Least fission fragment K.E needed for ionization
Simulation Conditions and constraints
Detector Construction
The detector is designed based on example N03, a Ar/CO2 (90-10) layer absorber of thickness 10 cm, and has 1 atmospheric pressure and 300 K temperature.
Physics List
G4hIonization is the process under the generic ion, electrons are expected to scatter in all directions, only the Bremsstrahlung process is concerned.
Projectiles
From the mass distribution spectrum below, a peak exists for A=103 and another for A=83 for Th-232 fission reaction.
The same fragments are used as projectiles toward the absorber.
One of the element tested is O-17, the minimum energy to emit a tracked electron is 8 MeV, otherwise the table will mention hionization.
- O-17 with K.E = 7 MeV
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* G4Track Information: Particle = O17[0.0], Track ID = 1, Parent ID = 0
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Step# X Y Z KineE dEStep StepLeng TrakLeng Volume Process
0 -7.2 mm 0 fm 0 fm 7 MeV 0 eV 0 fm 0 fm World initStep
1 -6 mm 0 fm 0 fm 7 MeV4.25e-16 eV 1.2 mm 1.2 mm World Transportation
2 4 mm 0 fm 0 fm 7 MeV3.54e-15 eV 1 cm 1.12 cm Layer Transportation
3 4.09 mm 0 fm 0 fm 6.87 MeV 125 keV 89.4 um 1.13 cm ArCO2 hIoni
4 4.11 mm 0 fm 0 fm 6.85 MeV 22.1 keV 21.8 um 1.13 cm ArCO2 hIoni
5 4.14 mm 0 fm 0 fm 6.82 MeV 37.2 keV 29.3 um 1.13 cm ArCO2 hIoni
6 4.41 mm 0 fm 0 fm 6.4 MeV 413 keV 272 um 1.16 cm ArCO2 hIoni
7 4.59 mm 0 fm 0 fm 6.17 MeV 231 keV 174 um 1.18 cm ArCO2 hIoni
8 6.65 mm 0 fm 0 fm 2.8 MeV 3.38 MeV 2.06 mm 1.39 cm ArCO2 hIoni
9 8.29 mm 0 fm 0 fm 0 eV 2.8 MeV 1.64 mm 1.55 cm ArCO2 hIoni
---> End of event: 0
Absorber: total energy: 7 MeV total track length: 4.28725 mm
Gap: total energy: 0 eV total track length: 0 fm
Run terminated.
Run Summary
Number of events processed : 1
User=0s Real=0.09s Sys=0s
--------------------End of Run------------------------------
mean Energy in Absorber : 7 MeV +- 0 eV
mean Energy in Gap : 0 eV +- 0 eV
mean trackLength in Absorber : 4.28725 mm +- 0 fm
mean trackLength in Gap : 0 fm +- 0 fm
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