Trapezoid slope

[ArohiJain]

In .pdf (float)
Longitudinal density profile of the beam, given as a probability density function (the transverse profile is Gaussian).
Trapezoidal: (z<z_max)(z>z_min)(1+z_slope*z)

How to define the z_slope of a trapezoidal electron bunch if we know the linear charge density of the bunch?

[https://hipace.readthedocs.io/en/latest/run/parameters.html#option-fixed-weight-pdf]

[AlexanderSinn]

If you only know the average linear charge density of the beam, then that is not enough to calculate the slope, you also need the beam current at, for example, the front or back of the beam. But if you know the linear charge density as a function of z, you simply set the pdf to that.