Figure 3.
In (a)–(c), the Monte Carlo derived histograms of Čerenkov emission, P(x, ϕ), for a 4 × 4, 10 × 10, and 20 × 20 cm2 6 MV beam. The histograms of Čerenkov emission, P(θ, z), for all three field sizes are shown in (d)–(f).
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