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  Linear Electron Acceleration in THz Waveguides

Nanni, E. A., Graves, W. S., Hong, K.-H., Huang, W. R., Ravi, K., Wong, L. J., et al. (2014). Linear Electron Acceleration in THz Waveguides. In IPAC2014: Proceedings of the 5th International Particle Accelerator Conference (pp. 1896-1899). Geneva, Switzerland: Joint Accelerator Conferences Website JACoW.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0026-D0EF-B Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0026-D0F2-1
Genre: Conference Paper

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weoab03.pdf (Publisher version), 338KB
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2014
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© E. A. Nanni, W. S. Graves, K.-H. Hong, W. R. Huang, K. Ravi, L. J. Wong, G. Moriena, A. Fallahi, R. J. D. Miller, and F. X. Kärtner

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 Creators:
Nanni, E. A.1, Author
Graves, W. S.1, Author
Hong, K.-H.1, Author
Huang, W. R.1, Author
Ravi, K.1, Author
Wong, L. J.1, Author
Moriena, G.2, Author
Fallahi, A.3, Author
Miller, R. J. D.2, 4, Author              
Kärtner, F. X.1, 3, Author
Affiliations:
1MIT, Cambridge, Massachusetts, USA, ou_persistent22              
2University of Toronto, Toronto, Canada, ou_persistent22              
3CFEL, Hamburg, Germany, ou_persistent22              
4Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938288              

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 Abstract: We report the first experimental demonstration of linear electron acceleration using an optically generated singlecycle THz pulse centered at 0.45 THz. 7 keV of acceleration is achieved using 10 μJ THz pulses in a 3 mm interaction length. The THz pulse is produced via optical rectification of a 1.2 mJ, 1 μm laser pulse with a 1 kHz repetition rate. The THz pulse is coupled into a dielectric-loaded circular waveguide with 10 MeV/m on-axis accelerating gradient. A 25 fC input electron bunch is produced with a 60 keV DC photo-emitting cathode. The achievable accelerating gradient in the THz structures being investigated will scale rapidly by increasing the IR pulse energy (100 mJ - 1 J) and correspondingly the THz pulse energy. Additionally, with recent advances in the generation of THz pulses via optical rectification, in particular improvements to efficiency and generation of multi-cycle pulses, GeV/m accelerating gradients could be achieved. An ultra-compact high-gradient THz accelerator would be of interest for a wide variety of applications.

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Language(s): eng - English
 Dates: 2014-07
 Publication Status: Published online
 Pages: 4
 Publishing info: -
 Table of Contents: -
 Rev. Type: Internal
 Identifiers: -
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Title: IPAC2014: 5th International Particle Accelerator Conference
Place of Event: Dresden, Germany
Start-/End Date: 2014-06-15 - 2014-06-20

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Title: IPAC2014: Proceedings of the 5th International Particle Accelerator Conference
Source Genre: Proceedings
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Publ. Info: Geneva, Switzerland : Joint Accelerator Conferences Website JACoW
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 1896 - 1899 Identifier: ISBN: 978-3-95450-132-8