NEBULA
(NEutron Detection System for Breakup of Unstable Nuclei with Large Acceptance)

Simulatior (smsimulator)

The NEBULA simulator, named smsimulator, is C++ program based on Geant4 tool kit with ROOT libraries. This simulator is useful for

  • simulating response of NEBULA to single neutron
  • simulating trajectory of charged fragment in the SAMURAI magnet
  • simulation for N-body neutron decay.

See README file for installation and use. Master thesis of R. Tanaka (written in Japanese) is good reference of NEBULA response studied by SAMURAI commissioining experiment.

Version3.7 (coming soon)

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description

  • neutron detector positions measured for SAMURAI21 experiment
  • added ExitWindowC2Construction for new charged particle window (dy=800mm)
  • added Q_factor in TNeuLANDSimParameter, TNEBULASimParameter

Version3.6 (2, March, 2017)

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description

  • added FlightLength to TFragSimData
  • added example for making Brho function in work/simtrace

Version3.5 (13, November, 2015)

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description

  • HODF24 is added
  • bug fix in DipoleConstruction::SetMagFieldFactor

Version3.4 (10, September, 2014)

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description

  • bug(?) fix in XXXSimDataInitializer::Initialize

Version3.3 (31, July, 2014)

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description

  • bug fix: "beam" was not stored in output tree

Version3.2 (21, July, 2014)

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description

  • NeuLAND is implemented
  • Example of crosstalk analysis is included
  • Geant4.9.6.p02 is recommended
  • Geant version 10.0 is not compatible

Version3.1 (2, May, 2014)

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description

  • Geant4.9.6.p02 is recommended
  • Bug in NEBULASimDataConverter fixed Layer, SubLayer
  • Geant version 10.0 is not compatible

Version3.0 (12, Mar, 2014)

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description

  • Geant4.9.6.p02 is recommended
  • Sample macros are included
  • TTree input is supported
  • Example of crosstalk analysis is not included

Version2.0.6 (6, Dec, 2013)

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known bug

  • SimToExp() in TConvertToTArtNEBULAPla.cc
  • Position is not from the earliest step. Order of a line for substituting position should be before updating tl and tr.

description

  • Geant4.9.6.p02 is recommended
  • Sample macros are included
  • Angular distribution of generated decay system is not implemented
  • Example of crosstalk analysis is not included