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Goel, P. S.; Narasappaya, N.; Prabhakara, C.; Thor, Rama; Zutshi, P. K. (2011)
Publisher: Co-Action Publishing
Journal: Tellus A
Languages: English
Types: Article
Subjects:
The fall-out rate of four short-lived isotopes P32, P33, Be7 and S35, produced in the collisions of cosmic ray particles with air nuclei, has been measured at a number of stations in India and compared with the calculated rate of production. In the case of Be7, the agreement between the calculated and measured values is good. The fall-out rates of P32 and P33 are not inconsistent with the calculated values; that of S35, however, is about five times higher than expected. The absolute concentrations of an individual isotope in various rain falls have been found to vary by more than a factor of forty; relative concentrations of the different isotopes, however, stayed within fairly narrow limits. The ratio of the concentration of the isotope Be7 to that of the isotope P32 in individual rain samples has been used to find out the periods for which various air masses had been irradiated in the interval between two successive precipitations. The mean period of irradiation is found to be about thirty-five days. Our results are consistent with the view that, in these tropical latitudes, intrusions of stratospheric air into the troposphere are either rare or weak in intensity. The method seems capable of further development as a tool for studying meteorological problems.DOI: 10.1111/j.2153-3490.1959.tb00008.x
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • 2. Correction for Self-Absorption: The self-absorption factor for S a 5 betas was similarly determined by using BaSO, containing artlficial S35.
    • 3. Correction for External Absorption: FALTINGVS,. and HARTECKP.,, 1950: The Tritium Concentration in the Atmosphere. Z . Naturforschung, ga, PP. 438-439.
    • GOEL, P. S., JHA, S., LAL,D., RADHAKUSHNPA.,and RAMA,1956: Cosmic Ray Produced Beryllium Isotopes in Rain Water. Nuclear Physics, I, pp. 196-201.
    • GOEL,P. S., 1956: Radio-active Sulphur Produced by Cosmic Rays in Rain Water. Nature, 178,pp. 1458- 1459.
    • LAL,D., NARASAPPAYNA.,and ZUTSHI,P. K., 1957: Phosphorus Isotopes Par and Pas in Rain Water. Nuclear Physics, 3, pp. 69-73.
    • LAL,D., MALHOTRPA., K. and PETERSB,., 1958: On the Production of Radio Isotopes in the Atmosphere by Cosmic Radiation and their Application to Meteorol0gy.J. Atmosph. Terr. Phys., 12. pp. 306-328.
    • MARQUEZL., and COSTAN,. L., 1955: The Formation of Pazfrom Atmospheric Argon by Cosmic Rays. Nuovo Cimento, 2, pp. 1038-1041.
    • MARQUEZL,., COSTAN,. L. and ALMEIDAI,. G., 1957: The Formation of Naez from Atmospheric Argon by Cosmic Rays. Nuovo Cimento, 6 , p. 1292.
    • PETERSB,., 1957: The Be'” Method for studying long term changes in Cosmic Radiation and the Chronology of the Ocean Floor. Zeitschri)ftur Physik, 148. pp. 93-111, ( i n German).
    • PETERSB,., 1958: T o be published.
    • STEWARTN, . G., OSMONDR,. G. D., CROOKSR, . N. and FISHERE,. M., 1957:The World WideDeposition of Long-Lived Fission Products from Nuclear Test Explosions. A.E.R.E. HPIR 2354.
    • THORR,. and ZUTSHI,P. K., 1958: Deposition of Cosmic Ray Produced Be' at Equatorial Latitudes. Tellus, 10.
    • pp. 99-103.
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  • Discovered through pilot similarity algorithms. Send us your feedback.

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