Kinetic energy radioactive particles

The development of particle accelerators grew out of the discovery of radioactivity in uranium by Henri Becquerel in Paris in 1896. Some years later, due to the work of Ernest Rutherford and others, it was found that the radioactivity discovered by Becquerel was the emission o particles with kinetic energies o several MeV from uranium nuclei. Research using the emitted particles began shortly thereafter. It was soon realized that if scientists were to learn more about the properties of subatomic particles, they had to be accelerated to energies greater than those attained in natural radioactivity. 

The kinetic energies (KEs) of the photoelectrons are measured by the use of a modification of a conventional p-ray spectrometer as used in the study of p-particle (electron) emissions from radioactive nuclei. The... 

Calculate the maximum kinetic energy of the beta particle emitted in the radioactive decay of 6He. Assume that the beta particle has maximum energy when no other emission is involved. 

The beta decay of that is a natural part of the body makes all human beings slightly radioactive. An adult weighing 70.0 kg contains about 170 g of potassium. The relative natural abundance oU °K is 0.0118%, its half-life is 1.28 X 10 years, and its beta particles have an average kinetic energy of 0.55 MeV. 

The nuclide Be undergoes spontaneous radioactive decay to °B with emission of a beta particle. Calculate the maximum kinetic energy of the emitted beta particle. 

The radioactive nuclide 29CU decays by beta emission to loZn or by positron emission to fsNi- The maximum kinetic energy of the beta particles is 0.58 MeV, and that of the positrons is 0.65 MeV. The mass of the neutral Cu atom is 63.92976 u. 

The particles can be emitted at different kinetic energies. In addition, radioactive decay often leaves a nucleus in an excited (high-energy) state. Then the decay is followed by gamma ray emission. 

Technetium (Tc Z = 43) is a synthetic element used as a radioactive tracer in medical studies. A Tc atom emits a beta particle (electron) with a kinetic energy (Ek) of 4.71 X10 J. What is the de Broglie wavelength of this electron (f =... 

Other forms of energy. Rutherford used a-particles from the radioactive decay of Po, which have kinetic energies of 7.68 MeV. The products, therefore, had considerable kinetic energy, which is shown by the thick tracks in the cloud chamber picture of Figure 12.6. 

When a radioactive atom is born , electromagnetic radiation or some sort of particle, e.g. a neutron or proton or alpha particle, etc., is emitted from the nucleus. The emitted particle or radiation and the newly formed atom carry away the energy released in the reaction. The kinetic energies involved are high indeed and cause the newly formed atom to move many Angstroms into the surrounding material before finally coming to rest. 

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