I have read czech patent 284333. I dont understand french but from the first view i think its identical with french patent 2680613. Author of french and czech patent is the same - Michel Meyer only co-authors are different.
In the description its written that device is ecological and safe. No mention about radioactivity level (weird). Projected output power 50kW, iron rod lifetime 2400hours, time needed for start-up 15 min (after this time device is automatically disconnected from grid and uses part of its output power to feed itself).
Regarding radiocative materials i heard that the longer half-life means greater danger. Then half-life of 54Fe (3.1x10^22 years) should be very bad. But maybe this is not true because 3.1x10^22 is extremely large half-time (larger than cosmos age). If you read wikipedia article you find the note that 54Fe is stable (i.e. radioactive decay is very very slow maybe can be neglected, who knows).
Hi Jan.
you have it backwards, the shorter half life means that the isotope decays faster and with more energy.
imagine 1lb of an isotope that has a half life of 1 second, this would be totally lethal if unprotected, some isotopes with 1 second half life are considered SF or Spontaneous fission and that is lethal itself, longer half lives are more stable.
Gamma ray and or Neutron emitters are lethal especially whether they are short lived or not but still follow this rule.. Alpha or Beta are a bit safer but respect is still in order.
about 54Fe:
26-Fe-54
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Atomic Mass: 53.9396148 ± 0.0000014 amu
Excess Mass: -56248.410 ± 1.328 keV
Binding Energy: 471758.653 ± 1.330 keV
Beta Decay Energy: B- -8243.079 ± 0.221 keV
--------------------------------------------------------------------------------
Atomic Percent Abundance: 5.845% 35
Spin: 0+
Stable Isotope
Possible parent nuclides:
Beta from Mn-54
Electron capture from Co-54
--------------------------------------------------------------------------------
Total Cross Section
at 0.0253 eV = 2.649 b
Maxwell avg. at 0.0253 eV = 2.404 b
at 14 MeV = 2.498 b
Fission spectrum avg. = 3.658 b
g-factor = 1.0243
Elastic Scattering Cross Section
at 0.0253 eV = 492.9 mb
Maxwell avg. at 0.0253 eV = 492.9 mb
at 14 MeV = 1.080 b
Fission spectrum avg. = 3.235 b
g-factor = 1.1284
Total Inelastic Cross Section
at 14 MeV = 481.5 mb
Fission spectrum avg. = 335.9 mb
(n,2n) Cross Section
at 14 MeV = 1.203 mb
Fission spectrum avg. = 1.032 micro barn
(n,na) Cross Section
at 14 MeV = 120.8 micro barn
Fission spectrum avg. = 0.1892 micro barn
(n,np) Cross Section
at 14 MeV = 490.6 mb
Fission spectrum avg. = 138.0 micro barn
Radiative Capture Cross Section
at 0.0253 eV = 2.156 b
Maxwell avg. at 0.0253 eV = 1.911 b
Resonance integral = 1.323 b
at 14 MeV = 136.1 micro barn
Fission spectrum avg. = 6.069 mb
g-factor = 1.0003
(n,p) Cross Section
at 14 MeV = 361.0 mb
Fission spectrum avg. = 80.71 mb
(n,alpha) Cross Section
at 0.0253 eV = 1.237800e-19 b
Maxwell avg. at 0.0253 eV = 2.476090e-19 b
Resonance integral = 68.03 mb
at 14 MeV = 83.17 mb
Fission spectrum avg. = 864.7 micro barn
g-factor = 2.2572
Jerry