tritium
From Noah.org
Jump to navigationJump to search
Tritium bremsstrahlung is easy to detect with a sensitive Geiger counter.
I used a GM45 which has a pancake detector with a beryllium window.
I measured 400 CPM from a tritium source used in a luminescent marker.
The tritium source was behind 1 mm of glass, 4 mm of acrylic, and 20 mm of air.
Tritium beta decay energy: 0.018590 MeV (kVp=18.6 keV, kVaverage=5.7 keV)
Acrylic glass
- Molecular formula: (C5O2H8)n
- Density: 1.18 g/cm<super>3</super>
Energy(MeV) μ/ρ(cm2/g) μen/ρ(cm2/g) 1.00000E-03 2.794E+03 2.788E+03 1.50000E-03 9.153E+02 9.131E+02 2.00000E-03 4.037E+02 4.024E+02 3.00000E-03 1.236E+02 1.228E+02 4.00000E-03 5.247E+01 5.181E+01 5.00000E-03 2.681E+01 2.627E+01 6.00000E-03 1.545E+01 1.498E+01 8.00000E-03 6.494E+00 6.114E+00 1.00000E-02 3.357E+00 3.026E+00 1.50000E-02 1.101E+00 8.324E-01 2.00000E-02 5.714E-01 3.328E-01 3.00000E-02 3.032E-01 9.645E-02 4.00000E-02 2.350E-01 4.599E-02 5.00000E-02 2.074E-01 3.067E-02 6.00000E-02 1.924E-01 2.530E-02 8.00000E-02 1.751E-01 2.302E-02 1.00000E-01 1.641E-01 2.368E-02 1.50000E-01 1.456E-01 2.657E-02 2.00000E-01 1.328E-01 2.872E-02 3.00000E-01 1.152E-01 3.099E-02 4.00000E-01 1.031E-01 3.185E-02 5.00000E-01 9.410E-02 3.206E-02 6.00000E-01 8.701E-02 3.191E-02 8.00000E-01 7.641E-02 3.116E-02 1.00000E+00 6.870E-02 3.015E-02 1.25000E+00 6.143E-02 2.882E-02 1.50000E+00 5.591E-02 2.755E-02 2.00000E+00 4.796E-02 2.533E-02 3.00000E+00 3.844E-02 2.210E-02 4.00000E+00 3.286E-02 1.995E-02 5.00000E+00 2.919E-02 1.843E-02 6.00000E+00 2.659E-02 1.731E-02 8.00000E+00 2.317E-02 1.579E-02 1.00000E+01 2.105E-02 1.482E-02 1.50000E+01 1.820E-02 1.348E-02 2.00000E+01 1.684E-02 1.282E-02
borosilicate glass
Energy(MeV) μ/ρ(cm2/g) μen/ρ(cm2/g) 1.00000E-03 3.164E+03 3.155E+03 1.03542E-03 2.887E+03 2.879E+03 1.07210E-03 2.634E+03 2.627E+03 1.07210E-03 2.800E+03 2.790E+03 # 11K 1.50000E-03 1.152E+03 1.148E+03 1.55960E-03 1.037E+03 1.033E+03 1.55960E-03 1.079E+03 1.073E+03 # 13K 1.69350E-03 8.629E+02 8.583E+02 1.83890E-03 6.883E+02 6.845E+02 1.83890E-03 1.776E+03 1.723E+03 # 14K 2.00000E-03 1.500E+03 1.457E+03 3.00000E-03 5.123E+02 5.011E+02 3.60740E-03 3.098E+02 3.036E+02 3.60740E-03 3.133E+02 3.067E+02 # 19K 4.00000E-03 2.355E+02 2.307E+02 5.00000E-03 1.260E+02 1.235E+02 6.00000E-03 7.500E+01 7.337E+01 8.00000E-03 3.269E+01 3.178E+01 1.00000E-02 1.705E+01 1.642E+01 1.50000E-02 5.217E+00 4.828E+00 2.00000E-02 2.297E+00 1.995E+00 3.00000E-02 7.987E-01 5.684E-01 4.00000E-02 4.341E-01 2.361E-01 5.00000E-02 3.022E-01 1.235E-01 6.00000E-02 2.417E-01 7.648E-02 8.00000E-02 1.890E-01 4.230E-02 1.00000E-01 1.657E-01 3.209E-02 1.50000E-01 1.389E-01 2.727E-02 2.00000E-01 1.246E-01 2.757E-02 3.00000E-01 1.069E-01 2.885E-02 4.00000E-01 9.540E-02 2.946E-02 5.00000E-01 8.696E-02 2.957E-02 6.00000E-01 8.035E-02 2.941E-02 8.00000E-01 7.052E-02 2.868E-02 1.00000E+00 6.337E-02 2.774E-02 1.25000E+00 5.667E-02 2.650E-02 1.50000E+00 5.160E-02 2.533E-02 2.00000E+00 4.447E-02 2.337E-02 3.00000E+00 3.611E-02 2.069E-02 4.00000E+00 3.140E-02 1.904E-02 5.00000E+00 2.838E-02 1.795E-02 6.00000E+00 2.632E-02 1.721E-02 8.00000E+00 2.373E-02 1.629E-02 1.00000E+01 2.223E-02 1.579E-02 1.50000E+01 2.045E-02 1.522E-02 2.00000E+01 1.982E-02 1.503E-02