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        <span style="font-family:SimSun;">Hi all,<br>
</span> 
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        <span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;">  I am doing some simulations with LaserSlab，and the following  picture shows that a laser beam hits the target and produces the electron beam.</span> 
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        <span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;"><span style="font-family:SimSun;"></span></span><span style="font-family:SimSun;"></span> 
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        <span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;"><img src="cid:3b25e5cb$1$17233656031$Coremail$zsz526654434$stu.xjtu.edu.cn" alt=""></span><span style="font-family:SimSun;"><br>
</span> 
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        <span style="font-family:SimSun;">  I want to know whether FLASH can calculate the electromagnetic field generated by the electron beam based on this simulation result. If it can, <br>
</span>
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        <span style="font-family:SimSun;">what should I do ? and if not, are there any other codes that can do this ?</span>
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        <span style="font-family:SimSun;"><br>
</span>
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        <span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span>T<span style="font-family:SimSun;"><span style="font-family:SimSun;"><span style="font-family:SimSun;">hanks</span></span></span>
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        <span style="font-family:SimSun;"><span style="font-family:SimSun;"><span style="font-family:SimSun;"></span><br>
</span></span>
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        <span style="font-family:SimSun;"><span style="font-family:SimSun;"></span>Shizheng</span>
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<span style="font-family:SimSun;"></span>
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        <span style="font-family:SimSun;"></span> 
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<span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><span style="font-family:SimSun;"></span><br>