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A criterion to estimate the effectiveness of plasma focus systems

机译:评估等离子体聚焦系统有效性的标准

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We postulate that what determines neutron yield from discharges in a deuterium-filled plasma focus apparatus is the amount of energy passed from the capacitor bank to the individual deuterons participating in the pinch. We study plasma focus discharges within the framework of the snow plow model and write down an expression for the energy passed from the capacitor bank to the particles forming the pinch. Provided the shape of the plasma focus apparatus is fixed, this expression turns out to depend on only two dimensionless parameters comprising the electric and geometric features of the system altogether. We found that the energy per particle at pinching has a unique maximum value as a function of these dimensionless parameters, so that a criterion for optimizing plasma focus performance (i.e. neutron yield) results. We use the current formalism to evaluate the performance of a collection of practical plasma focus systems of various sizes and shapes. Finally, we indicate some modifications-obtained within the framework of the snow plow model-to be introduced in a number of practical systems under examination in order to improve their performance.
机译:我们假设决定由充氘等离子体聚焦装置中的放电产生的中子产率的是从电容器组传递到参与收缩的各个氘核的能量。我们在除雪机模型的框架内研究等离子体聚焦放电,并写下从电容器组传递到形成收缩的颗粒的能量的表达式。假设等离子聚焦装置的形状是固定的,则该表达式仅取决于两个无量纲参数,这些参数一共包括系统的电和几何特征。我们发现,捏合时每个粒子的能量根据这些无量纲参数具有唯一的最大值,因此得出了优化等离子体聚焦性能(即中子产率)的标准。我们使用当前的形式主义来评估各种尺寸和形状的实用等离子聚焦系统集合的性能。最后,我们指出了在雪犁模型的框架内获得的一些修改,这些修改将被引入许多正在研究的实际系统中,以提高其性能。

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