High Power Laser Science and Engineering, Volume. 2, Issue 4, 04000e31(2014)
Conceptual designs of a laser plasma accelerator-based EUV-FEL and an all-optical Gamma-beam source
Figures & Tables(4)
Fig. 1. Schematic of the EUV light source based on a compact FEL driven by a fiber laser-based plasma accelerator.
Fig. 2. Schematic illustration of the Gamma-beam source based on inverse Compton scattering off relativistic electron beams driven by a laser plasma accelerator.
Table 1. Parameters for laser plasma accelerator-based EUV FEL light sources.
View tableView in ArticleTable 1. Parameters for laser plasma accelerator-based EUV FEL light sources.
Case A B C D E Laser Laser wavelength ( 
)1 1 1 1 1 Average laser power (MW) 1.63 1.24 1.19 1.22 1.27 Repetition rate (MHz) 1.22 0.515 0.315 0.223 0.168 Laser energy per pulse (J) 1.34 2.40 3.79 5.52 7.57 Peak power (TW) 29 43 59 75 93 Pulse duration (fs) 46 56 65 73 82 Matched spot radius ( 
)19 23 27 30 34 Laser plasma accelerator Electron beam energy (MeV) 243 427 659 937 1257 Plasma density ( 
)8.3 5.6 4.2 3.2 2.6 Accelerator length (mm) 18 32 51 74 102 Charge per bunch (nC) 0.5 0.5 0.5 0.5 0.5 Field reduction factor 
0.223 0.267 0.302 0.325 0.364 Bunch duration (fs) 10 10 10 10 10 Energy spread (%) 
1.1
1.5
1.6
1.6
1.6Transverse beam size ( 
)25 25 25 25 25 Peak current (kA) 50 50 50 50 50 Average beam power (kW) 148 110 104 104 105 Efficiency of laser to beam (%) 9.1 8.9 8.7 8.5 8.3 Free electron laser Undulator period (mm) 5 10 15 20 25 Radiation wavelength (nm) 13.5 13.5 13.5 13.5 13.5 Gap (mm) 1 2 3 4 5 Peak magnetic field (T) 1.425 1.425 1.425 1.425 1.425 Undulator parameter 
0.666 1.33 2.00 2.66 3.33 Pierce parameter (%) 1.12 1.51 1.60 1.60 1.57 Gain length (mm) 41 61 86 115 146 Saturation length (mm) 499 721 1016 1355 1723 Number of periods 100 72 68 68 69 Spectral bandwidth (%) 1.0 1.4 1.5 1.5 1.5 R.m.s. radiation cone angle ( 
)116 97 82 71 63 Input power (MW) 0.94 3.03 5.26 7.48 9.72 Saturated power (GW) 82 194 317 451 596 Duration of EUV pulse (fs) 10 10 10 10 10 Average EUV power (kW) 1 1 1 1 1 Efficiency of EUV generation (%) 0.061 0.081 0.084 0.082 0.079
Table 2. Parameters for all-optical laser plasma accelerator-based Gamma-beam sources.
View tableView in ArticleTable 2. Parameters for all-optical laser plasma accelerator-based Gamma-beam sources.
Case A B C D E Laser plasma accelerator Laser wavelength ( 
)0.8 0.8 0.8 0.8 0.8 Repetition rate (Hz) 10 10 10 10 10 Laser energy per pulse (J) 1.78 2.56 3.68 4.55 5.31 Peak power (TW) 41 52 66 77 85 Pulse duration (fs) 43 49 55 59 62 Matched spot radius ( 
)18 20 23 24 26 Electron beam energy (MeV) 326 461 654 802 928 Plasma density ( 
)9.2 7.3 5.7 4.9 4.5 Accelerator length (mm) 24 34 50 61 72 Charge per bunch (nC) 0.5 0.5 0.5 0.5 0.5 Bunch duration (fs) 
10
10
10
10
10Transverse beam size ( 
)25 25 25 25 25 Compton scatter Photon energy (MeV) 2.5 5 10 15 20 Laser peak power (TW) 10 10 10 10 10 Pulse duration (fs) 250 250 250 250 250 Pulse energy (J) 2.5 2.5 2.5 2.5 2.5 Laser spot radius ( 
)25 25 25 25 25 Focused intensity ( 
)1 1 1 1 1 Repetition rate (Hz) 10 10 10 10 10 Luminosity ( 
)10 10 10 10 10 Total cross section (mb) 660 658 655 653 651 Total photon flux ( 
)6.60 6.58 6.55 6.53 6.51 Spectral bandwidth (%) 1.0 1.0 1.0 1.0 1.0 Scattering angle within 1% BW ( 
)313 222 157 128 111 Cross section within 1% BW (mb) 9.80 9.77 9.73 9.69 9.66 Photon flux within 1% BW ( 
)0.980 0.977 0.973 0.969 0.966
Tools
Get Citation
Copy Citation Text
Kazuhisa Nakajima. Conceptual designs of a laser plasma accelerator-based EUV-FEL and an all-optical Gamma-beam source[J]. High Power Laser Science and Engineering, 2014, 2(4): 04000e31
Paper Information
Category: High Energy Density Physics and High Power Laser 2014
Received: Jul. 7, 2014
Accepted: Aug. 14, 2014
Published Online: Jan. 13, 2015
The Author Email: Kazuhisa Nakajima (naka115@dia-net.ne.jp)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20