Final Report for "Accurate Numerical Models of the Secondary Electron Yield from Grazing-incidence Collisions".

Seth A Veitzer

关键词: ACCELERATORS;    ELECTRONS;    HEAVY IONS;    PERFORMANCE;    STOPPING POWER Heavy-Ion Fusion;    grazing incidence;    stopping power;    inertial confinement fusion;    warm dense matter;    secondary electron emission;   

DOI  :  10.2172/939670
RP-ID  :  Final Report
PID  :  OSTI ID: 939670
Others  :  Other: 7035
Others  :  TRN: US1001944

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 摘 要 】

Effects of stray electrons are a main factor limiting performance of many accelerators. Because heavy-ion fusion (HIF) accelerators will operate in regimes of higher current and with walls much closer to the beam than accelerators operating today, stray electrons might have a large, detrimental effect on the performance of an HIF accelerator. A primary source of stray electrons is electrons generated when halo ions strike the beam pipe walls. There is some research on these types of secondary electrons for the HIF community to draw upon, but this work is missing one crucial ingredient: the effect of grazing incidence. The overall goal of this project was to develop the numerical tools necessary to accurately model the effect of grazing incidence on the behavior of halo ions in a HIF accelerator, and further, to provide accurate models of heavy ion stopping powers with applications to ICF, WDM, and HEDP experiments.