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  2. Alpha particle - Wikipedia

    en.wikipedia.org/wiki/Alpha_particle

    Secondly, he found the charge-to-mass ratio of alpha particles to be half that of the hydrogen ion. Rutherford proposed three explanations: 1) an alpha particle is a hydrogen molecule (H 2) with a charge of 1 e; 2) an alpha particle is an atom of helium with a charge of 2 e; 3) an alpha particle is half a helium atom with a charge of 1 e.

  3. Radioactive decay - Wikipedia

    en.wikipedia.org/wiki/Radioactive_decay

    The alpha particle is an especially strongly bound nucleus, helping it win the competition more often. [57]: 872 However some nuclei break up or fission into larger particles and artificial nuclei decay with the emission of single protons, double protons, and other combinations. [55] Beta decay transforms a neutron into proton or vice versa.

  4. Alpha strike (engineering) - Wikipedia

    en.wikipedia.org/wiki/Alpha_strike_(engineering)

    Alpha strikes are limiting the computing capabilities of computers onboard high-altitude vehicles as the energy an alpha particle imparts on the transistors of a computer is far more consequential for smaller transistors. As a result, computers with smaller transistors and higher computing capability are more prone to errors and crashes than ...

  5. Atomic recoil - Wikipedia

    en.wikipedia.org/wiki/Atomic_recoil

    For similar decay energies, the recoil from emitting an alpha ray will be much greater than the recoil from emitting a neutrino (upon electron capture) or a gamma ray. For decays that produce two particles as well as the daughter nuclide, the above formulas can be used to find the maximum energy, momentum, or speed of any of the three, by ...

  6. Naturally occurring radioactive material - Wikipedia

    en.wikipedia.org/wiki/Naturally_occurring...

    Naturally occurring radioactive materials (NORM) and technologically enhanced naturally occurring radioactive materials (TENORM) consist of materials, usually industrial wastes or by-products enriched with radioactive elements found in the environment, such as uranium, thorium and potassium and any of their decay products, such as radium and radon. [1]

  7. Alpha strike - Wikipedia

    en.wikipedia.org/wiki/Alpha_strike

    Alpha strike may refer to: Alpha strike (engineering), when an alpha particle enters and causes damage to the data contained in a computer processor; Alpha strike (gaming), a massive, all-out attack, as in a tabletop wargame; Alpha strike (United States Navy), a large air attack by an aircraft carrier air wing

  8. Alpha decay - Wikipedia

    en.wikipedia.org/wiki/Alpha_decay

    Computing the total disintegration energy given by the equation = (), where m i is the initial mass of the nucleus, m f is the mass of the nucleus after particle emission, and m p is the mass of the emitted (alpha-)particle, one finds that in certain cases it is positive and so alpha particle emission is possible, whereas other decay modes ...

  9. Diffusing alpha emitters radiation therapy - Wikipedia

    en.wikipedia.org/wiki/Diffusing_alpha_emitters...

    Alpha radiation is a nuclear phenomenon in which a heavy radionuclide emits an energetic alpha particle (consisting of two protons and two neutrons) and transmutes to a different radionuclide. The emitted alpha particle has a range in tissue of only 40-90 microns, which minimizes collateral damage when used for treatment purposes.

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