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Title: Influence of hot electrons on the spectra of iron plasma irradiated by femtosecond laser pulses with 10 21 W/cm 2 intensities

Abstract

Abstract The use of laboratory experiments as plasma creating sources is a valuable tool for understanding astrophysical observations. Recently plasma created through irradiation by lasers with relativistic intensities has been used to study effects of hot electrons and X-ray pumping on X-ray formation of multiply charged ions spectra. This paper discusses the formation ofK-shell Fe spectra recorded from a plasma irradiated by 35 fs pulses with intensities of 10 21W/cm 2. Modeling of the spectra suggests three different regions of plasma radiation including a cold ~10 eV region, a mild ~700 eV region, and a hot ~3500 eV region. The influence of hot electrons and X-ray pumping is discussed and a comparison withK-shell Fe spectra from a 1 MA X-pinch experiment is included to highlight the differences due to the shorter time frame of the laser–plasma interaction experiment.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
World Institute for Nuclear Security, Vienna, AT (United States); Univ. of Nevada, Reno, NV (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1534403
DOE Contract Number:  
NA0001987; NA0003047
Resource Type:
Journal Article
Journal Name:
Laser and Particle Beams
Additional Journal Information:
Journal Volume: 35; Journal Issue: 1; Journal ID: ISSN 0263-0346
Publisher:
Cambridge University Press
Country of Publication:
United States
Language:
English
Subject:
Physics

Citation Formats

Stafford, A., Safronova, A. S., Faenov, A. Ya., Pikuz, T. A., Kodama, R., Kantsyrev, V. L., Shrestha, I., and Shlyaptseva, V. V. Influence of hot electrons on the spectra of iron plasma irradiated by femtosecond laser pulses with 10 21 W/cm 2 intensities. United States: N. p., 2017. Web. doi:10.1017/s026303461600077x.
Stafford, A., Safronova, A. S., Faenov, A. Ya., Pikuz, T. A., Kodama, R., Kantsyrev, V. L., Shrestha, I., & Shlyaptseva, V. V. Influence of hot electrons on the spectra of iron plasma irradiated by femtosecond laser pulses with 10 21 W/cm 2 intensities. United States. doi:10.1017/s026303461600077x.
Stafford, A., Safronova, A. S., Faenov, A. Ya., Pikuz, T. A., Kodama, R., Kantsyrev, V. L., Shrestha, I., and Shlyaptseva, V. V. Wed . "Influence of hot electrons on the spectra of iron plasma irradiated by femtosecond laser pulses with 10 21 W/cm 2 intensities". United States. doi:10.1017/s026303461600077x.
@article{osti_1534403,
title = {Influence of hot electrons on the spectra of iron plasma irradiated by femtosecond laser pulses with 10 21 W/cm 2 intensities},
author = {Stafford, A. and Safronova, A. S. and Faenov, A. Ya. and Pikuz, T. A. and Kodama, R. and Kantsyrev, V. L. and Shrestha, I. and Shlyaptseva, V. V.},
abstractNote = {Abstract The use of laboratory experiments as plasma creating sources is a valuable tool for understanding astrophysical observations. Recently plasma created through irradiation by lasers with relativistic intensities has been used to study effects of hot electrons and X-ray pumping on X-ray formation of multiply charged ions spectra. This paper discusses the formation ofK-shell Fe spectra recorded from a plasma irradiated by 35 fs pulses with intensities of 1021W/cm2. Modeling of the spectra suggests three different regions of plasma radiation including a cold ~10 eV region, a mild ~700 eV region, and a hot ~3500 eV region. The influence of hot electrons and X-ray pumping is discussed and a comparison withK-shell Fe spectra from a 1 MA X-pinch experiment is included to highlight the differences due to the shorter time frame of the laser–plasma interaction experiment.},
doi = {10.1017/s026303461600077x},
journal = {Laser and Particle Beams},
issn = {0263-0346},
number = 1,
volume = 35,
place = {United States},
year = {2017},
month = {1}
}