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=origen

% Use CRAM for forward solve so it is consistent 

% with CRAM which is the only option for the adjoint.

solver{

    type=cram

}

% Forward case with 1 gram of U235 irradiated at 

% constant flux for 1000 days. 

case(1){

  lib{ file="transition.def" }

  mat{ iso=[ u235=1.0 ] units=GRAMS }

  time=[ 20I 3 988 ]

  flux=[ 22R 1e14  ]

}

case(2){

  time{

    start=0

    units=DAYS

    t=[0.5 1 2 5 6 7 8 9 10 10.5 11 11.1]

  }

  flux=[ 12R 1e14]

}

case(A){

  time{

    start=0

    units=HOURS

    t=[1 2 5 6 7 8 9 10 10.5 11 11.1]

  }

  flux=[ 11R 1e14]

}

% Sensitivity of Xe135. 

sens{

  case=A

  response{ iso=[xe135=1.0] type=NUCLIDE step=LAST}

  threshold=1e-2

  dp_verify{ nrank=3 nrank_pert=1.001 }

}

end