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Scientific and Technical Aerospace Reports Volume 38 July 28, 2000

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<strong>2000</strong>0065646 Joint Inst. for Nuclear Research, Frank Lab. of Neutron Physics, Dubna, USSR<br />

Cosmic rays - possible generator of electrostatic field in earth atmosphere<br />

Matora, I. M.; Semenova, I. A.; Shakun, N. G.; Shishlyannikov, P.; Dec. 31, 1998; 11p; In Russian; In English<br />

Report No.(s): DE99-607983; JINR-R-1-98-68; No Copyright; Avail: Department of Energy Information Bridge<br />

Closeness to the 1 probability of an inversion of the total electric current, generated by the primary relativistic protons <strong>and</strong><br />

other hadrons of cosmic rays (CR), from positive at the entrance into the atmosphere to negative at the earth surface is shown.<br />

The inversion appears as a result of the fact that the penetration ability of the shower electrons, the direction of the velocities of<br />

which is close to that of the primary CR flow, exceeds the paths of the secondary positive ions by more than one order of magnitude.<br />

NTIS<br />

Cosmic Rays; Electrostatic Generators; Electric Fields<br />

<strong>2000</strong>0065673 Joint Inst. for Nuclear Research, Bogolyubov Lab. of Theoretical Physics, Dubna, USSR<br />

Possible estimation of atmospheric Cherenkov light parameters<br />

Aleks<strong>and</strong>rov, L.; Brankova, M.; Kirov, I.; Mavrodiev, S.; Mishev, A.; Dec. 31, 1998; 15p; In English<br />

Report No.(s): DE99-607977; JINR-E-2-98-48; No Copyright; Avail: Department of Energy Information Bridge<br />

A method for analysis of extensive air showers initiated by primary gamma quanta of primary protons <strong>and</strong> nuclei in the atmosphere<br />

is presented. The method is based on measuring of Cherenkov light distribution in showers. A new approximation of the<br />

lateral <strong>and</strong> radial distributions is obtained on the basis of a nonlinear overdetermined inverse problem solution. The concrete mathematical<br />

model is created by analysis of recent measurements carried out by the Cherenkov wide angle timing telescope<br />

HOTOVO. The model is tested on simulated data obtained with the code CORSIKA. The method is applied to different sets of<br />

detectors of CELESTE array. A new detector array for optimal estimation of Cherenkov flux parameters is proposed.<br />

NTIS<br />

Meteorological Parameters; Cosmic Ray Showers<br />

234

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