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Analysis of Neutral Transport in GAMMA 10 SMBI Experiments

机译：GAMMA 10 SMBI实验中的中性传输分析

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Results of supersonic molecular beam injection (SMBI) into GAMMA 10 are described. By analyzing the two-dimensionalimage of the emission captured by a high-speedcamera, we investigated neutral transport during SMBI. The experimental results show that the degree of diffusion of the injected neutral particles decreases with increasing plenum pressure. By applying a three-dimensional Monte-Carlo simulation to GAMMA 10, we analyze the neutral-particle transport. The simulation given under the initial conditions of the conventional gas puffing could not reproduce the experimental results. Compared with experimental results, the results of simulation were too diffusive. The experimental SMBI results were roughly reproduced under more squeezed divergence angle of injected particles than that of a cosine distribution. These results reveal a difference between divergence angles for particles launched via SMBI and via conventional gas puffing.
机译：描述了向GAMMA 10中注入超音速分子束（SMBI）的结果。通过分析高速相机捕获的发射的二维图像，我们研究了SMBI期间的中性传输。实验结果表明，注入的中性粒子的扩散程度随着增压压力的增加而降低。通过将三维蒙特卡洛模拟应用于GAMMA 10，我们分析了中性粒子的传输。在常规吹气的初始条件下给出的模拟无法重现实验结果。与实验结果相比，模拟结果过于分散。 SMBI实验结果是在比压缩余弦分布更窄的注入粒子发散角下大致再现的。这些结果揭示了通过SMBI和传统的气体吹气发射的颗粒的发散角之间的差异。

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