Re: I can't score proton

From: Giuseppe Battistoni <Giuseppe.Battistoni_at_mi.infn.it>
Date: Sat, 3 Jan 2009 15:41:26 +0100 (CET)

Dear Hantao
Maybe the manual is not using the accurate wording:
even in the case of electron proojectiles, hadron production proceeds
through virtual gamma interaction. We should therefore say that PHOTONUC
activates hadron production by both real and virtual gammas.
Then you have also production from electrons.
Best regards
        Giuseppe Battistoni

On Sat, 3 Jan 2009, Hantao Jing wrote:

> Dear Mr. Battistoni and Mr. Fasso',
> Happy new year to you!
> When I use the PHOTONUC card, I scored the protons surely. Thank
> you very much for your help!
> But I don't understand something yet. The PHOTONUC card is to
> activate the gamma interaction with nuclei, So I think that the scored
> proton is from the gamma interaction with nuclei. But the gamma is
> produced indirectly by primary electron interaction. On the other hand,
> another reaction types can happen, namely, the electron beam interacts
> with nucleons in target-nucleus directly, for example, e + p -> pi+ + n
> + e, e + n->pi- + p + e, e + p -> pi0 + p + e... . These
> electron-production reaction can produce the proton and pi particle. So
> I believe that even I don't use the PHOTONUC card, I still can score the
> proton. Don't the fluka include the electron-production reaction channels?
> Thank you again!
>
> Best regards,
> Hantao Jing
> 2009-1-3
>
>
>
>
>
>
>
>
>
>
> Giuseppe Battistoni wrote:
> > Dear Hantao
> > hadrons are produced by electron and gammas through photonuclear
> > reactions. These are not activated by default in FLUKA.
> > In order to activate them you have to use the PHOTONUC card.
> > See the manual for instructions. Choose the value of WHAT(1) to activate
> > photonuclear reactions at all energies and notice that you have to
> > specify by means of WHAT(4), WHAT(5) and WHAT(6) the materials (or the
> > range of materials) for which the activation of these processes must occur.
> > Regards
> > Giuseppe Battistoni
> >
> > On Tue, 30 Dec 2008, Hantao Jing wrote:
> >
> >> Dear fluka experts,
> >> I let electron beam bombard the carbon target and want to score the
> >> electron, positron, proton, pion+, and pion-, but I only obtain the
> >> electron and positron flux. The fluka can run well and no error happen.
> >> Why I can't score the proton and pion+-? Are there any errors in my inp
> >> file ? Thank you very much!
> >>
> >> Best regards,
> >> Hantao Jing
> >> 2008-12-30
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> * E:\TargetSite1\BEPC\BEPC.dat
> >> * Created: 30.12.2008
> >> * At: 8:28:51
> >> TITLE
> >> MC-CAD Test
> >> GLOBAL 1000.0 0.0 0.0 0.0 1.0 0.
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >> BEAM 1.3 1.2 0.0
> >> -1.0ELECTRON
> >> BEAMPOS 0.0 0.0 -5.0
> >> GEOBEGIN
> >> 0 0 MC-CAD
> >> * BH1
> >> SPH BH1 0.00 0.00 0.00 10000.00
> >> * DC1
> >> RCC DC1 0.00 0.00 995.00 0.00 0.00
> >> 10.00
> >> 100.00
> >> * DC2
> >> RCC DC2 0.00 0.00 1995.00 0.00 0.00
> >> 10.00
> >> 100.00
> >> * PE1
> >> XYP PE1 1000.00
> >> * PE2
> >> XYP PE2 2000.00
> >> * TA
> >> RCC TA 0.00 0.00 0.00 0.00 0.00
> >> 11.00
> >> 60.00
> >> * VA1
> >> SPH VA1 0.00 0.00 0.00 8000.00
> >> END
> >> * Reg # 1
> >> * BH; assigned material: Blackhole; mat # (1)
> >> BH 5 +BH1 -VA1
> >> * Reg # 2
> >> * VA; assigned material: Blackhole; mat # (1)
> >> VA 5 +VA1 -TA -DC1 -DC2
> >> * Reg # 3
> >> * TA; assigned material: Blackhole; mat # (1)
> >> TA 5 +TA
> >> * Reg # 4
> >> * DE1; assigned material: Vacuum; mat # (2)
> >> DE1 5 +DC1 +PE1
> >> * Reg # 5
> >> * DE2; assigned material: Vacuum; mat # (2)
> >> DE2 5 +DC1 -PE1
> >> * Reg # 6
> >> * DE3; assigned material: Vacuum; mat # (2)
> >> DE3 5 +DC2 +PE2
> >> * Reg # 7
> >> * DE4; assigned material: Vacuum; mat # (2)
> >> DE4 5 +DC2 -PE2
> >> END
> >> GEOEND
> >> *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >> MATERIAL 1. 1.007825 8.988E-5 26. 0.
> >> 1.HYDROG-1
> >> MATERIAL 1. 2.0141 1.8E-4 27. 0.
> >> 2.DEUTERIU
> >> * Natural water
> >> MATERIAL 0. 0. 1.0 28. 0. 0.WATER
> >> COMPOUND 2. HYDROGEN 1. OXYGEN 0. 0.WATER
> >> * "Light" water (with only Hydrogen-1)
> >> MATERIAL 0. 0. 1.0 29. 0. 0.LWATER
> >> COMPOUND 2. HYDROG-1 1. OXYGEN 0. 0.LWATER
> >> * Heavy water (with only Hydrogen-2)
> >> MATERIAL 0. 0. 1.10534 30. 0. 0.HWATER
> >> COMPOUND 2. DEUTERIU 1. OXYGEN 0. 0.HWATER
> >> *Marshgas(methane) gas
> >> MATERIAL 0. 0. 0.0006672 31. 0.
> >> 0.METHANE
> >> COMPOUND 4. HYDROGEN 1. CARBON 0.
> >> 0.METHANE
> >> *Marshgas(methane) liquid
> >> MATERIAL 0. 0. 0.422 32. 0.
> >> 0.METHANE-1
> >> COMPOUND 4. HYDROGEN 1. CARBON 0.
> >> 0.METHANE-1
> >> *
> >> *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >> MATERIAL 6. 12.011 2.26 33. 0.0
> >> 0.GRAPHITE
> >> LOW-MAT GRAPHITE 6. -3. 296. 0.0 0.CARBON
> >> *
> >> MATERIAL 64. 157.253 7.9004 34. 0.0
> >> 0.GADOLINI
> >> *
> >> MATERIAL 5. 10.8115 2.37 35. 0.0 0.BORON
> >> MATERIAL 0. 0. 2.52 36. 0.0 0.B4C
> >> COMPOUND 4. BORON 1.0 CARBON 0.0 0.B4C
> >> *
> >> MATERIAL 1. 1.007947 0.06 37. 0.0
> >> 0.HLIQUID
> >> LOW-MAT HLIQUID 1. -2. 87. 0.0
> >> 0.HYDROGEN
> >> *
> >> ASSIGNMAT 1.0 BH
> >> ASSIGNMAT 2.0 VA
> >> ASSIGNMAT CARBON TA
> >> ASSIGNMAT 2.0 DE1
> >> ASSIGNMAT 2.0 DE2
> >> ASSIGNMAT 2.0 DE3
> >> ASSIGNMAT 2.0 DE4
> >> *
> >> *EMF
> >> *Current from the backward direction
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 1.0 -49.0 TA VA 7728.32C1
> >>
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >>
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 POSITRON -49.0 TA VA 7728.32C2
> >>
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >>
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 PION+ -49.0 TA VA 7728.32C3
> >>
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >>
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 ELECTRON -49.0 TA VA 7728.32C4
> >>
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >>
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 PION- -49.0 TA VA 7728.32C5
> >>
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >> *
> >> *
> >> *
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 PROTON -49.0 DE1 DE2
> >> 31415.9FD1
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >>
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 POSITRON -49.0 DE1 DE2
> >> 31415.9FD2
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 NEUTRON -49.0 DE1 DE2
> >> 31415.9FD3A
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 PION+ -49.0 DE1 DE2
> >> 31415.9FD3
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >>
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 ELECTRON -49.0 DE1 DE2
> >> 31415.9FD4
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >>
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 PION- -49.0 DE1 DE2
> >> 31415.9FD5
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >>
> >> *
> >> *
> >> *
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 PROTON -49.0 DE3 DE4
> >> 31415.9SE1
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >>
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 POSITRON -49.0 DE3 DE4
> >> 31415.9SE2
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >>
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 PION+ -49.0 DE3 DE4
> >> 31415.9SE3
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >>
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 ELECTRON -49.0 DE3 DE4
> >> 31415.9SE4
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >>
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> USRBDX -1.0 PION- -49.0 DE3 DE4
> >> 31415.9SE5
> >> USRBDX 3.0 1.0D-14 300.0 6.283185 0.0 1.0&
> >>
> >> *
> >> *
> >> *
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> RANDOMIZ 1.0
> >>
> >> *
> >> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> >>
> >> START 1000000.0
> >>
> >> *USROCALL
> >>
> >> STOP
> >>
> >
> >
> >
>
>
Received on Sat Jan 03 2009 - 16:06:25 CET

This archive was generated by hypermail 2.2.0 : Sat Jan 03 2009 - 16:06:25 CET