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Geant4 FLUX SIMULATIONS

Geant4 FLUX SIMULATIONS. Dorothea Pfeiffer. GIF++ Discussion 21.02.2013. GIF++ Geometry. Irradiator with lead filters RPC chambers surrounded by 4 cm of steel Floor chamber also covered by 17 cm of steel Beam trigger shielded by 5mm Tungsten rubber

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Geant4 FLUX SIMULATIONS

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  1. Geant4 FLUX SIMULATIONS Dorothea Pfeiffer GIF++ Discussion 21.02.2013

  2. GIF++ Geometry • Irradiator with lead filters • RPC chambers surrounded by 4 cm of steel • Floor chamber also covered by 17 cm of steel • Beam trigger shielded by 5mm Tungsten rubber • Roof chamber shielded by 2 cm lead plate in air Beam trigger Lead shield for roof chamber Irradiator with filter frame roof chamber Beam trigger Finetracking chamber floor chamber Steel floor (2 cm) Dorothea Pfeiffer

  3. GIF++ coordinate system • Muonbeam • x=0cm, y = 0 cm • Source • x= -200 cm, y = 0 cm, z = 0 cm (cosmics) • x= -50 cm, y = 0 cm, z = 0 cm (muons) • Cosmic trigger floor • Position: x=-200 cm, y=-197.5 cm, z= 300 cm • Dimension: x=240 cm, y=20cm, z=280 cm • Fine tracker • Position: x=-200 cm, y=-158 cm, z = 110 cm • Dimension: x=50 cm, y=20 cm, z = 100 cm • Roof chamber • Position: x=-200 cm, y=330 cm, z = 255 cm • Dimension: x=50 cm, y=40 cm, z = 100 cm • Beam trigger • Positions: x=0 cm, y= 0 cm, z = +/- 600 cm • Dimension: x=60 cm, y=40 cm, z = 20 cm Dorothea Pfeiffer

  4. GIF++ projection yz source Average flux above source 4.7e5 s^-1 cm^ -2 roof chamber Lead shield steel plate fine tracker floor chamber Dorothea Pfeiffer

  5. GIF++ projection yz beam line Downstream average flux 1.8e4 s^-1 cm^ -2 Upstream average flux 5.9e4 s^-1 cm^ -2 beam trigger beam trigger Dorothea Pfeiffer

  6. GIF++ projection xz source Downstream average flux 1.8e4 s^-1 cm^ -2 Upstream average flux 5.9e4 s^-1 cm^ -2 beam trigger beam trigger Dorothea Pfeiffer

  7. GIF++ projection xz top of floor Average flux 5.1e5 s^-1 cm^ -2 fine tracker Dorothea Pfeiffer

  8. GIF++ projection xz under floor Average flux 1.2e3 s^-1 cm^ -2 floor chamber Dorothea Pfeiffer

  9. GIF++ projection xz roof Average flux 1.0e5 s^-1 cm^ -2 roof chamber Dorothea Pfeiffer

  10. GIF++ example spectra Fine tracker Roof chamber Dorothea Pfeiffer

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