Flat electron beam sources for DLA accelerators
Abstract
In this study we discuss the application of the flat beam transform to generate beams suitable for injection into slab-symmetric dielectric laser-driven accelerators (DLAs). A study of the focusing requirements to keep the particles within the tight apertures characterizing these accelerators shows the benefits of employing ultralow beam emittances. The slab geometry of the many dielectric accelerating structures strongly favors the use of flat beams with large ratio between vertical and horizontal emittances. We employ particle tracking simulations to study the application of the flat beam transform for two injector designs, a DC non relativistic photogun and a 1.6 cell S-band RF photoinjector, obtaining in both cases emittance ratios between the horizontal and vertical plane in excess of 100 in agreement with simple analytical estimates. The 4 MeV RF photoinjector study-case can be directly applied to the UCLA Pegasus beamline and shows normalized emittances down to < 3 nm in the vertical dimension for beam charges up to 20 fC, enabling a two-stage DLA experiment.
- Authors:
-
- UCLA, Los Angeles, CA (United States)
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1390726
- Alternate Identifier(s):
- OSTI ID: 1550691
- Grant/Contract Number:
- 145583; GBMF4744, and the U.S. Department of Energy grant SC0009914; 1535711; AC02-76SF00515; FG02-13ER41970; GBMF4744; SC0009914
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Additional Journal Information:
- Journal Volume: 865; Journal Issue: C; Journal ID: ISSN 0168-9002
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; Flat Beam Transformation; Dielectric Laser-Driven Acceleration
Citation Formats
Ody, A., Musumeci, P., Maxson, J., Cesar, D., England, R. J., and Wootton, K. P. Flat electron beam sources for DLA accelerators. United States: N. p., 2016.
Web. doi:10.1016/j.nima.2016.10.041.
Ody, A., Musumeci, P., Maxson, J., Cesar, D., England, R. J., & Wootton, K. P. Flat electron beam sources for DLA accelerators. United States. https://doi.org/10.1016/j.nima.2016.10.041
Ody, A., Musumeci, P., Maxson, J., Cesar, D., England, R. J., and Wootton, K. P. Wed .
"Flat electron beam sources for DLA accelerators". United States. https://doi.org/10.1016/j.nima.2016.10.041. https://www.osti.gov/servlets/purl/1390726.
@article{osti_1390726,
title = {Flat electron beam sources for DLA accelerators},
author = {Ody, A. and Musumeci, P. and Maxson, J. and Cesar, D. and England, R. J. and Wootton, K. P.},
abstractNote = {In this study we discuss the application of the flat beam transform to generate beams suitable for injection into slab-symmetric dielectric laser-driven accelerators (DLAs). A study of the focusing requirements to keep the particles within the tight apertures characterizing these accelerators shows the benefits of employing ultralow beam emittances. The slab geometry of the many dielectric accelerating structures strongly favors the use of flat beams with large ratio between vertical and horizontal emittances. We employ particle tracking simulations to study the application of the flat beam transform for two injector designs, a DC non relativistic photogun and a 1.6 cell S-band RF photoinjector, obtaining in both cases emittance ratios between the horizontal and vertical plane in excess of 100 in agreement with simple analytical estimates. The 4 MeV RF photoinjector study-case can be directly applied to the UCLA Pegasus beamline and shows normalized emittances down to < 3 nm in the vertical dimension for beam charges up to 20 fC, enabling a two-stage DLA experiment.},
doi = {10.1016/j.nima.2016.10.041},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 865,
place = {United States},
year = {Wed Oct 26 00:00:00 EDT 2016},
month = {Wed Oct 26 00:00:00 EDT 2016}
}
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Works referencing / citing this record:
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