کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1827291 1526476 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Robust fuel target in heavy ion inertial fusion
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Robust fuel target in heavy ion inertial fusion
چکیده انگلیسی

Uniformity of heavy ion beam (HIB) illumination is one of the key issues in HIB inertial confinement fusion (HIF): deviation from fuel implosion symmetry should be less than a few percent in order to compress a fuel sufficiently and release fusion energy effectively. In this paper, a new mitigation method of the Rayleigh–Taylor (R-T) instability growth is presented in order to make a HIF target robust against a non-uniform implosion. In this study a new mitigation method of R-T instability growth is proposed based on an oscillating perturbed acceleration, which can be realized by a rotating or oscillating HIB illumination onto a fuel pellet. The R-T instability analyses and fluid simulations demonstrate that the oscillating acceleration reduces the R-T instability growth significantly. In this paper a baseline steady acceleration g0 is perturbed by a perturbed oscillating acceleration δg, which is spatially non-uniform and oscillates in time (g0⪢δg). An example result shows 84% reduction of the R-T instability growth.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 606, Issues 1–2, 11 July 2009, Pages 152–156
نویسندگان
, , , , ,