Direct measurements of neutral density depletion by two-photon absorption laser-induced fluorescence spectroscopy
Direct measurements of neutral density depletion by two-photon absorption laser-induced fluorescence spectroscopy
复制标题
双光子吸收激光诱导荧光光谱法直接测量中性密度损耗
DOI：
10.1063/1.2786601
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发表时间：
2007
影响因子：
4
通讯作者：
P. Chabert
中科院分区：
文献类型：
--
作者：
A. Aanesland;L. Liard;G. Leray;J. Jolly;P. Chabert
在磁化螺旋等离子体扩散室中，用双光子激发的空间分辨激光诱导荧光光谱测量了氙原子的基态密度。这种技术允许作者直接测量氙原子密度的相对变化，而无需任何假设。一个显着的中性气体密度耗尽的磁化等离子体的核心，在协议与以前的理论和实验工作。还发现中性气体密度在径向壁附近耗尽。
The ground state density of xenon atoms has been measured by spatially resolved laser-induced fluorescence spectroscopy with two-photon excitation in the diffusion chamber of a magnetized Helicon plasma. This technique allows the authors to directly measure the relative variations of the xenon atom density without any assumptions. A significant neutral gas density depletion was measured in the core of the magnetized plasma, in agreement with previous theoretical and experimental works. It was also found that the neutral gas density was depleted near the radial walls.