自由电子激光器引导场的研制与实验

一、前言 自由电子激光器目前面临一个重要问题乃是如何提高能量转换效率。虽然理论上预示它的能量转换效率可以高达50％,然而,实际获得几乎低一个量级。为此,科学工作者目前主要围绕这一目标进行工作,除了选择合适的Wiggler结构参数之外,在空间周期磁场下再迭加一个适当均匀磁场也可以提高激光器的增益,这是由于均匀磁场能引起回旋共振的结果。 二、磁体结构     

41T脉冲强磁■

引言目前,稳态磁场被限制在20T上下的水平,主要是线圈耗散大约为10MW量级的功率所引起的冷却问题难于解决。当磁场在50T时,劳仑兹所引起的机械应力,可与磁体的结构强度相比拟,因而当磁场大于50T时,人们不得不使用非常坚固的单层比特线圈。但它却大大缩短了脉冲时间。研究长脉冲磁场,可获得既能节省功率,又有足够持续时间的强磁场线圈。     

Study of the Parameters of a Magnetic DC Plasma Jet

1.IntroductionPlasmajetcanberegardedasafunctionalfluid,becauseithashighenthalPy,chemicalreactivityandfurtherthermodynadricchararteristiCs.Ithas,there-fore,beenfrequentlyutilizedinthemetallurgicalandchemicalprocessessuchaswelding,cutting,solidwasteprocessingandplasmadeposition,andfurtherinthepropulsionorcontrollingsystemforspacevehi-cleandaJsoMagneto-Hydro-Dynawhcgenerator[1].lntheseprocessesandenergyconversionsystems,itisveryimportanttocontrolprecisely,notonlythethermChfluidcharacteristicsof…     

A New Waste Disposal Technology—plasma arc Pyrolysis System

This paper introduces a new waste disposal technology with plasma arc.Being different from conventional combustion or burning such as incineration,it is based on a process called controlled pyrolysis-thermal destruction and recovery process.It has four advantages,they are completely safe,clean,high-energy synthesis gas,non-toxic vitrified slag and metal.     

DC Arc Plasma Disposal of Printed Circuit Board

A new solid waste disposal technology setup with DC arc plasma is presented. Being different from conventional combustion or burning such as incineration, it is based on a process called controlled high-temperature pyrolysis, the thermal destruction and recovery process. The results of vitrification of the circuit board is presented. The properties of vitrified product including hardness and leaching test results are presented. The final product (vitrified material) and airemission from the plasma treatment is environmentally acceptable.     

磁化水在纺织染色上应用的初步探讨

本文主要依据苏联《磁化水在纺织工业的应用》一文的报道,试图对其验证并进行了一些探讨,以寻找一条节省染料、燃料和清洗用水、提高色牢度及减少污染等的新途径。