Eur. Phys. J. AP
Volume 14, Number 2, May 2001
|Page(s)||137 - 141|
|Section||Instrumentation and Metrology|
|Published online||15 May 2001|
Light scattering by a liquid-gas helium spray*
Centre de Recherches sur les Très Basses Températures, Laboratoire associé à
l'Université Joseph Fourier, CNRS, BP 166, 38042 Grenoble Cedex 9, France
Corresponding author: Ipuech@labs.polycnrs-gre.fr
Revised: 7 December 2000
Accepted: 7 December 2000
Published online: 15 May 2001
Light scattering by liquid helium droplets or gaseous helium bubbles is strongly forward. This has two direct experimental consequences: rare scatterers are very bright in a narrow () angular region in the forward direction; and even in the presence of multiple scattering the intensity collected at large angles is linear in the concentration of scatterers. These properties are explained, and the second one is illustrated with a liquid-gas helium spray.
PACS: 87.57.Gg – Image reconstruction and registration / 42.30.Wb – Image reconstruction; tomography / 42.68.Jg – Effects of aerosols
© EDP Sciences, 2001
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