Preliminary design of a laser accelerator beam line
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摘要
A compact laser plasma accelerator(CLAPA) is being built at Peking University, which is based on an RPA-PSA mechanism or other acceleration mechanisms. The beam produced by this laser accelerator has the characteristics of short duration, high pulse current, large divergence angle, and wide energy spectrum. The beam cannot be produced by a normal ion source and accelerator. The space charge field in the initial is very strong.According to the beam parameters from preparatory experiments and theoretical simulations, a compact beam line is preliminarily designed. The beam line mainly consists of common transport elements to deliver proton beam with the energy of 1–50 MeV, energy spread of 0–±1% and current of 0–108 proton per pulse to satisfy the requirement of different experiments. The simulation result of a 15 MeV proton beam with an energy spread of ±1%, current of 400 m A, and final spot radius of 9 mm is presented in this paper.
A compact laser plasma accelerator(CLAPA) is being built at Peking University, which is based on an RPA-PSA mechanism or other acceleration mechanisms. The beam produced by this laser accelerator has the characteristics of short duration, high pulse current, large divergence angle, and wide energy spectrum. The beam cannot be produced by a normal ion source and accelerator. The space charge field in the initial is very strong.According to the beam parameters from preparatory experiments and theoretical simulations, a compact beam line is preliminarily designed. The beam line mainly consists of common transport elements to deliver proton beam with the energy of 1–50 MeV, energy spread of 0–±1% and current of 0–108 proton per pulse to satisfy the requirement of different experiments. The simulation result of a 15 MeV proton beam with an energy spread of ±1%, current of 400 m A, and final spot radius of 9 mm is presented in this paper.
A compact laser plasma accelerator(CLAPA) is being built at Peking University, which is based on an RPA-PSA mechanism or other acceleration mechanisms. The beam produced by this laser accelerator has the characteristics of short duration, high pulse current, large divergence angle, and wide energy spectrum. The beam cannot be produced by a normal ion source and accelerator. The space charge field in the initial is very strong.According to the beam parameters from preparatory experiments and theoretical simulations, a compact beam line is preliminarily designed. The beam line mainly consists of common transport elements to deliver proton beam with the energy of 1–50 MeV, energy spread of 0–±1% and current of 0–108 proton per pulse to satisfy the requirement of different experiments. The simulation result of a 15 MeV proton beam with an energy spread of ±1%, current of 400 m A, and final spot radius of 9 mm is presented in this paper.
引文
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22 Ostroumov P N,Aseev V,Mustapha B.ANL,2006
23 YAN X Q,LIN C,LU H Y et al.Front.Phys.,2013,8(5):577
2 Mulser P,Bauer D,Ruhl H.Phys.Rev.Lett.,2008,101:225002
3 Daido H,Nishiuchi M,Pirozhkov A S.Rep.Prog.Phys.,2012,75:056401
4 YAN X Q,WU H C,SHENG Z M et al.Phys.Rev.Lett.,2009,103:135001
5 WANG H Y,YAN X Q,CHEN J E et al.Phys.Plasmas,2013,20:013101
6 WANG H Y,LIN C,SHENG Z M et al.Phys.Rev.Lett.,2011,107:265002
7 Mackinnon A J,Sentoku Y,Patel P K et al.Phys.Rev.Lett.,2002,88:215006
8 Fuchs J,Cecchetti C A,Borghesi M et al.Phys.Rev.Lett.,2007,99:015002
9 Roth M,Cowan T E,Key M H et al.Phys.Rev.Lett.,2001,86:436
10 Macchi A,Borghesi M,Passoni M.Rev.Mod.Phys.,2013,85:751
11 Ter-avetisyan S,Schnurer M,Polster R et al.Laser and Particle Beams,2008,26:637
12 Schollmeier M,Becker S,Geioel M.Phys.Rev.Lett.,2008,101:055004
13 Nishiuchi M,Daito I,Ikegami M et al.Appl.Phys.Lett.,2009,94:061107
14 Roth M,Alber I,Bagnoud V et al.Plasma Phys.Control.Fusion,2009,51:124039
15 Harres K,Alber I,Tauschwitz A et al.Phys.Plasmas,2010,17:023107
16 Toncian T,Amin M,Borghesi M et al.AIP Advances,2011,1:022142
17 Nishiuchi M,Sakaki H,Hori T et al.Phys.Rev.ST Accel.Beams,2010,13:071304
18 Yogo A,Maeda T,Hori T et al.Appl.Phys.Lett.,2011,98:053701
19 Hofmann K M,Schell S et al.J.Biophotonics,2012,5(11–12):903
20 Hofmann I,Meyer-ter-Vehn J,YAN X Q et al.Phys.Rev.ST Accel.Beams,2011,14:031304
21 JUNG D,YIN L,Albright B J et al.Phys.Rev.Lett.,2011,107:115002
22 Ostroumov P N,Aseev V,Mustapha B.ANL,2006
23 YAN X Q,LIN C,LU H Y et al.Front.Phys.,2013,8(5):577