Laboratory evidence for stochastic plasma-wave growth.
نویسندگان
چکیده
The first laboratory confirmation of stochastic growth theory is reported. Floating potential fluctuations are measured in a vacuum arc centrifuge using a Langmuir probe. Statistical analysis of the energy density reveals a lognormal distribution over roughly 2 orders of magnitude, with a high-field nonlinear cutoff whose spatial dependence is consistent with the predicted eigenmode profile. These results are consistent with stochastic growth and nonlinear saturation of a spatially extended eigenmode, the first evidence for stochastic growth of an extended structure.
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ورودعنوان ژورنال:
- Physical review letters
دوره 99 20 شماره
صفحات -
تاریخ انتشار 2007