U 10 Gamma Energy [ MeV

Figure 2.57: Experimental and theoretical differential energy spectra of vertical gamma rays at atmospheric depths of 50 and 100 g/cm2, and a latitude of 40° N (Schonfelder and Lichti, 1975). The curves are drawn to guide the eye.

Schonfelder and Lichti (1975) experimental + Beuermann (1971) calculation o Daniel and Stephens (1974) calculation • Ling (1975) calculation

Figure 2.58: Experimental and theoretical differential energy spectra of vertical gamma rays at atmospheric depths of 200 and 600 g/cm2, and a latitude of 40° N (Schonfelder and Lichti, 1975). The curves are drawn to guide the eye.

600 g cm"

Figure 2.58: Experimental and theoretical differential energy spectra of vertical gamma rays at atmospheric depths of 200 and 600 g/cm2, and a latitude of 40° N (Schonfelder and Lichti, 1975). The curves are drawn to guide the eye.

Schonfelder and Lichti (1975) experimental Ling (1975) calculation

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