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Report on the Advanced Linear Collider Study Group (ALEGRO) Workshop 2024
/ Andriyash, I.A. (Palaiseau, Lab. Opt. Appl.) ; Apsimon, O. (Manchester U.) ; Backhouse, M. (JAI, UK) ; Benedetti, C. (LBL, Berkeley) ; Bulanov, S.S. (LBL, Berkeley) ; Caldwell, A. (Munich, Max Planck Inst.) ; Chen, Min (Shanghai Jiao Tong U.) ; Cilento, V. (CERN) ; Corde, S. (Palaiseau, Lab. Opt. Appl.) ; D'Arcy, R. (Oxford U.) et al.
The workshop focused on the application of ANAs to particle physics keeping in mind the ultimate goal of a collider at the energy frontier (10 TeV, e$^+$/e$^-$, e$^-$/e$^-$, or $\gamma\gamma$). [...]
arXiv:2408.03968.
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72.
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Experimental Demonstration of Ultrashort mu J-Class Pulses in the Terahertz Regime from a Laser Wakefield Accelerator
/ Plateau, G R D (LBL, Berkeley) ; Albert, O ; Esarey, E (Nevada U., Reno) ; Geddes, C G R (LBL, Berkeley) ; Leemans, W (Nevada U., Reno) ; Matlis, N H (LBL, Berkeley) ; Schroeder, C B (LBL, Berkeley) ; Toth, C (LBL, Berkeley) ; van Tilborg, J (LBL, Berkeley)
2008 - 3 p.
External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.WEPP138
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Optical Injection into Laser Wake Field Accelerators
/ Cary, John R ; Bruhwiler, David L ; Esarey, Eric ; Geddes, Cameron G R ; Giacone, Rodolfo ; Leemans, Wim ; Nieter, Chet
The accelerating gradient of laser-generated wake fields in plasmas can be orders of magnitude greater than the gradients obtainable in traditional, rf structures. One of the hurdles to overcome on the road to practical utilization of said plasma wake fields for production of high energy particles is the creation of quality beams having significant charge, low emittance, and narrow energy spread. [...]
2005
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.e-proc. TOPA003
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Laser Guiding of a 100 TW Laser Beam in a Capillary Discharge Waveguide
/ Nagler, Bob ; Cowan, Thomas ; Esarey, Eric ; Filip, Catalin ; Geddes, Cameron G R ; Gonsalves, Anthony J ; Hooker, Simon ; Leemans, Wim ; Spence, D ; Toth, Csaba
Experiments are underway at LBNL on guiding high peak power (up to 100 TW), ultra-short (<50 fs) laser pulses using a preformed plasma channel created by an electrical discharge in a capillary. The laser beam is produced by the multi-beam l'OASIS Ti:sapphire laser system and is focused onto the entrance of the capillary using a 2 meter focal length off-axis parabola. [...]
2005
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.e-proc. TPAE021
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Experimental Progress on a 1 GeV Laser Accelerator at LBNL
/ Leemans, Wim ; Cowan, Thomas ; Esarey, Eric ; Filip, Catalin ; Geddes, Cameron G R ; Gonsalves, Anthony J ; Hooker, Simon ; Michel, Estelle ; Michel, Pierre ; Nagler, Bob et al.
Experimental progress towards the realization of a 1 GeV laser-driven plasma-based accelerator at the L’OASIS facility of LBNL will be discussed. The design of the 1 GeV accelerator module consists of two components: (1) an all-optical electron injector and (2) a plasma channel for laser guiding and electron acceleration to high energy via the laser wakefield acceleration (LWFA) mechanism [...]
2005
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.e-proc. TPAE019
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Particle-in-Cell Simulations of Lower-Density CM-Scale Capillary Channels
/ Messmer, Peter ; Bruhwiler, David L ; Dimitrov, Dimitre ; Esarey, Eric ; Geddes, Cameron G R ; Leemans, Wim ; Stoltz, Peter
Capillary channels of cm-length and at plasma density low compared to gas jets are promising setups for low noise laser wakefield acceleration. Computationally, however, the large discrepancy of the length scales of the plasma and the laser are a big challenge. [...]
2005
External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2248
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Simulations of Laser Pulse Coupling and Transmission Efficiency in Plasma Channels
/ Giacone, Rodolfo ; Bruhwiler, David L ; Cary, John R ; Dimitrov, Dimitre ; Esarey, Eric ; Geddes, Cameron G R ; Leemans, Wim ; Messmer, Peter
Optical guiding of the laser pulse in a laser wakefield accelerator (LWFA) via plasma channels can greatly increase the interaction length and, hence, the maximun energy of trapped electrons.* Energy efficient coupling of laser pulses from vacuum into plasma channels is very important for optimal LWFA performance. We present 2D particle-in-cell simulations of this problem using the VORPAL code.** Some of the mechanisms considered are enhanced leakage of laser energy transversely through the channel walls, enhanced refraction due to tunneling ionization of neutral gas on the periphery of the gas jet, ionization of neutral gas by transverse wings of the laser pulse and effect of the pulse being off axis of the channel [...]
2005
External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2179
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Laser Plasma Sources for High Brightness Beams : from THz to X-rays
/ Leemans, W ; Esarey, E ; Fubiani, G ; Geddes, C G R ; Michel, P ; Nagler, B ; Nakamura, K ; Schroeder, C B ; Shadwick, B ; Toth, C et al.
Laser driven accelerators are capable of producing energetic electron beams using ultra-high gradients on the order of 10-100 GV/m. Prior to 2004, experiments had demonstrated high energy acceleration but with 100 % energy spread. [...]
2005
External link: Published version from JACoW
In : 27th International Conference on Free Electron Lasers, Palo Alto, CA, USA, 21 - 26 Aug 2005, pp.e-proc. THOA001
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Shaping of Pulses in Optical Grating-Based Laser Systems for Optimal Control of Electrons in Laser Plasma Wake-Field Accelerator
/ Toth, C ; Faure, J ; Geddes, C G R ; Leemans, W P ; Van Tilborg, J
2003 - 3 p.
External link: Published version from JACoW
In : 20th IEEE Particle Accelerator Conference, Portland, OR, USA, 12 - 16 May 2003, pp.1840
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