Temporal and spectral dependence of samarium X-ray emission in subpicosecond and nanosecond laser-produced plasmas

Claude Chenais-Popovics; P. Audebert; M. Fajardo; R. Sheperd; O. Peyrusse; J. C. Gauthier

doi:10.1117/12.448473

Temporal and spectral dependence of samarium X-ray emission in subpicosecond and nanosecond laser-produced plasmas

Claude Chenais-Popovics
, P. Audebert
, M. Fajardo
, R. Sheperd
, O. Peyrusse
, J. C. Gauthier

Research output: Contribution to journal › Article › peer-review

Abstract

Ultra-short X-ray sources are generated by focusing sub-picosecond lasers on massive targets. The emission duration of a samarium X-ray source produced with a 100 TW sub-picosecond laser was measured using an ultra-fast X-ray streak camera. The spectral range was limited around 7.5-8.5 Å, the range in which samarium can be used as a backlighter for Kα aluminum absorption experiments. The spectral time-evolution and the duration of samarium emission were measured. Preliminary calculations performed with non-local-thermodynamic equilibrium atomic physics show the plasma cooling which occurs with a characteristic time longer than predicted by radiative hydrocode simulaitons.

Original language	English
Pages (from-to)	194-197
Number of pages	4
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4504
DOIs	https://doi.org/10.1117/12.448473
Publication status	Published - 1 Jan 2001

Keywords

Absorption spectroscopy
Laser-produced-plasma
Subpicosecond resolution
X-ray source

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title = "Temporal and spectral dependence of samarium X-ray emission in subpicosecond and nanosecond laser-produced plasmas",

abstract = "Ultra-short X-ray sources are generated by focusing sub-picosecond lasers on massive targets. The emission duration of a samarium X-ray source produced with a 100 TW sub-picosecond laser was measured using an ultra-fast X-ray streak camera. The spectral range was limited around 7.5-8.5 {\AA}, the range in which samarium can be used as a backlighter for Kα aluminum absorption experiments. The spectral time-evolution and the duration of samarium emission were measured. Preliminary calculations performed with non-local-thermodynamic equilibrium atomic physics show the plasma cooling which occurs with a characteristic time longer than predicted by radiative hydrocode simulaitons.",

keywords = "Absorption spectroscopy, Laser-produced-plasma, Subpicosecond resolution, X-ray source",

author = "Claude Chenais-Popovics and P. Audebert and M. Fajardo and R. Sheperd and O. Peyrusse and Gauthier, \{J. C.\}",

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doi = "10.1117/12.448473",

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T1 - Temporal and spectral dependence of samarium X-ray emission in subpicosecond and nanosecond laser-produced plasmas

AU - Chenais-Popovics, Claude

AU - Audebert, P.

AU - Fajardo, M.

AU - Sheperd, R.

AU - Peyrusse, O.

AU - Gauthier, J. C.

PY - 2001/1/1

Y1 - 2001/1/1

N2 - Ultra-short X-ray sources are generated by focusing sub-picosecond lasers on massive targets. The emission duration of a samarium X-ray source produced with a 100 TW sub-picosecond laser was measured using an ultra-fast X-ray streak camera. The spectral range was limited around 7.5-8.5 Å, the range in which samarium can be used as a backlighter for Kα aluminum absorption experiments. The spectral time-evolution and the duration of samarium emission were measured. Preliminary calculations performed with non-local-thermodynamic equilibrium atomic physics show the plasma cooling which occurs with a characteristic time longer than predicted by radiative hydrocode simulaitons.

AB - Ultra-short X-ray sources are generated by focusing sub-picosecond lasers on massive targets. The emission duration of a samarium X-ray source produced with a 100 TW sub-picosecond laser was measured using an ultra-fast X-ray streak camera. The spectral range was limited around 7.5-8.5 Å, the range in which samarium can be used as a backlighter for Kα aluminum absorption experiments. The spectral time-evolution and the duration of samarium emission were measured. Preliminary calculations performed with non-local-thermodynamic equilibrium atomic physics show the plasma cooling which occurs with a characteristic time longer than predicted by radiative hydrocode simulaitons.

KW - Absorption spectroscopy

KW - Laser-produced-plasma

KW - Subpicosecond resolution

KW - X-ray source

UR - https://www.scopus.com/pages/publications/0035766811

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DO - 10.1117/12.448473

M3 - Article

AN - SCOPUS:0035766811

SN - 0277-786X

VL - 4504

SP - 194

EP - 197

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

ER -

Temporal and spectral dependence of samarium X-ray emission in subpicosecond and nanosecond laser-produced plasmas

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Keywords

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