简介：Usingthesingleparticletheoryandthenon--flexibilitycollisionmodelofelectronandphoton,theinfluenceoftheuncapturedelectronsontheenergyconversionefficiencyofmulti--photonnonlinearComptonscatteringintheextrastationarylaser--plasmaisinvestigated.Itshowsthatinextrastationarylaser—plasma,theuncapturedelectronsmaketheAtoofthescatteringfrequencyofthemulti--photonComptonfalldownwiththeincreasesoftheincidentradiationelectronspeed,thematerialsoftheincidentcollisionofelectronandphoton,andthenumberofthephotonswhichworkwiththeelectronsatthesametime.Underthemodulationoftheuncapturedelectronstothelaserfield,theenergyconversionefficiencybetweenelectronsandphotonswillfalldownwiththeincreaseoftheelectronincidentradiationspeed,usingthelow--powerelectronsforincidentsource,thelosscanbeefficientlyreduced.