Recent experiments on electron transport in high-intensity laser matter interaction
Recent experiments on electron transport in high-intensity laser matter interaction
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DOI：
10.1088/0741-3335/47/12b/s59
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发表时间：
2005-12-01
影响因子：
2.2
通讯作者：
Aglitskiy, Y
中科院分区：
文献类型：
--
作者：
Baton, SD;Batani, D;Aglitskiy, Y
我们介绍了最近在LULI实验室使用100TW激光装置进行的一些实验结果，这些实验是关于快电子在气体和固体靶中传播的研究。已经实现了新的诊断方法，包括啁啾阴影照相术和质子照相术。质子照相图像确实显示出气体中存在非常强的磁场，可能是由电荷分离产生的。反过来，这些意味着快速电子云在穿透气体时变慢，并强烈地抑制了传播。事实上，啁啾阴影图像显示电子云的速度在时间上比初值有很大的降低，大约是c的分数。我们还用锥靶进行了一些初步的实验，以验证在锥体存在的情况下的引导效果和电子的快速传播。最后，我们比较了改变目标规模所获得的结果。在这里，我们只给出第一次介绍和对数据的初步分析，这些数据将在接下来的文章中详细讨论。
We present the results of some recent experiments performed at the LULI laboratory using the 100 TW laser facility concerning the study of the propagation of fast electrons in gas and solid targets. Novel diagnostics have been implemented including chirped shadowgraphy and proton radiography. Proton radiography images did show the presence of very strong fields in the gas probably produced by charge separation. In turn these imply a slowing down of the fast electron cloud as it penetrates in the gas and a strong inhibition of propagation. Indeed chirped shadowgraphy images show a strong reduction in time of the velocity of the electron cloud from the initial value, which is of the order of a fraction of c. We also performed some preliminary experiments with cone targets in order to verify the guiding effect and fast electron propagation in presence of the cone. Finally we compared results obtained by changing the target size.Here we only give a first presentation and preliminary analysis of data, which will be addressed in detail in a following paper.