FLUKA: USRBIN: RZ binning axis

[Alberto Fasso' <fasso@slac.stanford.edu>]

I have realized that a few questions on this list have not yet got
an answer. 
 
On Thu, 23 Nov 2000, Laurent APHECETCHE wrote:

> So, from my understanding of the USRBIN documentation, I should be able
> to use R-Z binning, if... I knew for sure (sorry for asking what I
> assume is a very stupid question...) what to give as X and Y for the
> binning axis (WHAT(5) and WHAT(2))... Could you explain it to me ?

The manual says:

     WHAT(5) = [...]
               For R-Z binning: Y coordinate of the binning axis
               (in R-Phi-Z binnings, the Y coordinate must be zero).

     WHAT(2) = [...]
               Ymin cannot be negative)
               For R-Phi-Z binning: X coordinate of the binning axis
               (in R-Phi-Z binnings, the X coordinate must be zero).

Is that not clear enough? (I am always glad to receive suggestions 
to make the manual more clear, but...).
An R-Z binning is cylindrical scoring mesh, with the cylinder axis
parallel to, but not necessarily coincident with, the Z axis. 
The two above parameters define the binning offset with respect
to the Z axis (use 0.0 and 0.0 if the two axes coincide)


Alberto


--------------------------------------------------
Alberto Fasso'
Stanford Linear Accelerator Center
Radiation Physics Dept. ms 48
2575 Sand Hill Road
Menlo Park, CA 94025   

Tel. +1 650 926 4062        Fax: +1 650 926 3569