Figure 8.

Calculated PHS of scintillators, including various sources of noise and measurement conditions. (a) An example $\mathit{\phi }({\overline{N}}_{phe})$ of a 600 μm CsI scintillator with $\overline{\mathit{\epsilon }}(0)=0.35$, $\overline{\mathit{\epsilon }}(L)=0.5$ with 32 keV excitation. (b) The same PHS, accounting for stochastic effects in photon generation and escape, but with idealized measurement, i.e. #bib100% detection efficiency and $\overline{\mathit{\delta }}\to \infty$. (c) The same spectrum, including noise due to finite PMT quantum efficiency and dynode gain – a “realistic example” of the measured PHS. Note that each PHS is normalized to its maximum value; in practice the ordinate expresses a number of counts.