Difference between revisions of "Bubble Chamber Beam Test September 2015"

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* '''To-do List:'''
 
* '''To-do List:'''
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# Geometry is in gdml format, need to get correct Radiator, Collimator, Beamline, PhotonDump geometry.
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# Geometry is in gdml format, need to get  
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# Add sweep magnet and electrondump geometry in gdml format.
 
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# Complete: Include the Bubble Chamber geometry using the Bubble Chamber STEP file (change .txt to .stp): [[media:BubbleChamber.txt]].
 
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## Geometry has been created and is on github, BubbleMother.gdml and all daughter files
 
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# The beamline STEP file will be ready very soon. When? Last file recieved was BubbleChamber again 6_24_2014.
 
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# GEANT4 uses models that calculate wrong photo–nuclear cross sections (see below). GEANT4 does not allow for user’s cross sections. What to do?
 
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## Use GEANT4 to produce the photon spectra impinging on the superheated liquid.
 
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## Fold the above photon spectra with our cross sections in stand-alone codes.
 
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## Could we not create a correct physicslist.cc in geant4 instead?
 
 
* GEANT4 Photon-Inelastic Model: CHIPS Gamma Nuclear has this cross section for our reaction:  
 
* GEANT4 Photon-Inelastic Model: CHIPS Gamma Nuclear has this cross section for our reaction:  
  
 
[[file:CrossSections.gif||500px|]]
 
[[file:CrossSections.gif||500px|]]
  
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* The simulation below is outdated and doesnt work with gdml. See github for correct version.
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* The simulation below is outdated  
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* Quick start for the simulation: [[media:G4_BubbleEx_README.txt]]. There is also a README file that comes with the example.
 
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* Bubble Chamber GEANT4 Example (change .txt to .tar): [[media:BubbleEx96.txt]]
 
  
 
[[file:gNaturalN2O.gif||500px|]]
 
[[file:gNaturalN2O.gif||500px|]]
  
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= '''Compiling/Running Simulation (BubbleEx)''' =
 
  
 
[[file:gNaturalO.gif||500px|]]
 
[[file:gNaturalO.gif||500px|]]
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* '''Using the ifarm or jlabl4 nodes'''
 

Revision as of 16:33, 3 September 2015

Run Plan

  • To-do List:
  1. Geometry is in gdml format, need to get
  • GEANT4 Photon-Inelastic Model: CHIPS Gamma Nuclear has this cross section for our reaction:

CrossSections.gif

  • The simulation below is outdated

GNaturalN2O.gif


GNaturalO.gif

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