Scattering and extinction of ion beams in a dusty plasma device
Scattering and extinction of ion beams in a dusty plasma device
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尘埃等离子体装置中离子束的散射和消光
DOI：
10.1063/1.1419253
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发表时间：
2001
影响因子：
2.2
通讯作者：
Y. Nakamura
中科院分区：
文献类型：
--
作者：
Y. Nakamura
离子与带电尘埃粒子的碰撞对于尘埃声波和尘埃离子声波等低频波的传播具有重要意义。带电尘埃颗粒的碰撞截面积取决于离子束的速度。测量了带电尘埃粒子与束离子的碰撞截面积。它是比较的几何横截面积的粮食。实验是在一个尘埃双等离子体装置中进行的，装置中的玻璃珠平均直径为8.9 μm。用定向阻滞电位分析仪测量了离子束流和能量。据观察，当系统内的灰尘密度增加，束流比降低。根据离子束电流的减少，估计尘埃颗粒的有效横截面积作为束能量的函数。
Collisions of ions with charged dust grains are important for the propagation of low frequency waves such as dust acoustic waves and dust ion-acoustic waves. The collision cross-sectional area of charged dust grains depends on the velocity of an ion beam. The collision cross-sectional area of charged dust grains with beam ions is measured. It is compared with the geometrical cross-sectional area of the grain. The experiment is performed in a dusty double-plasma device with glass beads of 8.9 μm in average diameter. The ion beam current and energy are measured with a directional retarding potential analyzer. It is observed that, when dust density inside the system is increased, the beam current ratio is reduced. From the reduction of the ion beam current, the effective cross-sectional area of the dust particle is estimated as a function of the beam energy.
影响因子：
2.8
作者：
HAVNES, O;GOERTZ, CK;IP, W
通讯作者：
IP, W