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


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.


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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  1. Bhatia, V. S. and Singh, G.: 1980,Astrophys. Space Sci. 69, 461.Google Scholar
  2. Bhattacharyya, D. P., Basu, B., Pal, P., Chakrabarty, S., and Fujii, M.: 1991,Nuovo Cimento 14C, 91.Google Scholar
  3. Biswas, S., Nevatia, J., Durgaprasad, N., and Venkatavaradan, V. S.: 1975,Nature (London) 258, 409.Google Scholar
  4. Biswas, S., Durgaprasad, N., Mitra, B., Singh, R. K., Vahia, M. N., Yadav, J. S., Dutta, A., and Goswami, J. N.: 1988,Adv. Space Res. 9, 25.Google Scholar
  5. Durgaprasad, N. and Biswas, S.: 1988,Astrophys. Space Sci. 149, 163.Google Scholar
  6. Durgaprasad, N., Mitra, B., Singh, R. K., Biswas, S., Dutta, A., and Goswami, J. N.: 1990,Proc. XXI Int. Cosmic Ray Conf., Adelaide 3, 389.Google Scholar
  7. Engelmann, J.J., Goret, P., Juliusson, E., Koch-Miramond, L., Massey, P., Soutoul, A., Byrnak, B., Lund, N., Peters, B., Rasmussen, I. L., Rotenberg, M., and Westergaard, M. J.: 1983,Proc. XVII Int. Cosmic Ray Conf., Bangalore 2, 17.Google Scholar
  8. Ferrando, P., Lal, N., McDonald, F. B., and Webber, W. R.: 1991,Astron. Astrophys. 247, 163.Google Scholar
  9. Fleischer, R. L., Hart, H. R., Jr., and Renshaw, A.: 1974,General Electric Technical Report, No. CRD-138, Schenectady, New York; [1974,Astrophys. J. 193, 575].Google Scholar
  10. Garcia-Muñoz, M., Guzik, T. G., Simpson, J. A., and Wefel, J. P.: 1984,Astrophys. J. 280, L13.Google Scholar
  11. Garcia-Muñoz, M., Simpson, J. A., Guzik, T. G., Wefel, J. P., and Margolis, S. H.: 1987,Astrophys. J. Suppl. 64, 269.Google Scholar
  12. Lezniak, J. A. and Webber, W. R.: 1978,Astrophys. J. 223, 676.Google Scholar
  13. Lezniak, J. A. and Webber, W. R.: 1979,Astrophys. Space Sci. 63, 35.Google Scholar
  14. Maehl, R. C., Ormes, J., Fisher, A. J., and Hagen, F. A.: 1977,Astrophys. Space Sci. 47, 163.Google Scholar
  15. Margolis, S. H. and Bussard, R. W.: 1983,Proc. XVIII Int. Cosmic Ray Conf., Bangalore 9, 271.Google Scholar
  16. O'Sullivan, D., Thompson, A., and Price, P. B.: 1973,Nature (London) Phys. Sci. 243, 8.Google Scholar
  17. Protheroe, R. J., Ormes, J. F., and Comstock, G. M.: 1981,Astrophys. J. 247, 362.Google Scholar
  18. Ramadurai, S., Vahia, M. N., Yadav, J. S., Biswas, S., and Durgaprasad, N.: 1984,Adv. Space Res. 1, 92.Google Scholar
  19. Soutoul, A., Engelmann, J. J., Ferrando, P. H., Koch-Miramond, L., Massey, P., and Webber, W. R.: 1985,Proc. XIX Int. Cosmic Ray Conf., La Jolla 2, 8.Google Scholar
  20. Webber, W. R.: 1982,Astrophys. J. 252, 386.Google Scholar
  21. Wilson, J. W., Townsend, L. W., and Badavi, F. F.: 1987,Nucl. Instr. Methods B18, 225.Google Scholar
  22. Young, J. S., Freier, P. S., Waddington, C. J., Brewster, N. C., and Fickle, R. K.: 1981,Astrophys. J. 246, 1014.Google Scholar

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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