Auroral Bremsstrahlung at Balloon AltitudesScientific and Technical Information Office, National Aeronautics and Space Administration, 1973 - Auroras - 25 pages |
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Auroral Bremsstrahlung at Balloon Altitudes Stephen M. Seltzer,Martin J. Berger,Theodore J. Rosenberg No preview available - 1973 |
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10-10 wwwwww wwwww 13 atmospheric depths AERONAUTICS AND SPACE atmosphere was assumed beams with exponential brems BREMSSTRAHLUNG AT BALLOON bremsstrahlung flux spec bremsstrahlung flux spectrum bremsstrahlung penetration bremsstrahlung photon energy calculations depth of 3.0 depth of 8.0 depth z depths between 3.0 Differential bremsstrahlung flux downward hemisphere Downward-directed bremsstrahlung e-folding energy electrons precipitated exponential distribution EXPONENTIAL ENERGY SPECTRA exponential spectra Figure 1(a g/cm² To keV incident electron beams incident electron current incident electron spectrum Integral bremsstrahlung flux isotropic k(keV keV ¹ wwwwww keV Figure keV-¹ For atmospheric kev¹ NASA SP-3081 AURORAL NATIONAL AND U.S.A. percent photon energy k Pilkington and Anger quantity plotted Seltzer sodium-iodide detectors SP-3081 AURORAL BREMSSTRAHLUNG SPACE ADMINISTRATION spectra at 13 spectra divided spectral energy spectrum per unit strahlung Table 1 continued To(keV trum U.S.A. SPACE unit incident electron units of keV-1 wide-area precipitation wwww wwwwww wwww Þª/j Þd/j سلسل لسي مسلسل