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| 2 | SUBROUTINE GUTRAK
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| 3 | *
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| 4 | * User routine to control tracking of one track
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| 5 | * Called by GTREVE
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| 6 | *
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| 7 | #include "geant321/gckine.inc"
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| 8 | #include "geant321/gctrak.inc"
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| 9 | #include "celoss.inc"
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| 10 | #include "histo.inc"
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| 11 | *
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| 12 | * *** per track initialisations
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| 13 | *
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| 14 | * *** process a track
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| 15 | CALL GTRACK
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| 16 | *
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| 17 | * *** count track length of primary particle
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| 18 | if (istak.eq.0) then
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| 19 | TrLen = TrLen + sleng
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| 20 | TrLen2 = TrLen2 + sleng*sleng
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| 21 | *
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| 22 | xLen = vect(1) - vert(1)
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| 23 | XTrLen = XTrLen + xLen
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| 24 | XTrLen2 = XTrLen2 + xLen*xLen
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| 25 | *
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| 26 | NbStep = NbStep + nstep
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| 27 | NbStep2 = NbStep2 + nstep*nstep
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| 28 | *
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| 29 | stepsize = sleng/nstep
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| 30 | StepLen = StepLen + stepsize
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| 31 | StepLen2 = StepLen2 + stepsize*stepsize
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| 32 | endif
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| 33 | *
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| 34 | * *** absorbed, transmited, reflected ?
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| 35 | if (istak.eq.0) then
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| 36 | i = 1
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| 37 | if (inwvol.eq.3) then
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| 38 | i = 2
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| 39 | if (vect(4).le.0.) i = 3
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| 40 | endif
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| 41 | kcoef(i) = kcoef(i) + 1
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| 42 | endif
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| 43 | *
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| 44 | * *** histo track length
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| 45 | ih = 0
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| 46 | if (istak.eq.0) ih = 3
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| 47 | if (istak*charge.ne.0.) ih = 6
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| 48 | if ((ih.gt.0).and.(histo(ih)))
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| 49 | & call hfill (ih,sleng/histUnit(ih),0.,1.)
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| 50 | *
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| 51 | * *** histo projected range of primary
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| 52 | if (istak.eq.0) then
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| 53 | ih = 5
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| 54 | if (histo(ih)) call hfill (ih,xLen/histUnit(ih),0.,1.)
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| 55 | endif
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| 56 | *
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| 57 | END
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