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HES HKS meeting 4/8/2010 T.Gogami

# HES HKS meeting

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HES HKS meeting. 4/8/2010 T.Gogami. Today’s talk. GEANT4 spherical uniform distribution (HES) 12 Λ B g.s . width simulation. Particle distribution around target. r=1 [cm]. 2/24/2010. HESPrimaryGeneratorAction.cc. input/ sample.in θ , Δθ , φ , Δφ. Δθ. θ. Δθ. min. max. Δa. Δa. - PowerPoint PPT Presentation

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HES HKS meeting

HES HKS meeting4/8/2010T.GogamiTodays talkGEANT4spherical uniform distribution (HES)12B g.s. widthsimulationParticle distribution around targetr=1 [cm]

2/24/2010HESPrimaryGeneratorAction.ccinput/sample.in , , ,

minmaxaaa

check

= 0.4 0.3 [rad] = 0.5 /2 [rad] works wellHES solid angle using new code(spherical uniform distribution)with Collimator : 5 [msr]without Collimator: 7 [msr]

12B g.s. width is wider than othersgeneratedmain peak event num. = 1300 = Nsecond peak event num. = N/3resolution = 500 [keV]background : peak max. = 1 : 4

[MeV][MeV][MeV][MeV]Width(1) (FWHM)497.5 559.9 [keV]mean(1)35.52 62.46 [keV]

generatediterated num. = 10000All event num. = 700 = Nsecond peak event num. = N/3second peak pos. = +150 [keV]resolution = 500 [keV]background : peak max. = 1 : 412B g.s. width is wider than others & to do(GEANT4)spherical uniform distribution for HESHES solid angle ~7 [msr] (without collimator)12B g.s. Simulation (+150 [keV] , resolution 500 [keV](FWHM)) Width(1) (FWHM) 497.5 559.9 [keV]To do(GEANT4)spherical uniform distribution for HKSsolid anglematrix Real dataEH2backupEPhi vs. ETheta

12B g.s. width is wider than othersgeneratedmain peak event num. = 1300 = Nsecond peak event num. = N/2resolution = 500 [keV]background : peak max. = 1 : 4

[MeV][MeV][MeV][MeV]12B g.s. width is wider than othersgeneratedmain peak event num. = 1300 = Nsecond peak event num. = Nresolution = 500 [keV]background : peak max. = 1 : 4

[MeV][MeV][MeV][MeV]Width(1) (FWHM)483.0 542.8 [keV]mean(1)19.81 46.31 [keV]

generatediterated num. = 10000All event num. = 700 = Nsecond peak event num. = N/3second peak pos. = +100 [keV]resolution = 500 [keV]background : peak max. = 1 : 412B g.s. width is wider than othersWidth(1) (FWHM)317.6 583.8 [keV]mean(1)50.8 78.4 [keV]

generatediterated num. = 10000All event num. = 700 = Nsecond peak event num. = N/3second peak pos. = +200 [keV]resolution = 500 [keV]background : peak max. = 1 : 412B g.s. width is wider than others

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