Final Report for "Modeling Electron Cloud Diagnostics for High-Intensity Proton Accelerators"

Seth A Veitzer

关键词: ACCELERATORS;    CAVITIES;    CLOUDS;    DESIGN;    DIAGNOSTIC TECHNIQUES;    EFFICIENCY;    ELECTRON DENSITY;    ELECTRONS;    MITIGATION;    PERFORMANCE;    PROBABILITY;    PROTONS;    SIMULATION numerical modeling;    electron clouds;    plasma diagnostics;   

DOI  :  10.2172/964651
RP-ID  :  Final Report
PID  :  OSTI ID: 964651
Others  :  Other: 7134
Others  :  TRN: US1002787

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 摘 要 】

Electron clouds in accelerators such as the ILC degrade beam quality and limit operating efficiency. The need to mitigate electron clouds has a direct impact on the design and operation of these accelerators, translating into increased cost and reduced performance. Diagnostic techniques for measuring electron clouds in accelerating cavities are needed to provide an assessment of electron cloud evolution and mitigation. Accurate numerical modeling of these diagnostics is needed to validate the experimental techniques. In this Phase I, we developed detailed numerical models of microwave propagation through electron clouds in accelerating cavities with geometries relevant to existing and future high-intensity proton accelerators such as Project X and the ILC. Our numerical techniques and simulation results from the Phase I showed that there was a high probability of success in measuring both the evolution of electron clouds and the effects of non-uniform electron density distributions in Phase II.