Characterization of laser-driven proton beams from near-critical density targets using copper activation
Abstract
In this study, copper activation was used to characterize high-energy proton beam acceleration from near-critical density plasma targets. An enhancement was observed when decreasing the target density, which is indicative for an increased laser-accelerated hot electron density at the rear target-vacuum boundary. This is due to channel formation and collimation of the hot electrons inside the target. Particle-in-cell simulations support the experimental observations and show the correlation between channel depth and longitudinal electric field strength is directly correlated with the proton acceleration.
- Authors:
-
- Univ. of Michigan, Ann Arbor, MI (United States). Center for Ultrafast Optical Science
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Central Laser Facility, Rutherford Appleton Laboratory, Chilton (United Kingdom)
- Imperial College, London (United Kingdom). Blackett Laboratory, The John Adams Institute for Accelerator Science
- Institut für Optik und Quantenelektronik, Jena (Germany); Helmholtz Institute Jena (Germany)
- Imperial College, London (United Kingdom). Blackett Laboratory, The John Adams Institute for Accelerator Science; GoLP, Instituto Superior Tecnico, Lisbon (Portugal)
- University of St Andrews (United Kingdom). High Energy Laser Materials R&D Laboratory
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1458670
- Report Number(s):
- LLNL-JRNL-741116
Journal ID: ISSN 0022-3778; applab; 895370; TRN: US1901499
- Grant/Contract Number:
- AC52-07NA27344
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Plasma Physics
- Additional Journal Information:
- Journal Volume: 81; Journal Issue: 01; Journal ID: ISSN 0022-3778
- Publisher:
- Cambridge University Press
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Willingale, L., Nagel, S. R., Thomas, A. G. R., Bellei, C., Clarke, R. J., Dangor, A. E., Heathcote, R., Kaluza, M. C., Kamperidis, C., Kneip, S., Krushelnick, K., Lopes, N., Mangles, S. P. D., Nazarov, W., Nilson, P. M., and Najmudin, Z. Characterization of laser-driven proton beams from near-critical density targets using copper activation. United States: N. p., 2014.
Web. doi:10.1017/S002237781400066X.
Willingale, L., Nagel, S. R., Thomas, A. G. R., Bellei, C., Clarke, R. J., Dangor, A. E., Heathcote, R., Kaluza, M. C., Kamperidis, C., Kneip, S., Krushelnick, K., Lopes, N., Mangles, S. P. D., Nazarov, W., Nilson, P. M., & Najmudin, Z. Characterization of laser-driven proton beams from near-critical density targets using copper activation. United States. https://doi.org/10.1017/S002237781400066X
Willingale, L., Nagel, S. R., Thomas, A. G. R., Bellei, C., Clarke, R. J., Dangor, A. E., Heathcote, R., Kaluza, M. C., Kamperidis, C., Kneip, S., Krushelnick, K., Lopes, N., Mangles, S. P. D., Nazarov, W., Nilson, P. M., and Najmudin, Z. Fri .
"Characterization of laser-driven proton beams from near-critical density targets using copper activation". United States. https://doi.org/10.1017/S002237781400066X. https://www.osti.gov/servlets/purl/1458670.
@article{osti_1458670,
title = {Characterization of laser-driven proton beams from near-critical density targets using copper activation},
author = {Willingale, L. and Nagel, S. R. and Thomas, A. G. R. and Bellei, C. and Clarke, R. J. and Dangor, A. E. and Heathcote, R. and Kaluza, M. C. and Kamperidis, C. and Kneip, S. and Krushelnick, K. and Lopes, N. and Mangles, S. P. D. and Nazarov, W. and Nilson, P. M. and Najmudin, Z.},
abstractNote = {In this study, copper activation was used to characterize high-energy proton beam acceleration from near-critical density plasma targets. An enhancement was observed when decreasing the target density, which is indicative for an increased laser-accelerated hot electron density at the rear target-vacuum boundary. This is due to channel formation and collimation of the hot electrons inside the target. Particle-in-cell simulations support the experimental observations and show the correlation between channel depth and longitudinal electric field strength is directly correlated with the proton acceleration.},
doi = {10.1017/S002237781400066X},
journal = {Journal of Plasma Physics},
number = 01,
volume = 81,
place = {United States},
year = {Fri Sep 05 00:00:00 EDT 2014},
month = {Fri Sep 05 00:00:00 EDT 2014}
}
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