Re: about unit of energy deposition for meshing by region

This is what is written in USRBIN Note 13:

     13) The results from USRBIN are normalised per unit volume and per unit
         primary weight, except for region binnings and special user-defined
         binnings, which are normalised per unit primary weight only, for
         DPA, which are given as number of displacements per atom per unit
         primary weight, averaged over the bin volume, and for dose
         equivalent, expressed as pSv per unit primary weight.

Alberto

On Thu, 21 Apr 2011, Hantao Jing wrote:

> Dear FLUKA experts,
> When I use the following USRBIN card to score the energy
> deposition, namely,
> *
> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> USRBIN 12.0 ENERGY -60.0 51.0
> magnetcE
> USRBIN 48.0 1.0 1.0 1.0 &
> I find the enerngy deposition in xxx.out file is the same to the USRBIN
> output file, namely,
> xxx.out: 50 Q28AC 1.000000000E+00 0.000000000E+00
> 0.000000000E+00 2.990095557E-10 0.000000000E+00
> USRBIN output results:
> accurate deposition along the tracks requested
> 2.9901E-10
> In fact, the region volume is not 1cm. It's mean fluka can't
> automatically calculate the region volume and USRBIN result don't
> divided by region volume, is right?
> But for USRBIN note 5, it says the energy deposition unit is GeV per cm3
> per unit primary weight. Why?
>
> Thank you very much!
>
> Hantao Jing
> 2011-4-21
Received on Thu Apr 21 2011 - 22:24:51 CEST