Postacceleration of Laser-Generated High-Energy Protons Through Conventional Accelerator Linacs
Postacceleration of Laser-Generated High-Energy Protons Through Conventional Accelerator Linacs
复制标题
通过传统加速器直线加速器对激光产生的高能质子进行后加速
DOI：
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发表时间：
2008
影响因子：
1.5
通讯作者：
J. Fuchs
中科院分区：
文献类型：
--
作者：
P. Antici;M. Fazi;A. Lombardi;M. Migliorati;L. Palumbo;P. Audebert;J. Fuchs
用粒子码PARMELA模拟了激光产生的质子通过传统漂管直线加速器（DTLs）的后加速过程。质子源产生于高强度短脉冲（350 fs）激光照射目标的后表面，并通过微透镜聚焦，该微透镜允许选择准直质子在70.1 MeV，均方根非归一化横向发射度为0.180 mm mrad。模拟结果表明，当质子总电荷为0.112 mA时，一个DTL槽可将质子加速到14 MeV以上，在不同的横向方向上，非标准化的横向发射度增长分别为8和22.6。这一首次数值研究表明，激光等离子体加速器与传统加速器之间的耦合是可能的，从而使最终光束的光度增加。
The postacceleration of laser-generated protons through conventional drift-tube linear accelerators (linacs) (DTLs) has been simulated with the particle-code PARMELA. The proton source is generated on the rear surface of a target irradiated by an high-intensity short-pulse (350 fs) laser and focused by a microlens that allows selecting collimated protons at 7 0.1 MeV with root-mean-square unnormalized transverse emittance of 0.180 mm mrad. The simulations show that protons can be accelerated by one DTL tank to more than 14 MeV with un normalized transverse-emittance growth of 8 and 22.6 in different transverse directions when considering a total proton charge of 0.112 mA. This first numerical study shows that coupling between laser-plasma accelerators with traditional accelerators is possible, allowing a luminosity gain for the final beam.
影响因子：
19.6
作者：
Fuchs, J;Antici, P;Audebert, R
通讯作者：
Audebert, R
影响因子：
56.9
作者：
Toncian, T;Borghesi, M;Willi, O
通讯作者：
Willi, O