| 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | // $Id: G4FissLib.hh,v 1.2 2007/06/01 13:46:53 gcosmo Exp $
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| 27 | // GEANT4 tag $Name: geant4-09-02 $
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| 28 | //
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| 29 | // ********************************************************************
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| 30 | // ! A neutron-induced fission package !
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| 31 | // ! J.M. Verbeke, Dec-2006 / LLNL !
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| 32 | // ! !
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| 33 | // ! G4NeutronFissionModule.cc !
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| 34 | // ! !
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| 35 | // ! Classes to simulate neutron-induced fissions, emitting neutrons !
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| 36 | // ! and gamma-rays. Algorithm uses data whenever available, and !
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| 37 | // ! models such as the Terrell approximation, the Watt spectrum !
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| 38 | // ! otherwise. !
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| 39 | // ! !
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| 40 | // ! The complete list of references used is shown below: !
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| 41 | // ! !
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| 42 | // ! J. Terrell, "Distributions of Fission Neutron Numbers", Phys. !
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| 43 | // ! Rev. 108, 783 (1957). !
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| 44 | // ! M.S. Zucker, N.E. Holden, "Energy Dependence of Neutron !
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| 45 | // ! Multiplicity P_nu in Fast-Neutron-Induced Fission for U-235, !
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| 46 | // ! U-238 and Pu-239," BNL-38491 (1986). !
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| 47 | // ! T.E. Valentine, "MCNP-DSP Users Manual," ORNL/TM-13334, R2, Oak !
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| 48 | // ! Ridge National Laboratory (2000). !
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| 49 | // ! T.E. Valentine, J.T. Mihalczo, "MCNP-DSP: A Neutron and Gamma !
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| 50 | // ! Ray Monte Carlo Calculation of Source-Driven Noise-Measured !
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| 51 | // ! Parameters ," Ann. of Nucl. Eng., 23, 16, p. 1271 (1996). !
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| 52 | // ! R. Gwin, R.R. Spencer, R.W. Ingle, "Measurements of the Energy !
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| 53 | // ! Dependence of Prompt Neutron Emission from U-233, U-235, !
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| 54 | // ! Pu-239, and Pu-241 for E_n=0.005 to 10 eV Relative to Emission !
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| 55 | // ! from Spontaneous Fission of Cf-252," Nucl. Sci. Eng., 87, 381 !
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| 56 | // ! (1984). !
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| 57 | // ! J. Frehaut, "Neutron Multiplicity Distribution in Fast !
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| 58 | // ! Neutron-Induced Fission," Proc. of IAEA Consultant's Meeting !
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| 59 | // ! on Physics of Neutron Emission in Fission, Mito, Japan (1988). !
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| 60 | // ! R.R. Spencer, R. Gwin, R.W. Ingle, "A measurement of the Average !
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| 61 | // ! Number of Prompt Neutrons from Spontaneous Fission of !
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| 62 | // ! Californium-252," Nucl. Sci. Eng. 80, 603 (1982). !
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| 63 | // ! J.W. Boldeman, M.G. Hines, "Prompt Neutron Emission !
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| 64 | // ! Probabilities Following Spontaneous and Thermal Neutron !
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| 65 | // ! Fission," Nucl. Sci. Eng., 91, 114 (1985). !
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| 66 | // ! N.E. Holden, M.S. Zucker, "A Reevaluation of the Average Prompt !
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| 67 | // ! Neutron Emission Multiplicity (nubar) Values from Fission of !
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| 68 | // ! Uranium and Transuranium Nuclides," BNL-NCS-35513, Brookhaven !
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| 69 | // ! National Laboratory). !
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| 70 | // ! R.J. Howerton, et al, "The LLL Evaluated Nuclear Data Library !
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| 71 | // ! (ENDL): Evaluation Techniques, Reaction Index, and Description !
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| 72 | // ! of Individual Evaluations," UCRL-50400, V. 15, Part A, !
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| 73 | // ! Lawrence Livermore National Laboratory (1975). !
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| 74 | // ! D.E. Cullen, "Sampling ENDL Watt Fission Spectra," !
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| 75 | // ! UCRL-TR-203251, Lawrence Livermore National Laboratory (2004). !
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| 76 | // ! C.J. Everett, E.D. Cashwell, "A Third Monte Carlo Sampler," !
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| 77 | // ! LA-9721-MS, Los Alamos National Laboratory (1983). !
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| 78 | // ! D.E. Cullen, "TART 2002: A Couple Neutron-Photon 3-D, !
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| 79 | // ! Combinatorial Geometry, Time Dependent Monte-Carlo Transport !
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| 80 | // ! Code," UCRL-ID-126455, Rev. 4, Lawrence Livermore National !
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| 81 | // ! Laboratory (2003). !
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| 82 | // ! W. Mannhart, "Evaluation of the Cf-252 Fission Neutron Spectrum !
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| 83 | // ! Between 0 MeV and 20 MeV," Proc. Advisory Group Mtg. Neutron !
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| 84 | // ! Sources, Leningrad, USSR, 1986 (IAEA-TECDOC-410), Vienna !
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| 85 | // ! (1987). !
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| 86 | // ! D.G. Madland, J.R. Nix, "Prompt Fission Neutron Spectra and !
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| 87 | // ! Average Prompt Neutron Multiplicities,"NEANDC Specialist's !
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| 88 | // ! Meeting on Yields and Decay Data of Fission Products, !
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| 89 | // ! Brookhaven National Laboratory, BNL 51778 (1984). !
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| 90 | // ! F.H. Froehner, "Evaluation of Cf-252 Prompt Fission Neutron Data !
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| 91 | // ! from 0 to 20 MeV by Watt Spectrum Fit," Nucl. Sci. Eng. 106, !
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| 92 | // ! 345 (1990). !
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| 93 | // ! G.S. Brunson, Jr., "Multiplicity and Correlated Energy of Gamma !
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| 94 | // ! Rays Emitted in the Spontaneous Fission of Californium-252," !
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| 95 | // ! Ph.D. Thesis, University of Utah (1982). !
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| 96 | // ! T.E. Valentine, "Evaluation of Prompt Fission Gamma Rays for Use !
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| 97 | // ! in Simulating Nuclear Safeguard Measurements," Ann. Nucl. !
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| 98 | // ! Eng., 28, 191 (2001). !
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| 99 | // ! C. Wagemans, "The Nuclear Fission Process," CRC Press, Inc., Boca!
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| 100 | // ! Raton, Florida (1991). !
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| 101 | // ! F.C. Maienschein, R.W. Peelle, T.A. Love, Neutron Phys. Ann. !
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| 102 | // ! Prog. Rep. for Sept. 1, 1958, ORNL-2609, Oak Ridge National !
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| 103 | // ! Laboratory (1958). !
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| 104 | // ! "Fundamental Aspects of Reactor Shielding," Addison-Wesley !
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| 105 | // ! Publishing Company, Inc. Reading, Massachussetts (1959). !
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| 106 | // ! !
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| 107 | // ********************************************************************
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| 108 | //
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| 109 | // Hadronic Process: High Precision low E neutron tracking
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| 110 | // original by J.M. Verbeke, LLNL, 5-Jan-07
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| 111 | // Builds and has the Cross-section data for one material.
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| 112 |
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| 113 | #ifndef G4FissLib_h
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| 114 | #define G4FissLib_h 1
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| 115 |
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| 116 | // Class Description
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| 117 | // Final state production model for a high precision (based on evaluated data
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| 118 | // libraries) description of neutron induced fission below 10 MeV.
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| 119 | // Note that this model (by intent of avoiding the possibility of heating studies) does
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| 120 | // not provide the nuclear fragments.
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| 121 | //
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| 122 | // To be used in your physics list in case you need this physics.
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| 123 | // In this case you want to register an object of this class with
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| 124 | // the corresponding process.
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| 125 | // Class Description - End
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| 126 |
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| 127 | #include "globals.hh"
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| 128 | #include "G4NeutronHPChannel.hh"
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| 129 | #include "G4HadronicInteraction.hh"
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| 130 | #include "G4NeutronHPThermalBoost.hh"
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| 131 | #include "G4FissionLibrary.hh"
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| 132 | #include "G4FissLib.hh"
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| 133 |
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| 134 | class G4FissLib : public G4HadronicInteraction
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| 135 | {
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| 136 | public:
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| 137 |
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| 138 | G4FissLib();
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| 139 |
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| 140 | ~G4FissLib();
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| 141 |
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| 142 | G4HadFinalState * ApplyYourself(const G4HadProjectile& aTrack, G4Nucleus& aTargetNucleus);
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| 143 |
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| 144 | private:
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| 145 |
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| 146 | G4FissionLibrary theLibrary;
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| 147 |
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| 148 | private:
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| 149 |
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| 150 | G4double * xSec;
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| 151 | G4NeutronHPChannel * theFission;
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| 152 | G4String dirName;
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| 153 | G4int numEle;
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| 154 | // static G4String theNames[3];
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| 155 | };
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| 156 |
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| 157 | #endif
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