Target surface area effects on hot electron dynamics from high intensity laser–plasma interactions
Abstract
Reduced surface area targets were studied using an ultra-high intensity femtosecond laser in order to determine the effect of electron sheath field confinement on electron dynamics. X-ray emission due to energetic electrons was imaged using a Kα imaging crystal. Electrons were observed to travel along the surface of wire targets, and were slowed mainly by the induced fields. Targets with reduced surface areas were correlated with increased hot electron densities and proton energies. Furthermore, Hybrid Vlasov–Fokker–Planck simulations demonstrated increased electric sheath field strength in reduced surface area targets.
- Authors:
- Publication Date:
- Research Org.:
- Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1257285
- Alternate Identifier(s):
- OSTI ID: 1257287; OSTI ID: 1299137
- Grant/Contract Number:
- NA0002372
- Resource Type:
- Published Article
- Journal Name:
- New Journal of Physics
- Additional Journal Information:
- Journal Name: New Journal of Physics Journal Volume: 18 Journal Issue: 6; Journal ID: ISSN 1367-2630
- Publisher:
- IOP Publishing
- Country of Publication:
- United Kingdom
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; laser-plasma; mass-limited; fast electrons; sheath field
Citation Formats
Zulick, C., Raymond, A., McKelvey, A., Chvykov, V., Maksimchuk, A., Thomas, A. G. R., Willingale, L., Yanovsky, V., and Krushelnick, K. Target surface area effects on hot electron dynamics from high intensity laser–plasma interactions. United Kingdom: N. p., 2016.
Web. doi:10.1088/1367-2630/18/6/063020.
Zulick, C., Raymond, A., McKelvey, A., Chvykov, V., Maksimchuk, A., Thomas, A. G. R., Willingale, L., Yanovsky, V., & Krushelnick, K. Target surface area effects on hot electron dynamics from high intensity laser–plasma interactions. United Kingdom. https://doi.org/10.1088/1367-2630/18/6/063020
Zulick, C., Raymond, A., McKelvey, A., Chvykov, V., Maksimchuk, A., Thomas, A. G. R., Willingale, L., Yanovsky, V., and Krushelnick, K. Wed .
"Target surface area effects on hot electron dynamics from high intensity laser–plasma interactions". United Kingdom. https://doi.org/10.1088/1367-2630/18/6/063020.
@article{osti_1257285,
title = {Target surface area effects on hot electron dynamics from high intensity laser–plasma interactions},
author = {Zulick, C. and Raymond, A. and McKelvey, A. and Chvykov, V. and Maksimchuk, A. and Thomas, A. G. R. and Willingale, L. and Yanovsky, V. and Krushelnick, K.},
abstractNote = {Reduced surface area targets were studied using an ultra-high intensity femtosecond laser in order to determine the effect of electron sheath field confinement on electron dynamics. X-ray emission due to energetic electrons was imaged using a Kα imaging crystal. Electrons were observed to travel along the surface of wire targets, and were slowed mainly by the induced fields. Targets with reduced surface areas were correlated with increased hot electron densities and proton energies. Furthermore, Hybrid Vlasov–Fokker–Planck simulations demonstrated increased electric sheath field strength in reduced surface area targets.},
doi = {10.1088/1367-2630/18/6/063020},
journal = {New Journal of Physics},
number = 6,
volume = 18,
place = {United Kingdom},
year = {Wed Jun 01 00:00:00 EDT 2016},
month = {Wed Jun 01 00:00:00 EDT 2016}
}
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1088/1367-2630/18/6/063020
https://doi.org/10.1088/1367-2630/18/6/063020
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