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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(A){

  lib{ file="transition.def" }

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

  time=[ 20I 3 999 

         999.5 999.8 999.9 1000]

  flux=[ 26R 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