Resonant beam extraction scheme with constant separatrix
Resonant beam extraction scheme with constant separatrix
复制标题
恒定分界线的谐振光束提取方案
DOI：
10.1016/0168-9002(92)90023-w
复制
发表时间：
1992
影响因子：
1.4
通讯作者：
M. Nishi
中科院分区：
文献类型：
--
作者：
K. Hiramoto;M. Nishi
提出了一种新的定分界线谐振引出方案，实现了小发射度、恒定位置和恒定尺寸的引出束。在这个方案中，恒定分界线内的电子感应加速器振荡的振幅通过电磁横向或纵向扰动或其他粒子的散射而增加。通过非线性共振提取分界线外的粒子。在计算机模拟中，将该方案应用于二阶谐振提取。作为横向扰动的度量，研究了滤波后的噪声和单色信号。提取的光束在相空间中的位置被发现是几乎恒定的，这意味着提取的光束的发射度几乎为零。
A new scheme for resonant extraction with a constant separatrix is presented to realize small emittance, constant position and size of the extracted beam. In this scheme, the amplitude of the betatron oscillations inside the constant separatrix is increased by electromagnetic transverse or longitudinal perturbations, or scattering by other particles. Particles outside the separatrix are extracted through nonlinear resonance. The scheme is applied to the second order resonant extraction in the computer simulations. As a measure of transverse perturbation, the filtered noise and monochromatic signal are studied. The position of the extracted beam in the phase space is found to be nearly constant, meaning that the emittance of the extracted beam almost vanishes.