dorsal/arxiv
View SchemaOn the production of flat electron bunches for laser wake field acceleration
| Authors | M. Kando, Y. Fukuda, H. Kotaki, J. Koga, S. V. Bulanov, T. Tajima, A. Chao, R. Pitthan, K. -P. Schuler, A. G. Zhidkov, K. Nemoto |
|---|---|
| Categories | |
| ArXiv ID | physics/0606061 |
| URL | https://arxiv.org/abs/physics/0606061 |
| DOI | 10.1134/S1063776107110064 |
| Journal | J.Exp.Theor.Phys.105:916-926,2007 |
Abstract
We suggest a novel method for injection of electrons into the acceleration phase of particle accelerators, producing low emittance beams appropriate even for the demanding high energy Linear Collider specifications. In this paper we work out the injection into the acceleration phase of the wake field in a plasma behind a high intensity laser pulse, taking advantage of the laser polarization and focusing. With the aid of catastrophe theory we categorize the injection dynamics. The scheme uses the structurally stable regime of transverse wake wave breaking, when electron trajectory self-intersection leads to the formation of a flat electron bunch. As shown in three-dimensional particle-in-cell simulations of the interaction of a laser pulse in a line-focus with an underdense plasma, the electrons, injected via the transverse wake wave breaking and accelerated by the wake wave, perform betatron oscillations with different amplitudes and frequencies along the two transverse coordinates. The polarization and focusing geometry lead to a way to produce relativistic electron bunches with asymmetric emittance (flat beam). An approach for generating flat laser accelerated ion beams is briefly discussed.
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"abstract": "We suggest a novel method for injection of electrons into the acceleration\nphase of particle accelerators, producing low emittance beams appropriate even\nfor the demanding high energy Linear Collider specifications. In this paper we\nwork out the injection into the acceleration phase of the wake field in a\nplasma behind a high intensity laser pulse, taking advantage of the laser\npolarization and focusing. With the aid of catastrophe theory we categorize the\ninjection dynamics. The scheme uses the structurally stable regime of\ntransverse wake wave breaking, when electron trajectory self-intersection leads\nto the formation of a flat electron bunch. As shown in three-dimensional\nparticle-in-cell simulations of the interaction of a laser pulse in a\nline-focus with an underdense plasma, the electrons, injected via the\ntransverse wake wave breaking and accelerated by the wake wave, perform\nbetatron oscillations with different amplitudes and frequencies along the two\ntransverse coordinates. The polarization and focusing geometry lead to a way to\nproduce relativistic electron bunches with asymmetric emittance (flat beam). An\napproach for generating flat laser accelerated ion beams is briefly discussed.",
"arxiv_id": "physics/0606061",
"authors": [
"M. Kando",
"Y. Fukuda",
"H. Kotaki",
"J. Koga",
"S. V. Bulanov",
"T. Tajima",
"A. Chao",
"R. Pitthan",
"K. -P. Schuler",
"A. G. Zhidkov",
"K. Nemoto"
],
"categories": [
"physics.acc-ph",
"physics.plasm-ph"
],
"doi": "10.1134/S1063776107110064",
"journal_ref": "J.Exp.Theor.Phys.105:916-926,2007",
"title": "On the production of flat electron bunches for laser wake field acceleration",
"url": "https://arxiv.org/abs/physics/0606061"
},
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