Abstract
In this article, we present the promise of a new method generating double electron pulses in picosecond-scale pulse length and tunable interpulse spacing at several picoseconds. This has witnessed an impressive potential of application in pump–probe techniques, two-color X-ray free electron laser, high-gradient witness bunch acceleration in a plasma, etc. Three-dimensional simulations are carried out to analyze the dynamic of the electron beam in a linear accelerator. Comparisons are made between the new method and existing ways.
Similar content being viewed by others
References
J.M.J. Madey, Stimulated emission of bremsstrahlung in a periodic magnetic field. J. Appl. Phys. 42, 1906 (1971). doi:10.1063/1.1660466
W. Ackermann, G. Asova, V. Ayvazyan et al., Operation of a free-electron laser from the extreme ultraviolet to the water window. Nat. Photonics 1, 336–342 (2007). doi:10.1038/nphoton.2007.76
P. Emma, R. Akre, J. Arthur et al., First lasing and operation of an ångstrom-wavelength free-electron laser. Nat. Photonics 4, 641–647 (2010). doi:10.1038/nphoton.2010.176
T. Ishikawa, H. Aoyagi, T. Asaka et al., A compact X-ray free-electron laser emitting in the sub-angstrom region. Nat. Photonics 6, 540 (2012). doi:10.1038/nphoton.2012.141
A. Kondratenko, E. Saldin, Generation of coherent radiation by a relativistic electron beam in an undulator. Part. Accel. 10, 207 (1980)
R. Bonifacio, C. Pellegrini, L.M. Narducci, Collective instabilities and high-gain regime in a free electron laser. Opt. Commun. 50, 373 (1984). doi:10.1016/0030-4018(84)90105-6
E. Allaria, R. Appio, L. Badano et al., Highly coherent and stable pulses from the FERMI seeded free-electron laser in the extreme ultraviolet. Nat. Photonics 6, 699–704 (2012). doi:10.1038/NPHOTON.2012.233
E. Allaria, D. Castronovo, P. Cinquegrana et al., Two-stage seeded soft-X-ray free-electron laser. Nat. Photonics 7, 913–918 (2013). doi:10.1038/NPHOTON.2013.277
L.H. Yu, Generation of intense UV radiation by subharmonically seeded single-pass free-electron lasers. Phys. Rev. A 44, 5178 (1991). doi:10.1103/PhysRevA.44.5178
L.H. Yu, L. DiMauro, A. Doyuran et al., First ultraviolet high-gain harmonic-generation free-electron laser. Phys. Rev. Lett. 91, 074801 (2003). doi:10.1103/PhysRevLett.91.074801
L.H. Yu, I. Ben-Zvi, High-gain harmonic generation of soft X-rays with the “fresh bunch” technique. Nucl. Instrum. Methods Phys. Res. A 393, 96–99 (1997). doi:10.1016/S0168-9002(97)00435-X
C. Feng, Y. Ding, Z. Huang et al. Proceedings of FEL2012, Nara
A. Marinelli, D. Ratner, A.A. Lutman et al., High-intensity double-pulse X-ray free-electron laser. Nat. Commun. 6, 6369 (2015). doi:10.1038/ncomms7369
N.R. Thompson, B.W.J. McNeil, Mode locking in a free-electron laser amplifier. Phys. Rev. Lett. 100, 203901 (2008). doi:10.1103/PhysRevLett.100.203901
D. Xiang, Y. Ding, T. Raubenheimer et al., Mode-locked multichromatic X-ray in a seeded free-electron laser for single-shot X-ray spectroscopy. Phys. Rev. Spec. Top. Accel. Beams 15, 050707 (2012). doi:10.1103/PhysRevSTAB.15.050707
C. Feng, J. Chen, Z. Zhao, Generating stable attosecond X-ray pulse trains with a mode-locked seeded free-electron laser. Phys. Rev. Spec. Top. Accel. Beams 15, 080703 (2012). doi:10.1103/PhysRevSTAB.15.080703
D.J. Dunning, B.W.J. McNeil, N.R. Thompson, Few-cycle pulse generation in an X-ray free-electron laser. Phys. Rev. Lett. 110, 104801 (2013). doi:10.1103/PhysRevLett.110.104801
A.A. Lutman, R. Coffee, Y. Ding et al., Experimental demonstration of femtosecond two-color X-ray free-electron lasers. Phys. Rev. Lett. 110, 134801 (2013). doi:10.1103/PhysRevLett.110.134801
A.A. Lutman, F.J. Decker, J. Arthur et al., Demonstration of single-crystal self-seeded two-color X-ray free-electron lasers. Phys. Rev. Lett. 113, 254801 (2014). doi:10.1103/PhysRevLett.113.254801
C. Feng, Z. Wang, X. Wang et al., Generation of two-color ultra-short radiation pulses from two electron bunches and a chirped seeded free-electron laser. Nucl. Instrum. Methods Phys. Res. A 807, 79–85 (2016). doi:10.1016/j.nima.2015.11.001
M.J. Hogan, T.O. Raubenheimer, A. Seryi et al., Plasma wakefield acceleration experiments at FACET. New J. Phys. 12, 055030 (2010). doi:10.1088/1367-2630/12/5/055030
M. Litos, E. Adli, W. An et al., High-efficiency acceleration of an electron beam in a plasma wakefield accelerator. Nature 515, 92 (2014). doi:10.1038/nature13882
P. Emma, K. Bane, M. Cornacchia et al., Femtosecond and subfemtosecond X-ray pulses from a self-amplified spontaneous-emission- based free-electron laser. Phys. Rev. Lett. 92, 074801 (2004). doi:10.1103/PhysRevLett.92.074801
Z. Zhang, Y. Ding, A. Marinelli et al., Longitudinal dynamics of twin electron bunches in the linac coherent light source. Phys. Rev. Spec. Top. Accel. Beams 18, 030702 (2015). doi:10.1103/PhysRevSTAB.18.030702
M. Borland, Elegant: a flexible SDDS-compliant code for accelerator simulation, Adv. Photon Source LS-287 (2000)
Z. Wang, C. Feng, Q. Gu et al. Proceedings of IPAC2015, Richmond
Z. Zhang, Y. Ding, P. Emma et al., Flexible pulse delay control up to picosecond for high-intensity twin electron bunches. Phys. Rev. Spec. Top. Accel. Beams 18, 090701 (2015). doi:10.1103/PhysRevSTAB.18.090701
Acknowledgements
The authors are grateful to Zhi-Rong Huang, Meng Zhang and Da-Zhang Huang for helpful discussions.
Author information
Authors and Affiliations
Corresponding authors
Additional information
This work was partially supported by the Major State Basic Research Development Program of China (No. 2011CB808300) and the National Natural Science Foundation of China (Nos. 11175240, 11205234 and 11322550).
Rights and permissions
About this article
Cite this article
Wang, Z., Feng, C., Gu, Q. et al. Generation of double pulses at the Shanghai soft X-ray free electron laser facility. NUCL SCI TECH 28, 28 (2017). https://doi.org/10.1007/s41365-017-0188-9
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/s41365-017-0188-9