Changes

* The Gaussian smearing of the individual pixel pulse-height distribution was replaced with the following function that has an asymmetric tail.

* The Gaussian smearing of the individual pixel pulse-height distribution was replaced with the following function that has an asymmetric tail.

{|align="center"

{|align="center"

|<math> f(x;\alpha,\beta,\sigma) </math> ||=|| <math>\beta\frac{\alpha}{2}\,e^{\alpha x+\frac{\alpha^2\sigma^2}{2}}[1-Erf(\frac{x+\alpha\sigma^2}{\sqrt{2}\sigma})] </math>

|<math> \frac{1}{\alpha}f(x;\alpha,\beta,\sigma) </math> ||=|| <math>\beta\frac{\alpha}{2}\,e^{\alpha x+\frac{\alpha^2\sigma^2}{2}}[1-Erf(\frac{x+\alpha\sigma^2}{\sqrt{2}\sigma})] </math>

|-

|-

|&nbsp;||&nbsp;||<math> + \frac{1-\beta}{\sqrt{2\pi}\sigma}e^{-\frac{x^2}{2\sigma^2}}

|&nbsp;||&nbsp;||<math> + \frac{1-\beta}{\sqrt{2\pi}\sigma}e^{-\frac{x^2}{2\sigma^2}}