Import Geant4 9.1.0 source tree

This commit is contained in:
Gabriele Cosmo
2016-06-09 15:37:50 +02:00
parent a8e9364cea
commit 96c8bcd0af
6923 changed files with 198390 additions and 41849 deletions
+58 -88
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@@ -1,6 +1,6 @@
*************************************************************
Geant4 version Name: geant4-09-00-cand-03 (29-June-2007)
Geant4 version Name: global-V09-00-02 (14-December-2007)
Copyright : Geant4 Collaboration
Reference : NIM A 506 (2003), 250-303
WWW : http://cern.ch/geant4
@@ -9,88 +9,58 @@
***** Table : Nb of materials = 13 *****
Material: Aluminium density: 2.700 g/cm3 temperature: 273.15 K pressure: 1.00 atm RadLength: 8.893 cm
Material: Aluminium density: 2.700 g/cm3 RadL: 8.893 cm Imean: 166.400 eV
---> Element: Aluminium ( ) Z = 13.0 N = 27.0 A = 26.98 g/mole ElmMassFraction: 100.00 % ElmAbundance 100.00 %
Material: liquidArgon density: 1.390 g/cm3 temperature: 273.15 K pressure: 1.00 atm RadLength: 14.065 cm
Material: liquidArgon density: 1.390 g/cm3 RadL: 14.065 cm Imean: 187.200 eV
---> Element: liquidArgon ( ) Z = 18.0 N = 40.0 A = 39.95 g/mole ElmMassFraction: 100.00 % ElmAbundance 100.00 %
Material: Lead density: 11.350 g/cm3 temperature: 273.15 K pressure: 1.00 atm RadLength: 5.612 mm
Material: Lead density: 11.350 g/cm3 RadL: 5.612 mm Imean: 820.000 eV
---> Element: Lead ( ) Z = 82.0 N = 207.2 A = 207.19 g/mole ElmMassFraction: 100.00 % ElmAbundance 100.00 %
Material: Water density: 1.000 g/cm3 temperature: 273.15 K pressure: 1.00 atm RadLength: 36.092 cm
Material: Water density: 1.000 g/cm3 RadL: 36.092 cm Imean: 75.000 eV
---> Element: Hydrogen (H) Z = 1.0 N = 1.0 A = 1.01 g/mole ElmMassFraction: 11.21 % ElmAbundance 66.67 %
---> Element: Oxygen (O) Z = 8.0 N = 16.0 A = 16.00 g/mole ElmMassFraction: 88.79 % ElmAbundance 33.33 %
Material: Scintillator density: 1.032 g/cm3 temperature: 273.15 K pressure: 1.00 atm RadLength: 42.549 cm
Material: Scintillator density: 1.032 g/cm3 RadL: 42.549 cm Imean: 63.913 eV
---> Element: Carbon (C) Z = 6.0 N = 12.0 A = 12.01 g/mole ElmMassFraction: 91.45 % ElmAbundance 47.37 %
---> Element: Hydrogen (H) Z = 1.0 N = 1.0 A = 1.01 g/mole ElmMassFraction: 8.55 % ElmAbundance 52.63 %
Material: Mylar density: 1.397 g/cm3 temperature: 273.15 K pressure: 1.00 atm RadLength: 28.599 cm
Material: Mylar density: 1.397 g/cm3 RadL: 28.599 cm Imean: 75.075 eV
---> Element: Carbon (C) Z = 6.0 N = 12.0 A = 12.01 g/mole ElmMassFraction: 62.49 % ElmAbundance 45.45 %
---> Element: Hydrogen (H) Z = 1.0 N = 1.0 A = 1.01 g/mole ElmMassFraction: 4.20 % ElmAbundance 36.36 %
---> Element: Oxygen (O) Z = 8.0 N = 16.0 A = 16.00 g/mole ElmMassFraction: 33.30 % ElmAbundance 18.18 %
Material: quartz density: 2.200 g/cm3 temperature: 273.15 K pressure: 1.00 atm RadLength: 12.295 cm
Material: quartz density: 2.200 g/cm3 RadL: 12.295 cm Imean: 126.007 eV
---> Element: Silicon (Si) Z = 14.0 N = 28.1 A = 28.09 g/mole ElmMassFraction: 46.75 % ElmAbundance 33.33 %
---> Element: Oxygen (O) Z = 8.0 N = 16.0 A = 16.00 g/mole ElmMassFraction: 53.25 % ElmAbundance 66.67 %
Material: Air density: 1.290 mg/cm3 temperature: 273.15 K pressure: 1.00 atm RadLength: 285.161 m
Material: Air density: 1.290 mg/cm3 RadL: 285.161 m Imean: 85.684 eV temperature: 273.15 K pressure: 1.00 atm
---> Element: Nitrogen (N) Z = 7.0 N = 14.0 A = 14.01 g/mole ElmMassFraction: 70.00 % ElmAbundance 72.71 %
---> Element: Oxygen (O) Z = 8.0 N = 16.0 A = 16.00 g/mole ElmMassFraction: 30.00 % ElmAbundance 27.29 %
Material: Aerogel density: 200.000 mg/cm3 temperature: 273.15 K pressure: 1.00 atm RadLength: 1.493 m
Material: Aerogel density: 200.000 mg/cm3 RadL: 1.493 m Imean: 100.118 eV
---> Element: Silicon (Si) Z = 14.0 N = 28.1 A = 28.09 g/mole ElmMassFraction: 29.22 % ElmAbundance 11.12 %
---> Element: Oxygen (O) Z = 8.0 N = 16.0 A = 16.00 g/mole ElmMassFraction: 66.49 % ElmAbundance 44.42 %
---> Element: Hydrogen (H) Z = 1.0 N = 1.0 A = 1.01 g/mole ElmMassFraction: 4.19 % ElmAbundance 44.37 %
---> Element: Carbon (C) Z = 6.0 N = 12.0 A = 12.01 g/mole ElmMassFraction: 0.10 % ElmAbundance 0.09 %
Material: CarbonicGas density: 27.000 mg/cm3 temperature: 325.00 K pressure: 50.00 atm RadLength: 13.406 m
Material: CarbonicGas density: 27.000 mg/cm3 RadL: 13.406 m Imean: 90.164 eV temperature: 325.00 K pressure: 50.00 atm
---> Element: Carbon (C) Z = 6.0 N = 12.0 A = 12.01 g/mole ElmMassFraction: 27.29 % ElmAbundance 33.33 %
---> Element: Oxygen (O) Z = 8.0 N = 16.0 A = 16.00 g/mole ElmMassFraction: 72.71 % ElmAbundance 66.67 %
Material: WaterSteam density: 0.300 mg/cm3 temperature: 500.00 K pressure: 2.00 atm RadLength: 1.203 km
Material: WaterSteam density: 0.300 mg/cm3 RadL: 1.203 km Imean: 70.893 eV temperature: 500.00 K pressure: 2.00 atm
---> Element: Hydrogen (H) Z = 1.0 N = 1.0 A = 1.01 g/mole ElmMassFraction: 11.21 % ElmAbundance 66.67 %
---> Element: Oxygen (O) Z = 8.0 N = 16.0 A = 16.00 g/mole ElmMassFraction: 88.79 % ElmAbundance 33.33 %
Material: Galactic density: 0.000 mg/cm3 temperature: 2.73 K pressure: 0.00 atm RadLength: 204727576.737 pc
Material: Galactic density: 0.000 mg/cm3 RadL: 204727576.737 pc Imean: 21.800 eV temperature: 2.73 K pressure: 0.00 atm
---> Element: Galactic ( ) Z = 1.0 N = 1.0 A = 1.01 g/mole ElmMassFraction: 100.00 % ElmAbundance 100.00 %
Material: Beam density: 0.010 mg/cm3 temperature: 273.15 K pressure: 0.02 atm RadLength: 36.786 km
Material: Beam density: 0.010 mg/cm3 RadL: 36.786 km Imean: 85.684 eV temperature: 273.15 K pressure: 0.02 atm
---> Element: Nitrogen (N) Z = 7.0 N = 14.0 A = 14.01 g/mole ElmMassFraction: 70.00 % ElmAbundance 72.71 %
---> Element: Oxygen (O) Z = 8.0 N = 16.0 A = 16.00 g/mole ElmMassFraction: 30.00 % ElmAbundance 27.29 %
Visualization Manager instantiating...
Visualization Manager initialising...
Registering graphics systems...
You have successfully registered the following graphics systems.
Current available graphics systems are:
ASCIITree (ATree)
DAWNFILE (DAWNFILE)
G4HepRep (HepRepXML)
G4HepRepFile (HepRepFile)
RayTracer (RayTracer)
VRML1FILE (VRML1FILE)
VRML2FILE (VRML2FILE)
Registering model factories...
You have successfully registered the following model factories.
Registered model factories:
generic
drawByCharge
drawByParticleID
drawByOriginVolume
drawByAttribute
Registered filter factories:
chargeFilter
particleFilter
originVolumeFilter
attributeFilter
------------------------------------------------------------
---> The calorimeter is 10 layers of: [ 10mm of Lead + 5mm of liquidArgon ]
@@ -120,7 +90,7 @@ eIoni: tables are built for e-
Lambda tables from threshold to 100 TeV in 120 bins.
Delta cross sections and sampling from MollerBhabha model
Good description from 1 KeV to 100 GeV.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
eBrem: tables are built for e-
dE/dx and range tables from 100 eV to 100 TeV in 120 bins.
@@ -133,7 +103,7 @@ eIoni: tables are built for e+
Lambda tables from threshold to 100 TeV in 120 bins.
Delta cross sections and sampling from MollerBhabha model
Good description from 1 KeV to 100 GeV.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
eBrem: tables are built for e+
dE/dx and range tables from 100 eV to 100 TeV in 120 bins.
@@ -156,7 +126,7 @@ hIoni: tables are built for proton
Scaling relation is used from proton dE/dx and range.
Delta cross sections and sampling from BetheBloch model for scaled energy > 2 MeV
Parametrisation from Bragg for protons below.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
hIoni: tables are built for anti_proton
dE/dx and range tables from 100 eV to 100 TeV in 120 bins.
@@ -164,7 +134,7 @@ hIoni: tables are built for anti_proton
Scaling relation is used from proton dE/dx and range.
Delta cross sections and sampling from BetheBloch model for scaled energy > 2 MeV
Parametrisation from Bragg for protons below.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
msc: Model variant of multiple scattering for mu+
Lambda tables from 100 eV to 100 TeV in 120 bins.
@@ -176,7 +146,7 @@ muIoni: tables are built for mu+
Lambda tables from threshold to 100 TeV in 120 bins.
Bether-Bloch model for E > 0.2 MeV, parametrisation of Bragg peak below,
radiative corrections for E > 1 GeV
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
muBrems: tables are built for mu+
dE/dx and range tables from 100 eV to 100 TeV in 120 bins.
@@ -193,7 +163,7 @@ muIoni: tables are built for mu-
Lambda tables from threshold to 100 TeV in 120 bins.
Bether-Bloch model for E > 0.2 MeV, parametrisation of Bragg peak below,
radiative corrections for E > 1 GeV
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
muBrems: tables are built for mu-
dE/dx and range tables from 100 eV to 100 TeV in 120 bins.
@@ -211,7 +181,7 @@ hIoni: tables are built for pi+
Scaling relation is used from proton dE/dx and range.
Delta cross sections and sampling from BetheBloch model for scaled energy > 0.297504 MeV
Parametrisation from Bragg for protons below.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
msc: Model variant of multiple scattering for pi-
Lambda tables from 100 eV to 100 TeV in 120 bins.
@@ -224,7 +194,7 @@ hIoni: tables are built for pi-
Scaling relation is used from proton dE/dx and range.
Delta cross sections and sampling from BetheBloch model for scaled energy > 0.297504 MeV
Parametrisation from Bragg for protons below.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
========= Table of registered couples ==============================
@@ -260,16 +230,16 @@ Index : 2 used in the geometry : Yes recalculation needed : No
Current couple of seeds = 9876, 54321
----------------------------------------
---> End of event: 0
Absorber: total energy: 264.2675 MeV total track length: 18.045359 cm
Gap: total energy: 15.152322 MeV total track length: 6.8321887 cm
Absorber: total energy: 272.21636 MeV total track length: 18.48107 cm
Gap: total energy: 9.18773 MeV total track length: 4.6032016 cm
--------------------End of Run------------------------------
mean Energy in Absorber : 264.2675 MeV +- 0 eV
mean Energy in Gap : 15.152322 MeV +- 0 eV
mean Energy in Absorber : 272.21636 MeV +- 0 eV
mean Energy in Gap : 9.18773 MeV +- 0 eV
mean trackLength in Absorber : 18.045359 cm +- 0 fm
mean trackLength in Gap : 6.8321887 cm +- 0 fm
mean trackLength in Absorber : 18.48107 cm +- 0 fm
mean trackLength in Gap : 4.6032016 cm +- 0 fm
------------------------------------------------------------
Transportation, msc, hIoni, eIoni
@@ -300,7 +270,7 @@ eIoni: tables are built for e-
Lambda tables from threshold to 100 TeV in 120 bins.
Delta cross sections and sampling from MollerBhabha model
Good description from 1 KeV to 100 GeV.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
eBrem: tables are built for e-
dE/dx and range tables from 100 eV to 100 TeV in 120 bins.
@@ -313,7 +283,7 @@ eIoni: tables are built for e+
Lambda tables from threshold to 100 TeV in 120 bins.
Delta cross sections and sampling from MollerBhabha model
Good description from 1 KeV to 100 GeV.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
eBrem: tables are built for e+
dE/dx and range tables from 100 eV to 100 TeV in 120 bins.
@@ -336,7 +306,7 @@ hIoni: tables are built for proton
Scaling relation is used from proton dE/dx and range.
Delta cross sections and sampling from BetheBloch model for scaled energy > 2 MeV
Parametrisation from Bragg for protons below.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
hIoni: tables are built for anti_proton
dE/dx and range tables from 100 eV to 100 TeV in 120 bins.
@@ -344,7 +314,7 @@ hIoni: tables are built for anti_proton
Scaling relation is used from proton dE/dx and range.
Delta cross sections and sampling from BetheBloch model for scaled energy > 2 MeV
Parametrisation from Bragg for protons below.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
msc: Model variant of multiple scattering for mu+
Lambda tables from 100 eV to 100 TeV in 120 bins.
@@ -356,7 +326,7 @@ muIoni: tables are built for mu+
Lambda tables from threshold to 100 TeV in 120 bins.
Bether-Bloch model for E > 0.2 MeV, parametrisation of Bragg peak below,
radiative corrections for E > 1 GeV
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
muBrems: tables are built for mu+
dE/dx and range tables from 100 eV to 100 TeV in 120 bins.
@@ -373,7 +343,7 @@ muIoni: tables are built for mu-
Lambda tables from threshold to 100 TeV in 120 bins.
Bether-Bloch model for E > 0.2 MeV, parametrisation of Bragg peak below,
radiative corrections for E > 1 GeV
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
muBrems: tables are built for mu-
dE/dx and range tables from 100 eV to 100 TeV in 120 bins.
@@ -391,7 +361,7 @@ hIoni: tables are built for pi+
Scaling relation is used from proton dE/dx and range.
Delta cross sections and sampling from BetheBloch model for scaled energy > 0.29750425 MeV
Parametrisation from Bragg for protons below.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
msc: Model variant of multiple scattering for pi-
Lambda tables from 100 eV to 100 TeV in 120 bins.
@@ -404,26 +374,26 @@ hIoni: tables are built for pi-
Scaling relation is used from proton dE/dx and range.
Delta cross sections and sampling from BetheBloch model for scaled energy > 0.29750425 MeV
Parametrisation from Bragg for protons below.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
### Run 1 start.
---> Begin of event: 0
--------- Ranecu engine status ---------
Initial seed (index) = 0
Current couple of seeds = 1253212525, 646045331
Current couple of seeds = 1300673559, 29442236
----------------------------------------
---> End of event: 0
Absorber: total energy: 284.30379 MeV total track length: 19.961055 cm
Gap: total energy: 16.718213 MeV total track length: 7.8970321 cm
Absorber: total energy: 279.69725 MeV total track length: 19.381005 cm
Gap: total energy: 15.528062 MeV total track length: 7.792854 cm
--------------------End of Run------------------------------
mean Energy in Absorber : 284.30379 MeV +- 0 eV
mean Energy in Gap : 16.718213 MeV +- 0 eV
mean Energy in Absorber : 279.69725 MeV +- 0 eV
mean Energy in Gap : 15.528062 MeV +- 0 eV
mean trackLength in Absorber : 19.961055 cm +- 0 fm
mean trackLength in Gap : 7.8970321 cm +- 0 fm
mean trackLength in Absorber : 19.381005 cm +- 0 fm
mean trackLength in Gap : 7.792854 cm +- 0 fm
------------------------------------------------------------
@@ -454,7 +424,7 @@ eIoni: tables are built for e-
Lambda tables from threshold to 100 TeV in 120 bins.
Delta cross sections and sampling from MollerBhabha model
Good description from 1 KeV to 100 GeV.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
eBrem: tables are built for e-
dE/dx and range tables from 100 eV to 100 TeV in 120 bins.
@@ -467,7 +437,7 @@ eIoni: tables are built for e+
Lambda tables from threshold to 100 TeV in 120 bins.
Delta cross sections and sampling from MollerBhabha model
Good description from 1 KeV to 100 GeV.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
eBrem: tables are built for e+
dE/dx and range tables from 100 eV to 100 TeV in 120 bins.
@@ -490,7 +460,7 @@ hIoni: tables are built for proton
Scaling relation is used from proton dE/dx and range.
Delta cross sections and sampling from BetheBloch model for scaled energy > 2 MeV
Parametrisation from Bragg for protons below.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
hIoni: tables are built for anti_proton
dE/dx and range tables from 100 eV to 100 TeV in 120 bins.
@@ -498,7 +468,7 @@ hIoni: tables are built for anti_proton
Scaling relation is used from proton dE/dx and range.
Delta cross sections and sampling from BetheBloch model for scaled energy > 2 MeV
Parametrisation from Bragg for protons below.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
msc: Model variant of multiple scattering for mu+
Lambda tables from 100 eV to 100 TeV in 120 bins.
@@ -510,7 +480,7 @@ muIoni: tables are built for mu+
Lambda tables from threshold to 100 TeV in 120 bins.
Bether-Bloch model for E > 0.2 MeV, parametrisation of Bragg peak below,
radiative corrections for E > 1 GeV
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
muBrems: tables are built for mu+
dE/dx and range tables from 100 eV to 100 TeV in 120 bins.
@@ -527,7 +497,7 @@ muIoni: tables are built for mu-
Lambda tables from threshold to 100 TeV in 120 bins.
Bether-Bloch model for E > 0.2 MeV, parametrisation of Bragg peak below,
radiative corrections for E > 1 GeV
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
muBrems: tables are built for mu-
dE/dx and range tables from 100 eV to 100 TeV in 120 bins.
@@ -545,7 +515,7 @@ hIoni: tables are built for pi+
Scaling relation is used from proton dE/dx and range.
Delta cross sections and sampling from BetheBloch model for scaled energy > 0.29750425 MeV
Parametrisation from Bragg for protons below.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
msc: Model variant of multiple scattering for pi-
Lambda tables from 100 eV to 100 TeV in 120 bins.
@@ -558,25 +528,25 @@ hIoni: tables are built for pi-
Scaling relation is used from proton dE/dx and range.
Delta cross sections and sampling from BetheBloch model for scaled energy > 0.29750425 MeV
Parametrisation from Bragg for protons below.
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1
Step function: finalRange(mm)= 1, dRoverRange= 0.2, integral: 1, fluct: 1
### Run 2 start.
---> Begin of event: 0
--------- Ranecu engine status ---------
Initial seed (index) = 0
Current couple of seeds = 881683015, 1721671407
Current couple of seeds = 225743317, 1902422135
----------------------------------------
---> End of event: 0
Absorber: total energy: 386.07202 MeV total track length: 91.831752 cm
Gap: total energy: 86.0874 MeV total track length: 2.4638487 m
Absorber: total energy: 396.03022 MeV total track length: 94.946029 cm
Gap: total energy: 101.82199 MeV total track length: 2.8245592 m
--------------------End of Run------------------------------
mean Energy in Absorber : 386.07202 MeV +- 0 eV
mean Energy in Gap : 86.0874 MeV +- 0 eV
mean Energy in Absorber : 396.03022 MeV +- 0 eV
mean Energy in Gap : 101.82199 MeV +- 0 eV
mean trackLength in Absorber : 91.831752 cm +- 0 fm
mean trackLength in Gap : 2.4638487 m +- 0 fm
mean trackLength in Absorber : 94.946029 cm +- 0 fm
mean trackLength in Gap : 2.8245592 m +- 0 fm
------------------------------------------------------------