How to calculate fragmentation cross-section

Dear FLUKA experts,

I have one question on the function of ENDRAW of mgdraw.f.

In order to score energy deposition of heavy ions penetrating a pair of
scintillators (NE102 telescope), I requested to output RULL in every
energy deposition event, however, it was
* always zero for ions
* sometimes zero for protons
* always non-zero for heavy recoils and neutrons
(continuous energy losses were not scored?)

I would really appreciate if someone could tell me how can I get energy
deposition by individual heavy ions in particular regions.

Because I also need time of flight information , DETECT card is not
applicable.
Attached is the input file and mgdraw.f subroutine.

Many thanks in advance,
Ogawa

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  Department of Nuclear Engineering and Management
         Graduate School of Engineering
            The University of Tokyo
               Tatsuhiko Ogawa
    E-mail:  ogawa_at_n.t.u-tokyo.ac.jp, togawa_at_cern.ch
       Tel:   03-5841-2905  (+81-3-5841-2905)
Facsimile:   03-5841-2922  (+81-3-5841-2922)
   Address: 2-11-16, Dept. Nucl. Eng. Annex R-230
           Yayoi Bunkyo-ku, Tokyo, Japan 113-0032
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