Bright source of K [alpha] and continuum X rays by heating Kr clusters using a femtosecond laser

R.C. Issac, J. Wirthig, E. Brunetti, G. Vieux, B. Ersfeld, S.P. Jamison, D. Jones, R. Bingham, D. Clark, D.A. Jaroszynski

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

X rays emitted from Kr clusters illuminated by a femtosecond laser have been observed over a wide spectral region from 3 keV to 15 keV. The measured spectra are characterized by a broad bremsstrahlung continuum and K[alpha], [beta] lines at 12.66 keV and 14.1 keV. To the best of the authors' knowledge, this is the first observation of K[alpha], [beta] emission from laser-heated Kr clusters. The bremsstrahlung continuum arising from collisions in the plasma implies a population of hot electrons consistent with a temperature of several kiloelectron volts. The absolute X-ray yield in the 3-15 keV region is found to be of the order of 107 photons per laser pulse. The plasma temperature, estimated from the continuum part of the spectrum as a function of laser intensity and X-ray yield as a function of laser pulse duration, are studied.
LanguageEnglish
Pages535-540
Number of pages5
JournalLaser and Particle Beams
Volume21
Issue number4
DOIs
Publication statusPublished - Dec 2003

Fingerprint

Ultrashort pulses
continuums
Heating
X rays
heating
Laser pulses
lasers
Plasmas
x rays
Hot electrons
Lasers
bremsstrahlung
Photons
plasma temperature
Temperature
hot electrons
pulse duration
collisions
photons
pulses

Keywords

  • cluster nanoplasma
  • intense lasers
  • rare gas clusters
  • X-ray generation

Cite this

@article{45850ff5577345f7ad506b75aa5d0959,
title = "Bright source of K [alpha] and continuum X rays by heating Kr clusters using a femtosecond laser",
abstract = "X rays emitted from Kr clusters illuminated by a femtosecond laser have been observed over a wide spectral region from 3 keV to 15 keV. The measured spectra are characterized by a broad bremsstrahlung continuum and K[alpha], [beta] lines at 12.66 keV and 14.1 keV. To the best of the authors' knowledge, this is the first observation of K[alpha], [beta] emission from laser-heated Kr clusters. The bremsstrahlung continuum arising from collisions in the plasma implies a population of hot electrons consistent with a temperature of several kiloelectron volts. The absolute X-ray yield in the 3-15 keV region is found to be of the order of 107 photons per laser pulse. The plasma temperature, estimated from the continuum part of the spectrum as a function of laser intensity and X-ray yield as a function of laser pulse duration, are studied.",
keywords = "cluster nanoplasma, intense lasers, rare gas clusters, X-ray generation",
author = "R.C. Issac and J. Wirthig and E. Brunetti and G. Vieux and B. Ersfeld and S.P. Jamison and D. Jones and R. Bingham and D. Clark and D.A. Jaroszynski",
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year = "2003",
month = "12",
doi = "10.1017/S0263034603214099",
language = "English",
volume = "21",
pages = "535--540",
journal = "Laser and Particle Beams",
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Bright source of K [alpha] and continuum X rays by heating Kr clusters using a femtosecond laser. / Issac, R.C.; Wirthig, J.; Brunetti, E.; Vieux, G.; Ersfeld, B.; Jamison, S.P.; Jones, D.; Bingham, R.; Clark, D.; Jaroszynski, D.A.

In: Laser and Particle Beams, Vol. 21, No. 4, 12.2003, p. 535-540.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Bright source of K [alpha] and continuum X rays by heating Kr clusters using a femtosecond laser

AU - Issac, R.C.

AU - Wirthig, J.

AU - Brunetti, E.

AU - Vieux, G.

AU - Ersfeld, B.

AU - Jamison, S.P.

AU - Jones, D.

AU - Bingham, R.

AU - Clark, D.

AU - Jaroszynski, D.A.

N1 - Strathprints' policy is to record up to 8 authors per publication, plus any additional authors based at the University of Strathclyde. More authors may be listed on the official publication than appear in the Strathprints' record.

PY - 2003/12

Y1 - 2003/12

N2 - X rays emitted from Kr clusters illuminated by a femtosecond laser have been observed over a wide spectral region from 3 keV to 15 keV. The measured spectra are characterized by a broad bremsstrahlung continuum and K[alpha], [beta] lines at 12.66 keV and 14.1 keV. To the best of the authors' knowledge, this is the first observation of K[alpha], [beta] emission from laser-heated Kr clusters. The bremsstrahlung continuum arising from collisions in the plasma implies a population of hot electrons consistent with a temperature of several kiloelectron volts. The absolute X-ray yield in the 3-15 keV region is found to be of the order of 107 photons per laser pulse. The plasma temperature, estimated from the continuum part of the spectrum as a function of laser intensity and X-ray yield as a function of laser pulse duration, are studied.

AB - X rays emitted from Kr clusters illuminated by a femtosecond laser have been observed over a wide spectral region from 3 keV to 15 keV. The measured spectra are characterized by a broad bremsstrahlung continuum and K[alpha], [beta] lines at 12.66 keV and 14.1 keV. To the best of the authors' knowledge, this is the first observation of K[alpha], [beta] emission from laser-heated Kr clusters. The bremsstrahlung continuum arising from collisions in the plasma implies a population of hot electrons consistent with a temperature of several kiloelectron volts. The absolute X-ray yield in the 3-15 keV region is found to be of the order of 107 photons per laser pulse. The plasma temperature, estimated from the continuum part of the spectrum as a function of laser intensity and X-ray yield as a function of laser pulse duration, are studied.

KW - cluster nanoplasma

KW - intense lasers

KW - rare gas clusters

KW - X-ray generation

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DO - 10.1017/S0263034603214099

M3 - Article

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