Astrophysics and Space Science

, Volume 199, Issue 2, pp 293–297 | Cite as

Estimation of the sub-iron-iron flux ratio in cosmic rays over alice springs using a balloon flight experiment with a CR-39 detector

  • D. P. Bhattacharyya
  • Basudhara Basu
  • Pratibha Pal
Article

Abstract

The sub-iron-iron flux ratio in cosmic rays at an atmospheric depth of 9.8 g cm−2 has been estimated using a balloon-borne CR-39 (HCB) stack launched from Alice Springs for 32 hours. The recovered and chemically etched plates were analysed optically and the measured etch pit diameters yielded the sub-iron-iron flux ratio at the flight altitude. The sub-iron-iron flux ratio has been corrected for the top of the atmosphere by considering the loss of heavy ions due to nuclear interaction and fragmentation. The present result has been compared with the result expected from the source composition derived by Protheroeet al. as well as other authors.

Keywords

Atmosphere Flux Ratio Nuclear Interaction Flight Experiment Flight Altitude 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 1993

Authors and Affiliations

  • D. P. Bhattacharyya
    • 1
  • Basudhara Basu
    • 1
  • Pratibha Pal
    • 1
  1. 1.Department of Theoretical PhysicsIndian Association for the Cultivation of ScienceJadavpur, CalcuttaIndia

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