Radiative pumping generated by a hot electron {ital K}{alpha} x-ray source in femtosecond laser-produced plasma experiments

Journal Article · Wed May 01 04:00:00 EDT 1996 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.50482· OSTI ID:397275

Rousse, A ^[1]; Geindre, J P; Audebert, P; Fallies, F; Gauthier, J C ^[1]; Santos, A D; Grillon, G; Mysyrowicz, A; Antonetti, A ^[2]

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1. Laboratoire pour l`Utilisation des Lasers Intenses, Ecole Polytechnique, 91128 Palaiseau (France)
2. Laboratoire d`Optique Appliquee, Ecole Nationale des Sciences et Techniques Avancee, 91120 Palaiseau (France)

We demonstrate the first observation of X-ray fluorescence resulting from inner-shell photoionization by a subpicosecond laser-produced plasma x-ray source. 8 keV electrons produced by a 100 fs laser at 3 10{sup 16} Wcm{sup {minus}2} intensity create K-shell vacancies in a Ti layer. This generates a 4.51 keV K{alpha} x-ray pulse which is used to photoionize a Ca sample. Fluorescence of Ca at 3.69 keV (K{alpha}) and 4.01 keV (K{beta}) is observed as a result of Ti K{alpha} photoionization. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 397275
• Report Number(s): CONF-950476--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 369; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CALCIUM
FS RANGE
HOT ELECTRONS
KEV RANGE 01-10
LASER-PRODUCED PLASMA
PHOTOIONIZATION
PHOTOLUMINESCENCE
PULSES
X RADIATION