Resistive field generation in intense proton beam interaction with solid targets

查看全文 作　　者：[1,2]W.Q.Wang;[2]J.J.Honrubia;[1]Y.Yin;[3]X.H.Yang;[1]F.Q.Shao

机构地区：[1]Department of Physics,National University of Defense Technology,Hunan,China;[2]ETSI Aeronáutica y del Espacio,Universidad Politécnica de Madrid,Madrid,Spain;[3]Department of Nuclear Science and Technology,National University of Defense Technology,Hunan,China

出　　处：《Matter and Radiation at Extremes》索引2024年第9卷第1期,共9页

基　　金：supported by the National Natural Sci-ence Foundation of China(Grant Nos.12005298,12275356,11774430,U2241281,and 12175309);Research Grant No.PID2022-137339OB-C22 of the Spanish Ministry of Education and Research;the Natural Science Foundation of Hunan Province(Grant Nos.2021JJ40661 and 2022JJ30656);a research project of the NUDT(Contract No.ZK19-25). 摘　　要：The Brown-Preston-Singleton(BPS)stopping power model is added to our previously developed hybrid code to model ion beam-plasma interaction.Hybrid simulations show that both resistive field and ion scattering effects are important for proton beam transport in a solid target,in which they compete with each other.When the target is not completely ionized,the self-generated resistive field effect dominates over the ion scattering effect.However,when the target is completely ionized,this situation is reversed.Moreover,it is found that Ohmic heating is important for higher current densities and materials with high resistivity.The energy fraction deposited as Ohmic heating can be as high as 20%-30%.Typical ion divergences with half-angles of about 5°-10°will modify the proton energy deposition substantially and should be taken into account. 关键词：INTERACTION BEAM INTENSE

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Resistive field generation in intense proton beam interaction with solid targets

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