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Assay and Acquisition of Radiopure Materials

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g4flukacomp_v1

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g4flukacomp_v1 [2013/04/15 12:10] – villaag4flukacomp_v1 [2013/05/13 23:07] (current) – villaa
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-  for Borexino scintillator we plot the integrated flux as a function of neutron energy for several muon primary energies+  for Borexino scintillator (C9H12 at 0.887 g/cm^2) we plot the integrated flux as a function of neutron energy for several muon primary energies
      
 {{:gfcompare:flux:nflux_scin_mu.png?1000|Integrated flux for muons in scintillator.}} {{:gfcompare:flux:nflux_scin_mu.png?1000|Integrated flux for muons in scintillator.}}
  
 +  for water we plot the integrated flux as a function of neutron energy for several muon primary energies
 +  
 +{{:gfcompare:flux:nflux_h2o_mu.png?1000|Integrated flux for muons in water.}}
 +
 +for calcium carbonate (CaCO_3) we plot the integrated flux as a function of neutron energy for several muon primary energies **NOTE: Anthony found an error he made in material definition wherin Ca was being basically replaced by Na, working out new plots now...**
 +  
 +{{:gfcompare:flux:nflux_caco3_mu.png?1000|Integrated flux for muons in calcium carbonate.}}
 +
 +**__UPDATE__**: There was an error made by Anthony in the material definition as per the above.  The plot below shows the updated CaCO3 plots which display better agreement which no longer displays a clear resonance neary 1 - 2 keV.  This resonance was found to be due to a wide Na-23(n,g) resonance.
 +
 +{{:gfcompare:flux:nflux_caco3_mu_130513.png?1000|Integrated flux for muons in calcium carbonate.}}
 +
 +
 +for natural iron we plot the integrated flux as a function of neutron energy for several muon primary energies
 +  
 +{{:gfcompare:flux:nflux_iron_mu.png?1000|Integrated flux for muons in iron.}}
 +
 +for natural lead we plot the integrated flux as a function of neutron energy for several muon primary energies
 +  
 +{{:gfcompare:flux:nflux_lead_mu.png?1000|Integrated flux for muons in lead.}}
 +
 +**__UPDATE__**: A normalization problem was found in the FLUKA wherein all the curves were replaced with the 280 GeV versions, below is the new simulation result, which matches very well in integral but the shape is still very discrepant and needs to be investigated. 
  
 +{{:gfcompare:flux:nflux_lead_mu_130513.png?1000|Integrated flux for muons in lead.}}
g4flukacomp_v1.1366045820.txt.gz · Last modified: 2013/04/15 12:10 by villaa

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