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Experimental Study of Variation of Secondary Cosmic Gamma Ray Flux during Total Lunar Eclipse April 4, 1996 and July 16, 2000

Author Affiliations

  • 1Department of Physics, B.N.P.G. College, M.L. Sukhadia University, Udaipur, INDIA
  • 2 Department of Physics, M.L. Sukhadia University, Udaipur, INDIA

Res. J. Physical Sci., Volume 1, Issue (4), Pages 22-27, May,4 (2013)

Abstract

We report the observations of variation of secondary cosmic gamma ray flux near 2.57 MeV energy during April 4, 1996 Total Lunar Eclipse and energies near 1.31 MeV, 1.618 MeV, 2.57 MeV during July 16, 2000 Total Lunar Eclipse. For our experimental studies, we used scintillation counter to detect secondary cosmic gamma ray flux in the energy range of 10 keV to 5 MeV. We interpret the variation of secondary cosmic gamma ray flux at some energies on the basis of phenomenon of bending primary cosmic ray and solar energetic particle by magnetic field of the Sun and the interplanetary magnetic field, combined gravitational leasing effect of Sun and Earth, may cause strong impact on the air less surface of the Moon and produced secondary particle flux from bared surface of the Moon (mostly gamma ray, high energy photo electron, hard x-rays, muons, Protons, neutrons) may be regarded as back scattering form the Moon surface and energy of backscattered Secondary flux is so large enough that gives such variation during Lunar eclipse observation. Also the bent primary cosmic ray and solar energetic particle impinges deep inside the atmosphere of the Earth which produces shower of secondary cosmic ray particles. These collectively effects gave variation of secondary cosmic gamma ray flux at near 2.57 MeV energy during April 4, 1996 Total Lunar Eclipse and energies near 1.31 MeV, 1.618 MeV, 2.57 MeV during July 16, 2000 Total Lunar Eclipse.

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