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Laser accelerators can provide proton beams with unique qualities, such as micron size, picosecond pulse duration and high peak current, and have been demonstrated for various applications and for scientific research purposes. The effect of…

Accelerator Physics · Physics 2022-12-06 Zhu Jungao , Zhao Yuan , Lai Meifu , Gu Yongli , Xu Shixiang , Zhou Cangtao , Lu Haiyang

Laser-plasma accelerators are expected to deliver electron bunches with high space charge fields. Several recent publications have addressed the impact of space charge effects on such bunches after the extraction into vacuum. Artifacts due…

Accelerator Physics · Physics 2009-12-22 S. Becker , F. Grüner , D. Habs

Beam loading is the phenomenon which limits the charge and the beam quality in plasma based accelerators. An experimental study conducted with a laser-plasma accelerator is presented. Beam loading manifests itself through the decrease of…

Plasma Physics · Physics 2010-05-25 C. Rechatin , X. Davoine , A. Lifschitz , A. Ben Ismail , J. Lim , E. Lefebvre , J. Faure , V. Malka

Space charge effects can be very important for the dynamics of intense particle beams, as they repeatedly pass through nonlinear focusing elements, aiming to maximize the beam's luminosity properties in the storage rings of a high energy…

Accelerator Physics · Physics 2008-11-26 T. Bountis , Ch. Skokos

Space charge forces, which arise directly from the beam's charge distribution and include the influence of image charges and currents induced by interactions with a perfectly conducting, smooth pipe, are very important in high-intensity,…

Accelerator Physics · Physics 2025-05-21 Massimo Ferrario , Mauro Migliorati , Luigi Palumbo

Space charge effects play significant role in modern-day accelerators. These effects frequently constrain attainable beam parameters in an accelerator - or - in an accelerator chain. They also could limit the luminosity of hadron colliders…

Accelerator Physics · Physics 2015-06-19 Vladimir N. Litvinenko , Gang Wang

Propagation distances of intense laser pulses and high-charge electron beams through the plasma are, respectively, limited by diffraction and self-deceleration. This imposes severe constraints on the performance of the two major advanced…

Plasma Physics · Physics 2020-12-30 Tianhong Wang , Vladimir Khudik , Gennady Shvets

It is now well established that laser plasma acceleration (LPA) is an innovative and good candidate in the beam acceleration field. Relativistic beams are indeed produced up to several GeV but their quality remains to be demonstrated in the…

The operation and parameters of Bunch Shape Monitors using coherent transformation of time structure of an analyzed beam into a spatial one of low energy secondary electrons emitted from a wire target is influenced by the characteristics of…

Accelerator Physics · Physics 2007-05-23 A. V. Feschenko , V. A. Moiseev

Laser Plasma Acceleration (LPA) [1] is an emerging concept enabling to generate electron beams with high energy, high peak current and small transverse emittance within a very short distance. The use of LPA can be applied to the Free…

Accelerator Physics · Physics 2016-08-03 M Khojoyan , F. Briquez , M. Labat , A. Loulergue , O. Marcouillé , F. Marteau , G. Sharma , M. E. Couprie

The microbunching instability usually exists in the LINAC of a free electron laser (FEL) facility. In many cases, the longitudinal space charge (LSC) is a dominant factor that generates the instability. For the highly bright electron beams,…

Accelerator Physics · Physics 2013-10-01 Dazhang Huang , King Yuen Ng , Qiang Gu

Research activities on laser plasma accelerators are paved by many significant breakthroughs. This review article provides an opportunity to show the incredible evolution of this field of research which has, in record time, allowed…

Plasma Physics · Physics 2011-12-22 V. Malka

Beam-driven collinear wakefield accelerators (CWAs) that operate by using slow-wave structures or plasmas hold great promise toward reducing the size of contemporary accelerators. Sustainable acceleration of charged particles to high…

Accelerator Physics · Physics 2021-05-26 Wei-Hou Tan , Philippe Piot , Alexander Zholents

Laser-plasma acceleration (LPA) is a compact technique to accelerate electron bunches to highly relativistic energies, making it a promising candidate to power radiation sources for industrial or medical applications. We report on the…

The space charge forces are those generated directly by the charge distribution, with the inclusion of the image charges and currents due to the interaction of the beam with a perfectly conducting smooth pipe. Space charge forces are…

Accelerator Physics · Physics 2016-01-21 M. Ferrario , M. Migliorati , L. Palumbo

This study explores nanoparticle-assisted electron injection as a method for controlling beam charge in laser wakefield acceleration through particle-in-cell simulations. We systematically investigate how the material (Li through Au) and…

CO2 laser-driven electron acceleration is demonstrated with particle-in-cell simulation in low-density plasma. An intense CO2 laser pulse with long wavelength excites wakefield. The bubble behind it has a broad space to sustain a large…

Plasma Physics · Physics 2015-06-19 L. G. Zhang , B. F. Shen , J. C. Xu , L. L. Ji , X. M. Zhang , W. P. Wang , X. Y. Zhao , L. Q. Yi , Y. H. Yu , Y. Shi , T. J. Xu , Z. Z. Xu

A Compact laser plasma accelerator (CLAPA) is being built in Peking University, which is based on RPA-PSA mechanism or other acceleration mechanisms. According to the beam parameters from preparatory experiments and theoretical simulations,…

Accelerator Physics · Physics 2013-12-02 Y. Shang , K. Zhu , C. Cao , J. G. Zhu , Y. R. Lu , Z. Y. Guo , J. E. Chen , X. Q Yan

Linear acceleration in free space is a topic that has been studied for over 20 years, and its ability to eventually produce high-quality, high energy multi-particle bunches has remained a subject of great interest. Arguments can certainly…

We have investigated numerically the coupling between a 10 \si{MeV} electron bunch of high charge (\SI{> 100}{pc}) with a laser generated accelerating plasma wave. Our results show that a high efficiency coupling can be achieved using a…

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