THE HE-3/ (HE-3+HE-4) RATIO IN PRIMARY COSMIC RADIATION

Abstract

The rtio equals He3/ (He3 + He4) is determined using a nuclear emulsion stack exposed at the geomagnetic latitude 61 N on Augut 3, 1958 under 3.8 gms/sq. cm. of matter. The ratio R found at the top of the atmosphere is 0.31 + or - 0.08 for the same energy per nucleon (160-355 ev) and 0.33 + or - 0.08 for the same rigidity (1.05 - 1.48 Bv). These values are lower than a previous observation, but in agreement within the statistical errors, thus implying little or no time variation in the ratio R over a period of one year. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 17, 1961
Accession Number
AD0268348

Entities

People

  • M.v.k. Appa Rao

Tags

DTIC Thesaurus Topics

  • Agreements
  • Atmospheres
  • Cosmic Rays
  • Emulsions
  • Grids
  • Ionizing Radiation
  • Latitude
  • Observation
  • Radiation
  • Rigidity

Fields of Study

  • Physics

Readers

  • Analytical Mechanics
  • Solar Physics