典型文献
Accurate electron beam phase-space theory for ionization-injection schemes driven by laser pulses
文献摘要：
After the introduction of the ionization-injection scheme in laser wake field acceleration and of related high-quality electron beam generation methods,such as two-color and resonant multi-pulse ionization injection(ReMPI),the theory of thermal emittance has been used to predict the beam normalized emittance obtainable with those schemes.We recast and extend such a theory,including both higher order terms in the polynomial laser field expansion and non-polynomial corrections due to the onset of saturation effects on a single cycle.Also,a very accurate model for predicting the cycle-averaged distribution of the extracted electrons,including saturation and multi-process events,is proposed and tested.We show that our theory is very accurate for the selected processes of Kr8+→10+and Ar8+→10+,resulting in a maximum error below 1％,even in a deep-saturation regime.The accurate prediction of the beam phase-space can be implemented,for example,in laser-envelope or hybrid particle-in-cell(PIC)/fluid codes,to correctly mimic the cycle-averaged momentum distribution without the need for resolving the intra-cycle dynamics.We introduce further spatial averaging,obtaining expressions for the whole-beam emittance fitting with simulations in a saturated regime,too.Finally,a PIC simulation for a laser wakefield acceleration injector in the ReMPI configuration is discussed.
文献关键词：
中图分类号：
作者姓名：
Paolo Tomassini;Francesco Massimo;Luca Labate;Leonida A.Gizzi
作者机构：
Intense Laser Irradiation Laboratory,INO-CNR,Pisa,Italy;ELI-NP Magurele,Ilfov,Romania;Maison de la Simulation,CEA,USR 3441,Gif-sur-Yvette,France;INFN,Sect.of Pisa,Pisa,Italy
文献出处：
引用格式：
[1]Paolo Tomassini;Francesco Massimo;Luca Labate;Leonida A.Gizzi-.Accurate electron beam phase-space theory for ionization-injection schemes driven by laser pulses)[J].高功率激光科学与工程（英文版）,2022(02):64-79
A类：
ReMPI,Kr8+,10+and,Ar8+
B类：
Accurate,beam,phase,space,theory,ionization,injection,schemes,driven,by,laser,pulses,After,introduction,acceleration,related,quality,generation,methods,such,two,color,resonant,multi,thermal,emittance,been,used,normalized,obtainable,those,We,recast,extend,including,both,higher,order,terms,polynomial,expansion,corrections,due,onset,saturation,effects,single,cycle,Also,very,accurate,model,predicting,averaged,distribution,extracted,electrons,events,proposed,tested,show,that,our,selected,processes,resulting,maximum,error,below,deep,regime,prediction,can,implemented,example,envelope,hybrid,particle,cell,PIC,fluid,codes,correctly,mimic,momentum,without,need,resolving,intra,dynamics,introduce,further,spatial,averaging,obtaining,expressions,whole,fitting,simulations,saturated,too,Finally,wakefield,injector,configuration,discussed
AB值：
0.538808
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