusion energy production in Deuterium-Tritium (DT). Some of the key elements have been identified by using several of the most updated and sophisticated models for predicting heat and particle transport, pedestal pressure and heating sources in an integrated modelling framework. For the high beta and low gas operational regime, the density plays a critical role and a trend towards higher fusion power is obtained at lower densities. Additionally, turbulence stabilization by E x B flow shear is shown to generate an isotope effect leading to higher confinement for DT than DD and therefore plasmas with high torque are suitable for maximizing fusion performance. Future JET campaigns will benefit from this modelling activity by defining clear priorities on their scientific program.
机译:强大的建模计划已开始支持未来的Jet-DT活动,目的是指导氘(D)的实验,以使氘氚(DT)中的融合能量产生最大化。 已经通过使用几种最新和复杂的模型来识别一些关键元件,用于预测集成建模框架中的热量和粒子传输,基座压力和加热来源。 对于高β和低气操作状态,密度起到关键作用,在较低密度下获得较高融合功率的趋势。 另外,通过E X B流动剪切的湍流稳定,显示出产生同位素效应,导致DT比DD更高的限制,因此具有高扭矩的等离子体适用于最大化熔化性能。 未来的喷气活动将通过在科学计划的明确优先级定义明确的优先事项来受益于此建模活动。

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