| 1 | -------------------------------------------------------------------
|
|---|
| 2 |
|
|---|
| 3 | ==========================================================
|
|---|
| 4 | Geant4 - an Object-Oriented Toolkit for Physics Simulation
|
|---|
| 5 | ==========================================================
|
|---|
| 6 |
|
|---|
| 7 | History file for hadronic/models/de_excitation
|
|---|
| 8 | ----------------------------------------------
|
|---|
| 9 |
|
|---|
| 10 | This file should be used to summarize modifications introduced in the
|
|---|
| 11 | code and to keep track of all tags.
|
|---|
| 12 |
|
|---|
| 13 | ---------------------------------------------------------------
|
|---|
| 14 | * Please list in reverse chronological order (last date on top)
|
|---|
| 15 | ---------------------------------------------------------------
|
|---|
| 16 |
|
|---|
| 17 | 13-February 2009 V.Ivanchenko hadr-pre-V09-02-03
|
|---|
| 18 | ---------------------------------------------------
|
|---|
| 19 | G4PreCompoundXXX - changed the shape of probabilities (return back to 9.2)
|
|---|
| 20 | for d, t, He3, alpha (JMQ)
|
|---|
| 21 |
|
|---|
| 22 | 12-February 2009 V.Ivanchenko hadr-pre-V09-02-02
|
|---|
| 23 | ---------------------------------------------------
|
|---|
| 24 | G4PreCompoundXXX - changed the shape of probabilities
|
|---|
| 25 | for d, t, He3, alpha near the Coulomb barrier (JMQ)
|
|---|
| 26 |
|
|---|
| 27 | 11-February 2009 V.Ivanchenko hadr-pre-V09-02-01
|
|---|
| 28 | ---------------------------------------------------
|
|---|
| 29 | G4PreCompoundXXX - set default Opt3 back, add decrease Coulomb barrier
|
|---|
| 30 | for d, t, a, he3 (JMQ)
|
|---|
| 31 |
|
|---|
| 32 | 10-February 2009 V.Ivanchenko hadr-pre-V09-02-00
|
|---|
| 33 | ---------------------------------------------------
|
|---|
| 34 | Some clean up of comments
|
|---|
| 35 | G4PreCompoundIon - fixed probability of light ion emmision (JMQ)
|
|---|
| 36 | G4PreCompoundXXX - by default Opt1 is used for d, t, a, he3,
|
|---|
| 37 | Opt3 for n, p (JMQ)
|
|---|
| 38 |
|
|---|
| 39 | 09-December 2008 A.Howard hadr-pre-V09-01-15
|
|---|
| 40 | ---------------------------------------------------
|
|---|
| 41 | Added protection for close to zero excitation energy in
|
|---|
| 42 | G4PreCompoundModel.cc (according to JMQ, MAC) to not try to de-excite.
|
|---|
| 43 |
|
|---|
| 44 | 09-December 2008 A.Howard hadr-pre-V09-01-14
|
|---|
| 45 | ---------------------------------------------------
|
|---|
| 46 | Added protection for close to zero excitation energy in
|
|---|
| 47 | G4PreCompoundTransitions.cc (returns 0.0), prevents FPE later on.
|
|---|
| 48 |
|
|---|
| 49 | 27-November 2008 A.Howard hadr-pre-V09-01-13
|
|---|
| 50 | ---------------------------------------------------
|
|---|
| 51 | Added data member initialisation to G4VPreCompoundTransitions.hh
|
|---|
| 52 |
|
|---|
| 53 | 19-November 2008 A.Howard hadr-pre-V09-01-12
|
|---|
| 54 | ---------------------------------------------------
|
|---|
| 55 | JMQ fix to G4PreCompoundNeutron.cc for Zirconium (if (nu < 0.)nu=-nu).
|
|---|
| 56 |
|
|---|
| 57 | 30-September 2008 A.Howard hadr-pre-V09-01-11
|
|---|
| 58 | ---------------------------------------------------
|
|---|
| 59 | Trivial protection against negative probabilities for incident protons on
|
|---|
| 60 | targets with A < Carbon.
|
|---|
| 61 |
|
|---|
| 62 | 22-September 2008 A.Howard hadr-pre-V09-01-10
|
|---|
| 63 | ---------------------------------------------------
|
|---|
| 64 | JMQ's latest developments - which are an extension of hadr-pre-V09-01-08 with
|
|---|
| 65 | cross-section options (equivalent to the de-excitation modifications) and other
|
|---|
| 66 | options (SICB, Never Go Back,...). In addition Gunter's fix to the factorials
|
|---|
| 67 | is included from hadr-pre-V09-01-09.
|
|---|
| 68 | Added new files: G4PreCompoundAlpha.cc G4PreCompoundDeuteron.cc
|
|---|
| 69 | G4PreCompoundHe3.cc G4PreCompoundNeutron.cc G4PreCompoundProton.cc
|
|---|
| 70 | G4PreCompoundTriton.cc (Classes previously existed. Now they have more
|
|---|
| 71 | involved cross-section calculations).
|
|---|
| 72 |
|
|---|
| 73 | 19-September 2008 A.Howard hadr-pre-V09-01-09
|
|---|
| 74 | ---------------------------------------------------
|
|---|
| 75 | Including Gunter's fix (see 11-August below) on top of ref-07
|
|---|
| 76 | (hadr-pre-V09-00-04), i.e. without JMQ's developments.
|
|---|
| 77 |
|
|---|
| 78 | 11-August 2008 G.Folger
|
|---|
| 79 | -----------------------------------------------
|
|---|
| 80 | Rewrite algorithm in G4PreCompoundEmission::rho() to avoid frequent
|
|---|
| 81 | floating point overflow when using Precompund in combination
|
|---|
| 82 | with Binary Cascade.
|
|---|
| 83 |
|
|---|
| 84 |
|
|---|
| 85 | 24 July 2008 J. M. Quesada hadr-pre-V09-01-08
|
|---|
| 86 | ---------------------------------------------------
|
|---|
| 87 | Minor fixes and Coulomb barrier just for Wellisch's proton cross section
|
|---|
| 88 | (OPT=2)
|
|---|
| 89 |
|
|---|
| 90 |
|
|---|
| 91 | 23 July 2008 V.Ivanchenko hadr-pre-V09-01-07
|
|---|
| 92 | ---------------------------------------------------
|
|---|
| 93 | Fixed mistake in tagging
|
|---|
| 94 |
|
|---|
| 95 | 23 July 2008 V.Ivanchenko hadr-pre-V09-01-06
|
|---|
| 96 | ---------------------------------------------------
|
|---|
| 97 | Return back Coulomb barrier initialisation (J.M.Quesada)
|
|---|
| 98 |
|
|---|
| 99 | 27 June 2008 V.Ivanchenko hadr-pre-V09-01-05
|
|---|
| 100 | ---------------------------------------------------
|
|---|
| 101 | Fixed G4PreCompoundNucleon and G4PreCompoundIon for
|
|---|
| 102 | Coulomb barrier, added protections for zero cross sections,
|
|---|
| 103 | OPT=2 is used (J.M.Quesada)
|
|---|
| 104 |
|
|---|
| 105 | 05 June 2008 J. M. Quesada hadr-pre-V09-01-04
|
|---|
| 106 | ---------------------------------------------------
|
|---|
| 107 | Bug fixed in OPT=1 (Chatterjee) charged particle cross sections.
|
|---|
| 108 | Unphysical values at very low emission energies have been corrected (set
|
|---|
| 109 | to 0); OPT=1 ( OPT=2 in previous tag)
|
|---|
| 110 |
|
|---|
| 111 |
|
|---|
| 112 | 15-May 2008 J. M.Quesada hadr-pre-V09-01-03
|
|---|
| 113 | -----------------------------------------------
|
|---|
| 114 | The retrieval of transition probabilities in G4PreCompoundModel.cc
|
|---|
| 115 | (for protection against unphysically crossing the landa_+=landa_- condition)
|
|---|
| 116 | was misplaced. Now it has been placed inside the preequilibrium transitions
|
|---|
| 117 | loop.
|
|---|
| 118 |
|
|---|
| 119 | 8-May 2008 J. M.Quesada hadr-pre-V09-01-02
|
|---|
| 120 | -----------------------------------------------
|
|---|
| 121 | Protection against non physical situation has been set: Equilibrium exciton number
|
|---|
| 122 | Neq (when reached, equilibrium regime starts) should correspond to equal transition
|
|---|
| 123 | probabilities "back" and "forth". Nevertheless, for heavy target (Neq is big even
|
|---|
| 124 | for low incident energies) after first emission this condition (equal trans. prob.)
|
|---|
| 125 | is reached far before reaching corresponding Neq of the residual. Unless this "jump"
|
|---|
| 126 | to equilibrium is forced in this case, preequilibrium will be
|
|---|
| 127 | spuriously prolonged (as a side effect, with huge CPU consumption).
|
|---|
| 128 | G4PreCompoundModel and G4PreCompoundTransitions classes have been modified.
|
|---|
| 129 |
|
|---|
| 130 |
|
|---|
| 131 | 1-May 2008 J. M.Quesada hadr-pre-V09-01-01
|
|---|
| 132 | -----------------------------------------------
|
|---|
| 133 | - First trial with cvs. 00 skipped by mistake.
|
|---|
| 134 | New inverse cross sections:
|
|---|
| 135 | OPT=1 Chetterjee's parameterization to reaction cross sections from optical potential global fittings.
|
|---|
| 136 | OPT=2 as OPT=1 but for protons the Wellisch's parameterization for protons is used (DEFAULT)
|
|---|
| 137 | OPT=3 Kalbach's modifications of Chatterjee's parameterization of cross sections
|
|---|
| 138 | OPT=4 as OPT=3 but for protons the Wellisch's parameterization for protons is used
|
|---|
| 139 |
|
|---|
| 140 | Coulomb barrier has been suppressed as it enters through inverse cross sections. Also methods related to former Dostrovski's cross sections (alpha , beta and C parameters) have been suppressed. In all particle header files:
|
|---|
| 141 | G4PreCompoundNucleon.hh ,G4PreCompoundNeutron.hh,G4PreCompoundProton.hh, G4PreCompoundIon.hh, G4PreCompoundDeuteron.hh, G4PreCompoundTriton.hh ,G4PreCompoundHe3.hh , G4PreCompoundAlpha.hh
|
|---|
| 142 |
|
|---|
| 143 |
|
|---|
| 144 | Soft cutoff transition from equilibrium to equilibrium has been suppressed (unphysical and not necessary anymore).In G4PreCompoundModel.
|
|---|
| 145 |
|
|---|
| 146 | New transition probabilities :
|
|---|
| 147 | OPT=1 Gudima's formulae
|
|---|
| 148 | OPT=2 Machner parameterization of matrix elements for transitions (DEFAULT)
|
|---|
| 149 |
|
|---|
| 150 | Level density is set to A/10 (Gudima's prescription).
|
|---|
| 151 |
|
|---|
| 152 | Several bugs fixed (average xs in nucleon-nucleon xs in G4PreCompundTransitions.cc and emission probability formula in G4PreCompoundIon.cc ) .
|
|---|
| 153 |
|
|---|
| 154 | 25-October 2007 A.Howard hadr-pre-V09-00-04
|
|---|
| 155 | -----------------------------------------------
|
|---|
| 156 | - Removed compilation warning on unused parameter in G4PreCompoundIon.cc
|
|---|
| 157 |
|
|---|
| 158 |
|
|---|
| 159 | 11-October 2007 A.Howard hadr-pre-V09-00-03
|
|---|
| 160 | -----------------------------------------------
|
|---|
| 161 | - Corrected for integer arithmetic bug in G4PreCompoundModel.cc
|
|---|
| 162 | (ratio of charged to neutral excitons)
|
|---|
| 163 |
|
|---|
| 164 |
|
|---|
| 165 | 01-October 2007 A.Howard hadr-pre-V09-00-02
|
|---|
| 166 | -----------------------------------------------
|
|---|
| 167 | - Protected Rj (Q_beta) factor against divide by zeroes (should never happen?)
|
|---|
| 168 | The following files have been modified:
|
|---|
| 169 | G4PreCompoundAlpha.hh, G4PreCompoundDeuteron.hh, G4PreCompoundHe3.hh,
|
|---|
| 170 | G4PreCompoundTriton.hh, G4PreCompoundNeutron.hh, G4PreCompoundProton.hh
|
|---|
| 171 |
|
|---|
| 172 |
|
|---|
| 173 | 23-August 2007 A.Howard hadr-pre-V09-00-01
|
|---|
| 174 | ----------------------------------------------
|
|---|
| 175 | - Development tag incorporating further suggestions/corrections from
|
|---|
| 176 | Jose-Manuel Quesada particularly with respect to light ion production.
|
|---|
| 177 | The following files have been modified:
|
|---|
| 178 | G4PreCompoundIon.cc, G4PreCompoundDeuteron.hh, G4PreCompoundHe3.hh,
|
|---|
| 179 | G4PreCompoundTriton.hh, G4PreCompoundAlpha.hh, G4PreCompoundIon.hh,
|
|---|
| 180 | G4VPreCompoundIon.hh (unused?)
|
|---|
| 181 |
|
|---|
| 182 |
|
|---|
| 183 | 23-July 2007 A.Howard hadr-pre-V09-00-00
|
|---|
| 184 | ----------------------------------------------
|
|---|
| 185 | - Development tag incorporating the suggestions/corrections of Jose-Manuel
|
|---|
| 186 | Quesada. These should reflect the literature and units expected for the
|
|---|
| 187 | exciton model. The following files have been modified:
|
|---|
| 188 | G4PreCompoundNucleon.hh, G4VPreCompoundNucleon.hh, G4PreCompoundAlpha.hh,
|
|---|
| 189 | G4PreCompoundHe3.hh, G4PreCompoundDeuteron.hh, G4PreCompoundNeutron.hh,
|
|---|
| 190 | G4PreCompoundProton.hh, G4PreCompoundTriton.hh
|
|---|
| 191 | G4VPreCompoundIon.cc, G4PreCompoundIon.cc, G4PreCompoundModel.cc,
|
|---|
| 192 | G4VPreCompoundFragment.cc, G4PreCompoundTransitions.cc,
|
|---|
| 193 | G4PreCompoundNucleon.cc, G4VPreCompoundNucleon.cc
|
|---|
| 194 | The main changes are:
|
|---|
| 195 | - introducing an Rj factor into the probability calculation,
|
|---|
| 196 | - correcting the units for the Pauli Blocking Factor - missing a g factor,
|
|---|
| 197 | - decreasing the number of charged particles if the number excitons is
|
|---|
| 198 | decreased (previously this number was only increased with increasing
|
|---|
| 199 | excitons).
|
|---|
| 200 |
|
|---|
| 201 |
|
|---|
| 202 | 04-May 2007 G.Folger hadr-pre-V08-02-00
|
|---|
| 203 | ----------------------------------------------
|
|---|
| 204 | - G4PreCompoundTransitions.cc: Protect against divide by 0
|
|---|
| 205 |
|
|---|
| 206 | 19 Aug 2006 Dennis Wright (hadr-pre-V08-01-00)
|
|---|
| 207 | ----------------------------------------------
|
|---|
| 208 | - exciton_model
|
|---|
| 209 | G4VPreCompoundFragment.hh, .icc : remove meaningless const from
|
|---|
| 210 | methods GetA, GetZ, GetRestA, GetRestZ, GetCoulombBarrier, GetBindingEnergy,
|
|---|
| 211 | GetMaximalKineticEnergy, GetEnergyThreshold, GetEmissionProbability,
|
|---|
| 212 | GetNuclearMass, GetRestNuclearMass and GetReducedMass
|
|---|
| 213 |
|
|---|
