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von der Leyen MW, Holloway J, Ma Y, Campbell PT, Aboushelbaya R, Qian Q, Antoine AF, Balcazar M, Cardarelli J, Feng Q, Fitzgarrald R, Hou BX, Kalinchenko G, Latham J, Maksimchuk AM, McKelvey A, Nees J, Ouatu I, Paddock RW, Spiers B, Thomas AGR, Timmis R, Krushelnick K, Norreys PA. Observation of Monoenergetic Electrons from Two-Pulse Ionization Injection in Quasilinear Laser Wakefields. Phys Rev Lett 2023; 130:105002. [PMID: 36962018 DOI: 10.1103/physrevlett.130.105002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/31/2023] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
The generation of low emittance electron beams from laser-driven wakefields is crucial for the development of compact x-ray sources. Here, we show new results for the injection and acceleration of quasimonoenergetic electron beams in low amplitude wakefields experimentally and using simulations. This is achieved by using two laser pulses decoupling the wakefield generation from the electron trapping via ionization injection. The injection duration, which affects the beam charge and energy spread, is found to be tunable by adjusting the relative pulse delay. By changing the polarization of the injector pulse, reducing the ionization volume, the electron spectra of the accelerated electron bunches are improved.
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Affiliation(s)
- M W von der Leyen
- Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom
- John Adams Institute for Accelerator Science, Denys Wilkinson Building, Oxford OX1 3RH, United Kingdom
| | - J Holloway
- Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom
| | - Y Ma
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - P T Campbell
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - R Aboushelbaya
- Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom
| | - Q Qian
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - A F Antoine
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Balcazar
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - J Cardarelli
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Q Feng
- Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom
| | - R Fitzgarrald
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - B X Hou
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - G Kalinchenko
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - J Latham
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - A M Maksimchuk
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - A McKelvey
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - J Nees
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - I Ouatu
- Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom
| | - R W Paddock
- Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom
| | - B Spiers
- Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom
| | - A G R Thomas
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - R Timmis
- Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom
| | - K Krushelnick
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - P A Norreys
- Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom
- John Adams Institute for Accelerator Science, Denys Wilkinson Building, Oxford OX1 3RH, United Kingdom
- Central Laser Facility, STFC, Rutherford Appleton Laboratory, Didcot, OX11 0QX, United Kingdom
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Tavera-Davila L, Liu HB, Herrera-Becerra R, Canizal G, Balcazar M, Ascencio JA. Analysis of Ag nanoparticles synthesized by bioreduction. J Nanosci Nanotechnol 2009; 9:1785-1791. [PMID: 19435040 DOI: 10.1166/jnn.2009.407] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Based on a green chemistry mechanism, small silver clusters were obtained by using biosynthesis with alfalfa (medicago sativa), controlling the size of the nanoparticles base don different pH conditions. The analysis of the samples was made with help of transmission electron microscopy methods, mainly with high angle annular dark field and high resolution transmission electron microscopy. The optimal conditions were identified when the sample was obtained at pH10, which allowed obtaining an average size of 4.09 nm and a standard deviation of 1.59, mainly based on cubic like structures.
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Affiliation(s)
- L Tavera-Davila
- Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón Esq, Con Paseo Tollocan, Toluca, Estado de México, C.P. 50160, México
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