自由电子

无引导磁场Raman自由电子激光实验的理论分析

Theoretical analysis of an Raman free electron laser experiment without axial magnetic field

Raman自由电子激光的半经典理论

Semiclassical theory of Raman free electron lasers

施主-可提供自由电子的搀杂物，使晶圆片呈现为n型。

Donor - A contaminate that has donated extra free electrons , thus making a wafer N-Type .

在半导体材料中维持电流的最小单元，在P型硅中是空穴，在N型硅中是自由电子。

The smallest unit that supports electron flow in a semiconductor material ; a hole in P-type silicon or a free electron in N-type silicon .

FED像CRT那样，也产生并把自由电子射过电子管。

As does the CRT , FED generates and shoots free electrons across a tube .

微型自由电子激光器的Maxwell方程解

Solutions of Maxwell Equations for Micro Free Electron Lasers

根据自由电子气模型，提出了一种用于计算原子激发态能级的X＿a交换参数的理论模型。

Based on the free-election-gas model , a theoretically determined X_a exchange parameter method which is suitable for calculating excited state energies was presented .

自由电子激光的准Dirac方程

Quasi Dirac equation in free electron laser

随着Al2O3含量的增加，电子空穴电导率变化不明显，自由电子电导率减小。

The electron hole conductivity had no change while free electron conductivity decreased with the increase of the Al_2O_3 content .

可能是由于在纯Si晶体中有较高的电离能，从而限制了Si等离子体中自由电子的形成。

Possibly , this is due to the higher ionization energy of Si in pure silicon crystal , which limited the free electron generation in the Si plasma .

振幅螺旋变化的周期wiggler场自由电子激光器增益研究

Gain Studies on Free-Electron Laser with Periodic Wiggler Field of Helical Variance Amplitude

NSRL储存环相干谐波自由电子激光实验总体布局

General design of coherent harmonic generation storage-ring free-electron laser of NSRL

新型Wiggler自由电子激光器的变参数理论

Theoretical Analysis of Variable Parameter Free Electron Laser with a Novel Wiggler All Changed

自由电子激光器（FEL）

Free Electron Lasers ( FEL )

对低增益及高增益自由电子激光的短脉冲滑移（slippage）效应分别进行了分析。

The slippage effect of short & pulse FEL is analysed for low gain and high gain ca-se respectively .

行波场Wiggler自由电子激光器

Free-electron lasers with travelling wave field wiggler

自由电子激光Wiggler磁场轴向分量对粒子稳定传输的影响

The Influence of the Axial Component of FEL Wiggler Magnetic-field upon the Propagation Stability of Particles

Cherenkov型自由电子激光器增益和效率的研究

Studies on gain and efficiency of Cherenkov FEL

采用一维流体理论导出了暖电子束条件下Raman型自由电子激光增益的解析式。此式清晰地描述了自由电子激光中的暖束效应。

This paper presents an analytical expression for the gain of the Free Electron Laser Operating in Raman Regime with a warm electron beam through the approach of one dimensional magnetohydrodynamics .

空气中的一部分co2分子会吸引那些自由电子。当进气歧管有真空存在时，真空便向上吸引膜片。

A few percent of the CO2 molecules in the air manage to find such electrons . When there is vacuum in the intake manifold , the vacuum holds the diaphragm up .

模拟结果证实了改型wiggler自由电子激光是实现短波长相干光辐射的重要途径之一。

Simulation results verifies that a modified wiggler free-electron laser is an important way to realize short-wavelength coherent radiation .

本论文研究了GaAs／AlGaAs多量子阱材料的电子以及自由电子激光辐照效应。

In this paper the author studied the effects of electron & free electron laser ( PEL ) irradiation on GaAs / AlGaAs multiple quantum wells .

自由电子激光器中的Cerenkov辐射

Cerenkov radiation in FEL

采用PIC模拟方法对同轴混合铁磁摇摆器自由电子激光器进行了研究，分析了等离子体填充对其性能的影响。

A coaxial hybrid wiggler free-electron laser ( FEL ) amplifier with and without plasma filling is studied by a method of PIC simulation in this paper .

探讨了利用相干渡越辐射（CTR）来测量自由电子激光（FEL）群聚电子束的测量方法。

The methods are discussed on measuring bunching electron beam of Free-Electron Laser ( FEL ) by Coherent Transit Radiation ( CTR ) .

表面等离激元（SPP）是金属中自由电子在外界光场激发下形成的电磁模式。

Surface Plasmon Polariton ( SPP ) is a kind of the electromagnetic surface mode , arising from the electron oscillation while excitated by external light incidence .

对传统的简单平均原子模型（AAM）作了改进：1使用了动态自由电子判据；

A traditional average-atom model ( AAM ) is improved in several aspects . 1 . A dynamic criterion for free electrons is adopted .

从Boltzmann方程出发，应用缓变场中自由电子近似推导出金属电磁介质材料的电-磁-热耦合的热传导定律。

In this paper the electro-magnetic heat conduction laws for electromagnetic metal materials are derived from the Boltzmann equation with the aid of approximation of free electron in slow-change field .

本文叙述了1987年10月我们用500keV.1kA环形电子束进行的喇曼型自由电子激光（FEL）实验。

A free-electron laser ( FEL ) superradiant amplifier experiment is described , in which an annular electron beam is generated by the EPA-74 pulse-line accelerator .

铁电单晶体自发极化引起的强周期性表面电场可能用来代替Wiggler磁铁产生自由电子激光。但落在铁电晶体表面上的自由电子将逐渐把表面势屏蔽掉。

The strong periodic surface electric strength caused by spontaneous polarization may be used as an undulator instead of Wiggler magnet to produce free electron laser .