RESEARCH INITIATION: Spectroscopy and Kinetics of Long Pulse Electron Beams

研究启动：长脉冲电子束的光谱学和动力学

• 批准号: 8504483
• 负责人: Mary Brake
• 金额: $ 6.68万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1985
• 资助国家: 美国
• 起止时间: 1985-05-01 至 1987-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8504483&HistoricalAwards=false
• 关键词: RESEARCH; INITIATION; Spectroscopy; Kinetics; Long

Long pulse relativistic electron beams (LPREB) have been studied for use in free electron lasers, accelerator technology, and high power microwave systems. Little work has been done, however, in examining LPREB for applications to visible and ultraviolet (uv) gas laser systems. The purpose of the research is to study the visible and near uv emission of LPREB produced plasmas using two electron beam accelerators and to interpret these results using a rate equation based computer model of the chemical kinetics. Time resolved visible and uv emission spectroscopy of inert gas plasmas (He, Ar and Ne) will be performed on two accelerators. One accelerator is the Febetron with voltage equalling 500 kV, current equalling 1.4 kA, and pulse length 250 ns. The second accelerator is the Michigan Electron Long Beam Accelerator (MELBA) with voltage of 1 MV, current of 10 kA, and pulse length of 1 us. The experiments vary pressure, current, and voltage values, pulse length, and gas composition. Theoretical studies of promising parametric regimes are planned with the computer model to optimize particular results and to indicate the potential of LPREB for gas laser systems.

本文研究了长脉冲相对论电子束（LPREB）的 用于自由电子激光器、加速器技术和高功率 微波系统 然而，在研究 用于可见光和紫外（uv）气体激光器的LPREB 系统. 本研究的目的是研究可见光和近距离的 LPREB双电子束等离子体的紫外发射 加速器，并解释这些结果使用速率方程的基础上 化学动力学的计算机模型 时间分辨可见光和紫外光 惰性气体等离子体（He，Ar和Ne）的发射光谱将被 在两个加速器上运行。 一个加速器是Febetron， 电压等于500 kV，电流等于1.4 kA，脉冲长度 250 ns。 第二个加速器是密歇根电子长束 加速器（MELBA），电压1 MV，电流10 kA，脉冲 长度为1 US。 实验改变了压力、电流和电压 值、脉冲长度和气体成分。 的理论研究 有希望的参数制度计划与计算机模型， 优化特定的结果，并指出LPREB的潜力， 气体激光系统