21. The process of alpha decay is in essence a special type of spontaneous nuclear fission. 22. Radioisotopes undergoing alpha decay are a concern due to their tendency to cause soft errors. 23. Small amounts of helium are also present in uraninite as a result of alpha decay . 24. Due to the radioactive alpha decay of plutonium, PuO 2 is warm to the touch. 25. Atomic radioactive decay pathways, most commonly alpha decay , beta decay, or electron capture. 26. Another example is the alpha decay of to form; which is followed by gamma emission. 27. Alpha decay is characterized by the emission of an alpha particle, a 4 He nucleus.28. His ASAF model provides a unified approach of cold fission, cluster decay and alpha decay . 29. Why then energy of alpha decay of At-211 exceeds that of At-210? 30. Its alpha decay half-life is in accordance : the shortest of all astatine isotopes.