From: Stefan Roesler (sroesler@mail.cern.ch)
Date: Mon Jun 11 2007 - 09:43:44 CEST
Dear Yuanjie Bi,
It is a program which calls directly the FLUKA event-generator and scores
the produced fragments. Please contact Alfredo Ferrari for further
information and to request the code.
Best regards
Stefan
On Mon, 11 Jun 2007, Yuanjie Bi wrote:
> Hello Stefan Roesler,
>
> Thank you for your reply! I have found the mistake made in my analytical result.
>
> Could you tell me the method to obtain the cross section predicted with FLUKA?
>
>
> Many thanks for your help
>
> = = = = = = = = = = = = = = = = = = = =
>
> Best regards
>
>
> Yuanjie Bi
> biyuanjie@tsinghua.org.cn
> 2007-06-11
>
>
>
>
> ======= on 2007-06-08 15:04:21 you wrote:=======
>
> >Hello Yuanjie Bi,
> >
> >I can confirm your FLUKA-result of 2.0406E+11Bq/cm^3. The 7Be production
> >cross section predicted with the most recent FLUKA version is actually
> >15mb.
> >
> >However, I cannot reproduce your analytical result: the saturation yield
> >is 1.002E-7 7Be/primary, the beam intensity is 1.248E15 p/second and the
> >built-up factor is (for tirr=42.72days) 0.4263. The product of the three
> >factors divided by the volume of your region (foil) gives 2.0011E11
> >Bq/cm^3.
> >
> >Regards
> >Stefan
> >
> >On Mon, 4 Jun 2007, Yuanjie BI wrote:
> >
> >> Hi Fluka users,
> >>
> >> I am reserching the radioactivity of a thin carbon foil bombed by 100MeV proton.
> >> The production of Be7 calculated by FLUKA is 2.03E+11Bq/cmc, but my analytic
> >> result using the cross section of 13mb is 1.95E+12Bq/cmc.
> >>
> >> I have checked the input many times and can't find the reason,is my input file
> >> correct ?
> >>
> >> By the way, how could I know the cross section used by FLUKA?
> >>
> >>
> >> Many thanks for your help
> >> Best regards
> >>
> >> Yuanjie Bi
> >> -------------------------------------------------------------------------------
> >> TITLE
> >> C foil bombarded by 100MeV protons
> >> GLOBAL 1.0 1.0
> >> DEFAULTS NEW-DEFA
> >> BEAM -0.1 0.5 0.8 PROTON
> >> BEAMPOS 0.0 0.0 -0.0001
> >> PHYSICS 3.0 EVAPORAT
> >> PHYSICS 1.0 COALESCE
> >> GEOBEGIN COMBNAME
> >> 0 0 C foil inside vacuum
> >> * Black body
> >> RPP blkbody -500.0 500.0 -500.0 500.0 -500.0 500.0
> >> * void
> >> RPP void -100.0 100.0 -100.0 100.0 -10.0 100.0
> >> * target
> >> RPP target -1.0 1.0 -1.0 1.0 0.0 6.66D-05
> >> END
> >> * Black hole
> >> BLKBODY 5 +blkbody -void
> >> * Void around
> >> VOID 5 +void -target
> >> * Target
> >> TARGET 5 +target
> >> END
> >> GEOEND
> >> * ..+....1....+....2....+....3....+....4....+....5....+....6....+....7..
> >> ASSIGNMA BLCKHOLE BLKBODY
> >> ASSIGNMA VACUUM VOID
> >> ASSIGNMA CARBON TARGET
> >> LOW-NEUT 1.0
> >> EMF EMF-OFF
> >> DISCARD ELECTRON POSITRON PHOTON MUON+ MUON- PIZERO
> >> LAM-BIAS 0.0002 CARBON PROTON NEUTRON 7.0INEALL
> >> LOW-BIAS 73.0 72.0 0.85 VOID TARGET 1.0
> >> RADDECAY 1.0 3.0 0.0 99999
> >> IRRPROFI 3691008.0 1.248D+15
> >> DCYTIMES 0.0 28800.0 86400.0 604800.0 2592000.0 10368000.
> >> DCYSCORE 1.0 A A RESNUCLE
> >> RESNUCLE 1.0 -21.0 TARGET 0.000266A
> >> DCYSCORE 2.0 B B RESNUCLE
> >> RESNUCLE 1.0 -22.0 TARGET 0.000266B
> >> RANDOMIZ 1.0
> >> START 1.D8 0.0
> >> STOP
> >>
> >>
> >>
> >
> >--
> >___________________________________
> >
> >Stefan Roesler
> >CERN, SC/RP
> >CH-1211 Geneva 23
> >Switzerland
> >
> >Phone: +41-22-7679891
> >Fax: +41-22-7669639
> >E-mail: Stefan.Roesler@cern.ch
> >
>
>
>
-- ___________________________________ Stefan Roesler CERN, SC/RP CH-1211 Geneva 23 Switzerland Phone: +41-22-7679891 Fax: +41-22-7669639 E-mail: Stefan.Roesler@cern.ch
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