Prepulse dependence in hard x-ray generation from microdroplets

M. Anand, Arvinder Singh Sandhu, S. Kahaly, G. Ravindra Kumar, P. Gibbon, M. Krishnamurthy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report on experiments which show that liquid microdroplets are very efficient in hard x-ray generation. We make a comparative study of hard x-ray emission from 15 μm methanol microdroplets and a plain slab target of similar atomic composition at similar laser intensities. The hard X-ray yield from droplet plasmas is about 35 times more than that obtained from solid plasmas. A prepulse that is about 10ns and at least 2% in intensity of the main pulse is essential for hard x-ray generation from the droplets at about 10 15 W cm -2. A hot electron temperature of 36 keV is measured from the droplets at 8 × 10 14 W cm -2; three times higher intensity is needed to obtain similar hot electron temperature from solid plasmas that have similar atomic composition. We use 1D-PIC simulation to obtain qualitative correlation to the experimental observations.

Original languageEnglish (US)
Title of host publicationAIP Conference Proceedings
Pages493-498
Number of pages6
Volume827
DOIs
StatePublished - Apr 7 2006
Externally publishedYes
Event3rd International Conference on Superstrong Fields in Plasmas - Varenna, Italy
Duration: Sep 19 2005Sep 24 2005

Other

Other3rd International Conference on Superstrong Fields in Plasmas
CountryItaly
CityVarenna
Period9/19/059/24/05

Fingerprint

hot electrons
x rays
electron energy
plains
slabs
methyl alcohol
liquids
pulses
lasers
simulation

Keywords

  • Intense laser
  • Liquid droplets
  • Plasma
  • X-ray generation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Anand, M., Sandhu, A. S., Kahaly, S., Kumar, G. R., Gibbon, P., & Krishnamurthy, M. (2006). Prepulse dependence in hard x-ray generation from microdroplets. In AIP Conference Proceedings (Vol. 827, pp. 493-498) https://doi.org/10.1063/1.2195241

Prepulse dependence in hard x-ray generation from microdroplets. / Anand, M.; Sandhu, Arvinder Singh; Kahaly, S.; Kumar, G. Ravindra; Gibbon, P.; Krishnamurthy, M.

AIP Conference Proceedings. Vol. 827 2006. p. 493-498.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Anand, M, Sandhu, AS, Kahaly, S, Kumar, GR, Gibbon, P & Krishnamurthy, M 2006, Prepulse dependence in hard x-ray generation from microdroplets. in AIP Conference Proceedings. vol. 827, pp. 493-498, 3rd International Conference on Superstrong Fields in Plasmas, Varenna, Italy, 9/19/05. https://doi.org/10.1063/1.2195241
Anand M, Sandhu AS, Kahaly S, Kumar GR, Gibbon P, Krishnamurthy M. Prepulse dependence in hard x-ray generation from microdroplets. In AIP Conference Proceedings. Vol. 827. 2006. p. 493-498 https://doi.org/10.1063/1.2195241
Anand, M. ; Sandhu, Arvinder Singh ; Kahaly, S. ; Kumar, G. Ravindra ; Gibbon, P. ; Krishnamurthy, M. / Prepulse dependence in hard x-ray generation from microdroplets. AIP Conference Proceedings. Vol. 827 2006. pp. 493-498
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