Dynamics of guided post-acceleration of protons in a laser-driven travelling-field accelerator
Dynamics of guided post-acceleration of protons in a laser-driven travelling-field accelerator
复制标题
激光驱动行场加速器中质子引导后加速的动力学
DOI：
--
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发表时间：
2020
影响因子：
2.2
通讯作者：
Satyabrata Kar
中科院分区：
文献类型：
--
作者：
P. Hadjisolomou;Hamad Ahmed;R. Prasad;M. Cerchez;S. Brauckmann;B. Aurand;A. Schroer;M. Swantusch;O. Willi;M. Borghesi;Satyabrata Kar
通过将激光驱动的电磁脉冲沿着螺旋路径引导，可以实现用于同时进行激光加速质子的束成形和再加速的行波场加速器布置。通过改变螺旋线圈的长度，研究了引导加速渡越质子的动力学。实验数据表明，与场区共同运动的质子表现出更强的聚焦，而增加线圈长度，由于同时后加速的动能增加。然而，当加速后的质子在适当的时候超过加速场区域时，恒定节距的线圈的净能量增益最终饱和。3D粒子跟踪模拟支持线圈内部的束流传输动力学，这突出了对可变节距线圈几何形状的要求，以便在延长的线圈上维持后加速。
By directing the laser-driven electromagnetic pulses along a helical path, one can achieve a travelling-field accelerator arrangement for simultaneous beam shaping and re-acceleration of laser-accelerated protons. The dynamics of guided acceleration of the transiting protons was studied by varying the length of the helical coil. Experimental data shows that the protons co-moving with the field region exhibit stronger focussing while increasing the coil length, with an increase of kinetic energy due to simultaneous post-acceleration. The net energy gain for a coil of constant pitch however saturates eventually when the post-accelerated protons overtakes the accelerating field region in due course. 3D particle tracing simulation underpins the dynamics of beam transport inside the coil, which highlights the requirement for a variable pitch coil geometry in order to sustain the post-acceleration over an extended coil.
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DOI：
10.1103/physrevstab.16.101302
发表时间：
2013-10-17
影响因子：
--
作者：
Busold, S.;Schumacher, D.;Roth, M.
通讯作者：
Roth, M.
影响因子：
16.6
作者：
Kar S;Ahmed H;Prasad R;Cerchez M;Brauckmann S;Aurand B;Cantono G;Hadjisolomou P;Lewis CL;Macchi A;Nersisyan G;Robinson AP;Schroer AM;Swantusch M;Zepf M;Willi O;Borghesi M
通讯作者：
Borghesi M
影响因子：
8.6
作者：
Pelka, A.;Gregori, G.;Roth, M.
通讯作者：
Roth, M.
影响因子：
8.6
作者：
Chen, S. N.;d'Humieres, E.;Fuchs, J.
通讯作者：
Fuchs, J.
影响因子：
8.6
作者：
Wagner, F.;Deppert, O.;Bagnoud, V.
通讯作者：
Bagnoud, V.