A MULTI-COMPARTMENT MIXING-TYPE CLOUD CHAMBER FOR SIMULTANEOUS DETERMINATION OF ICE-NUCLEUS CONCENTRATION AT VARIOUS TEMPERATURES

Abstract

A cloud chamber for inv tiga ing the ice-forming properties of natural and artificial aerosols consisting of three adjacent compartment is described. Each compartment is a mixing-type cloud chamber, each held t a different preselected temperature. The sample to be examined is introduced simultaneously into all compartments and the crystals which form in the compartmen s, are recorde in a sugar solution. The temperature distribution in the co partments and the composition of the sugar solution are detailed. The connection between the temperature of the sugar solution for melting and growing of ice crystals and for self-crystalisation of the sugar solution and the concentration of the sugar solution is discussed. T E MEASURING PROCEDURE IS OUTLINED AND EXAMPLES OF COUNTS OF FREEZING NUCLEI IN Dublin air are given. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1962
Accession Number
AD0282777

Entities

People

  • A.l. Metnieks
  • L.w. Pollak

Tags

DTIC Thesaurus Topics

  • Chambers
  • Cloud Chambers
  • Critical Temperature
  • Freezing
  • Glass Transition Temperature
  • Transition Temperature

Readers

  • Aerosol Science/Aerosol Physics
  • Polar and Arctic Studies
  • Snow Cover Descriptors for Reptiles and Their Illustrations.