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Modeling of SNAP in Geant4

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We desire to build a model of SNAP in Geant4 and automate this process. ... interface to go directly from Solidworks/IDEAS to Geant4 for simulation purposes. ... – PowerPoint PPT presentation

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Title: Modeling of SNAP in Geant4


1
Modeling of SNAP in Geant4
  • Justin F. McDowell
  • Florida AM University

2
Purpose
  • We desire to build a model of SNAP in Geant4 and
    automate this process. To do this by hand would
    take years.
  • We will be using a Nibble file to automate the
    reconstruction process.
  • Build an interface to go directly from
    Solidworks/IDEAS to Geant4 for simulation
    purposes.

3
What is a Nibble?
  • A nibble is a 3-D cube of SNAP satellite that
    gives information on its volume, density,
    position, center of gravity and material
    composition, generated by Herman Cease.
  • This will give us the ability to characterize
    large amounts of the satellite.
  • Focal plane and electronics will be implemented
    as hand located pieces.

4
Truncated Nibble File
  • gusset_a_MOD8 PART 0 0 0 7317.586 -975.99906 12
    .625 -1046.755
  • Tank-100_MOD2 PART 0 0.012 0 1199429.684 -238.5
    8723 -344.555 -1046.564
  • Tank-100_MOD1 1 PART 0 0.012 0 1199442.435 -238.
    5867 344.542 -1046.56
  • Tank-100_MOD6 PART 0 0.011 0 1089330.775 400.31
    908 -46.387 -1046.538
  • Tank-100_MOD7 PART 0 0.011 0 1089341.15 400.319
    67 46.387 -1046.538
  • Tank-100_MOD1 2 PART 0 0.011 0 1074685.396 -146.
    35326 344.145 -1045.955
  • Tank-100_MOD1 PART 0 0.011 0 1074688.224 -146.3
    5943 -344.156 -1045.954
  • Preamp.2_MOD1 PART 0 0.001 0 110379.332 54.1134
    -1078.039 -1045.398
  • Preamp.2_MOD2 PART 0 0.005 0 477583.1 104.1134
    -1078.039 -1045.398
  • Preamp.2_MOD3 PART 0 0.005 0 459981.093 -990.23
    413 453.784 -1045.398
  • Preamp.2_MOD4 PART 0 0.001 0 107696.708 -939.22
    39 459.955 -1045.398
  • Preamp.2_MOD5 PART 0 0 0 20284.631 -992.62117 5
    13.762 -1045.398

5
Exercise in Geometry
  • This is an exercise consisting of four disks used
    to represent the CCDs at the focal plane.
  • This demonstrates control of creation and
    placement of geometries in a Vacuum World.
  • Disks are made of Al, Si, Ni, Mo in a Vacuum.
  • Not drawn to scale at this time to verify
    materials and orientation.

6
Summary and Plans
  • Use C to read the nibble file and generate
    source code.
  • Experiment with material mixtures consistent with
    what the nibble file might report.
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