简介：WepresentthefirststepsofadesignoftheoptimalparametersforafullBraggX-Rayfreeelectronlaser(BX-FEL).AimingtowardsafuturesourceofcoherentX-rayradiation,operatinginthestrongComptonregime,weenvisagethesystemtobetheseedforanadvancedlightsourceorcompactmedicalX-raysource.Herewefocusonthedesignoftheacceleratorparameters:maximumgradient,optimalacceleratedcharge,maximumefficiency,and‘wakecoefficient’,whichrelatestothedeceleratingelectricfieldgeneratedduetothemotionofacharged-lineortrainofcharged-lines.Specifically,wedemonstratethatthemaximumefficiencyhasoptimalvalueandgiventhefluenceofthematerials,themaximumacceleratedchargeinthetrainisconstant.Thesetworesultsmightbeimportantinanyfuturedesign.

简介：与不对称的纤维布拉格一起的新奇双波长的纤维激光栅栏(FBG)Fabry-Perot(FP)洞被建议并且试验性地示威了。几一致FBG被用作洞镜子，并且第三FBG被改变它的操作温度用作intracavity波长选购者。试验性的结果证明由调整intracavity波长选购者的操作温度，悦耳的双波长的激光排出物能被完成。结果表明与不对称的FBGFP共鸣器和它的技术可行性的双波长的放射激光的新概念。