Eur. Phys. J. AP 14, 137-141 (2001)
https://doi.org/10.1051/epjap:2001149

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

Received: 31 July 2000
Revised: 7 December 2000
Accepted: 7 December 2000
Published online: 15 May 2001

Abstract

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.