Radioactive - Law Dictionary Search Results
Fissile material and radioactive material
Fissile material and radioactive material, shall have same meaning assigned to these expressions in
Half life
decaying in a first order reaction to be destroyed For radioactive substances it is the time required for one half of
Radon
An intensely radioactive gaseous element produced by the radioactive decay of radium 226
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Mesothorium
a radioactive isotope of radium radium 228 with a half life of
Gamma ray
appreciably deflected by a magnetic or electric field emitted by radioactive substances Gamma rays are photons of electromagnetic radiation having a
radioactivity
is therefore called ionizing radiation The radiation emitted by most radioactive substances is one of three types alpha rays beta rays
radiothorium
228 given by its discoverer Otto Hahn It is a radioactive substance formed as one of series of products in the
Helium
helium is therefore formed as a decomposition product of certain radioactive substances such as radium The normal helium nucleus has two
Radium
An intensely radioactive metallic element found combined in minute quantities in pitchblende and
radioactive
Capable of luminescence under the action of cathode rays X rays or any of the allied forms of radiation
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