Basic Physics and Measurments of Pure electron Plasmas in Crossed-field Amplifiers and Micro-Field Emitter Arrays

该基金旨在研究交叉场放大器（CFAs）和微场发射器阵列（MFEAs）中纯电子等离子体的基本非线性物理。该研究包括在低频（100- 200 MHz） CFA的相互作用区域进行现场测量，该CFA是专门为进行此类测量而设计的。这些包括三维测量的电子密度，射频场，等离子体势，电子能量分布函数，和噪声机制使用各种标准和新开发的诊断探头。真空场致发射体的发射是真空场致发射体的研究方向，在电子器件中有许多创新的应用。这一新兴技术还需要在非常小的尺度上对电子束动力学进行研究，这代表了等离子体研究的一个新领域。将为这些研究开发新的微型诊断仪。在为期三年的计划中，将利用现有的CFA和MFEAs作为我们的实验载体，从宏观和微观两个方面研究纯电子等离子体。MFEAs将进一步作为阴极和可控分布发射底在CFA中使用，以评估其有效性并研究其对CFA物理的影响。

This grant is intended to study the basic nonlinear physics of pure electron plasmas in crossed-field amplifiers (CFAs) and in Micro-Field Emitter Arrays (MFEAs). The study includes in situ measurements in the interaction region of a low frequency (100- 200 MHz) CFA which has been designed specifically for making such measurements. These include three-dimensional measurements of the electron density, rf field, plasma potential, electron energy distribution functions, and noise mechanisms using a variety of standard and newly developed diagnostic probes. The study of MFEAs concerns the emission from vacuum field-emitters which will have many innovative applications in electron devices such as the CFA. This emerging technology also requires a study of the electron beam dynamics in a very small scale which represents a new area of plasma research. New miniature diagnostics will be developed for these studies. For the proposed three year program, both the macro and micro aspects of pure electron plasmas using the existing CFA and MFEAs as our experimental vehicles will be studied. MFEAs will be further used in the CFA as a cathode and as a controllable distributed emitting-sole in order to evaluate their effectiveness and to study their effects on CFA physics.