Beyond injection: Trojan horse underdense photocathode plasma wakefield acceleration

Author(s):  
B. Hidding ◽  
J. B. Rosenzweig ◽  
Y. Xi ◽  
B. O'Shea ◽  
G. Andonian ◽  
...  
Author(s):  
G. G. Manahan ◽  
A. F. Habib ◽  
P. Scherkl ◽  
D. Ullmann ◽  
A. Beaton ◽  
...  

The ‘Trojan Horse’ underdense plasma photocathode scheme applied to electron beam-driven plasma wakefield acceleration has opened up a path which promises high controllability and tunability and to reach extremely good quality as regards emittance and five-dimensional beam brightness. This combination has the potential to improve the state-of-the-art in accelerator technology significantly. In this paper, we review the basic concepts of the Trojan Horse scheme and present advanced methods for tailoring both the injector laser pulses and the witness electron bunches and combine them with the Trojan Horse scheme. These new approaches will further enhance the beam qualities, such as transverse emittance and longitudinal energy spread, and may allow, for the first time, to produce ultrahigh six-dimensional brightness electron bunches, which is a necessary requirement for driving advanced radiation sources. This article is part of the Theo Murphy meeting issue ‘Directions in particle beam-driven plasma wakefield acceleration’.


2021 ◽  
Vol 9 ◽  
Author(s):  
M. Turner ◽  
A. J. Gonsalves ◽  
S. S. Bulanov ◽  
C. Benedetti ◽  
N. A. Bobrova ◽  
...  

Abstract We measured the parameter reproducibility and radial electron density profile of capillary discharge waveguides with diameters of 650 $\mathrm{\mu} \mathrm{m}$ to 2 mm and lengths of 9 to 40 cm. To the best of the authors’ knowledge, 40 cm is the longest discharge capillary plasma waveguide to date. This length is important for $\ge$ 10 GeV electron energy gain in a single laser-driven plasma wakefield acceleration stage. Evaluation of waveguide parameter variations showed that their focusing strength was stable and reproducible to $<0.2$ % and their average on-axis plasma electron density to $<1$ %. These variations explain only a small fraction of laser-driven plasma wakefield acceleration electron bunch variations observed in experiments to date. Measurements of laser pulse centroid oscillations revealed that the radial channel profile rises faster than parabolic and is in excellent agreement with magnetohydrodynamic simulation results. We show that the effects of non-parabolic contributions on Gaussian pulse propagation were negligible when the pulse was approximately matched to the channel. However, they affected pulse propagation for a non-matched configuration in which the waveguide was used as a plasma telescope to change the focused laser pulse spot size.


2007 ◽  
Vol 22 (23) ◽  
pp. 4265-4269
Author(s):  
MITSURU UESAKA ◽  
ANDREA ROSSI

We categorized 16 contributions into the three sub-fields. Those are 1. Compton scattering X-ray sources, 2. FEL and RF photoinjectors and 3. Plasma wakefield acceleration/innovative acceleration schemes. We performed a half day working group for each sub-field. The titles and summaries of the contributions appear in the article.


2017 ◽  
Vol 24 (10) ◽  
pp. 103114 ◽  
Author(s):  
Yangmei Li ◽  
Guoxing Xia ◽  
Konstantin V. Lotov ◽  
Alexander P. Sosedkin ◽  
Kieran Hanahoe ◽  
...  

2018 ◽  
Vol 1067 ◽  
pp. 042013
Author(s):  
K. Wang ◽  
C. Bruni ◽  
K. Cassou ◽  
V. Chaumat ◽  
N. Delerue ◽  
...  

Author(s):  
A. Martinez de la Ossa ◽  
R. W. Assmann ◽  
M. Bussmann ◽  
S. Corde ◽  
J. P. Couperus Cabadağ ◽  
...  

We present a conceptual design for a hybrid laser-driven plasma wakefield accelerator (LWFA) to beam-driven plasma wakefield accelerator (PWFA). In this set-up, the output beams from an LWFA stage are used as input beams of a new PWFA stage. In the PWFA stage, a new witness beam of largely increased quality can be produced and accelerated to higher energies. The feasibility and the potential of this concept is shown through exemplary particle-in-cell simulations. In addition, preliminary simulation results for a proof-of-concept experiment in Helmholtz-Zentrum Dresden-Rossendorf (Germany) are shown. This article is part of the Theo Murphy meeting issue ‘Directions in particle beam-driven plasma wakefield acceleration’.


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