强激光与粒子束
彊激光與粒子束
강격광여입자속
HIGH POWER LASER AND PARTICLEBEAMS
2012年
5期
1085-1088
,共4页
余金清%洪伟%金晓林%周维民%李斌%谷渝秋
餘金清%洪偉%金曉林%週維民%李斌%穀渝鞦
여금청%홍위%금효림%주유민%리빈%곡투추
质子加速%鞘场加速机制%粒子模拟%质子束质量
質子加速%鞘場加速機製%粒子模擬%質子束質量
질자가속%초장가속궤제%입자모의%질자속질량
proton acceleration%target normal sheath acceleration%particle-in-cell simulation%proton beam quality
为了更细致地理解鞘场质子加速机制,应用2维数值模拟程序Flips2D研究了质子的初始位置对加速以后质子束特性的影响.数值模拟结果表明:质子的初始位置对质子束特性的影响非常明显.质子的出射角与其在横向的初始位置有关,初始位置离激光轴越远,其出射角越大.
為瞭更細緻地理解鞘場質子加速機製,應用2維數值模擬程序Flips2D研究瞭質子的初始位置對加速以後質子束特性的影響.數值模擬結果錶明:質子的初始位置對質子束特性的影響非常明顯.質子的齣射角與其在橫嚮的初始位置有關,初始位置離激光軸越遠,其齣射角越大.
위료경세치지리해초장질자가속궤제,응용2유수치모의정서Flips2D연구료질자적초시위치대가속이후질자속특성적영향.수치모의결과표명:질자적초시위치대질자속특성적영향비상명현.질자적출사각여기재횡향적초시위치유관,초시위치리격광축월원,기출사각월대.
For further understanding of the proton acceleration by target normal sheath acceleration (TNSA),the effect of the proton initial locations on the quality of the proton beam is investigated by two-dimensional particle-iu-cell (2D-PIC) code Flips2D.The simulation results show that the effect of the proton initial locations on the proton quality is very significant.The divergence of protons is related to their initial locations in transverse direction.The farther away the protons is from the laser axis,the larger the proton divergence can be received.
