Generation of high-quality mega-electron volt proton beams with intense-laser-driven nanotube accelerator
Generation of high-quality mega-electron volt proton beams with intense-laser-driven nanotube accelerator
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DOI：
10.1063/1.4798594
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发表时间：
2013-04
影响因子：
4
通讯作者：
M. Murakami;Motohiko Tanaka
中科院分区：
文献类型：
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作者：
M. Murakami;Motohiko Tanaka
提出了一种利用碳纳米管(CNT)加速离子的方案，在该方案中，嵌入的低Z材料碎片被超短的强激光照射以发射大量的电子。由于产生的特征静电场，纳米管和埋入材料分别起到枪管和子弹的作用，产生高度准直的准单能离子束。三维粒子模拟表明，在超强静电场∼1014V m−1作用下，利用纳米碳纳米管可以产生准单能MeV级质子束。
An ion acceleration scheme using carbon nanotubes (CNTs) is proposed, in which embedded fragments of low-Z materials are irradiated by an ultrashort intense laser to eject substantial numbers of electrons. Due to the resultant characteristic electrostatic field, the nanotube and embedded materials play the roles of the barrel and bullets of a gun, respectively, to produce highly collimated and quasimonoenergetic ion beams. Three-dimensional particle simulations, that take all the two-body Coulomb interactions into account, demonstrate generation of quasimonoenergetic MeV-order proton beams using nanometer-size CNT under a super-intense electrostatic field ∼1014 V m−1.