Ionizing radiation becquerel

Lind (1961) defines radiation chemistry as the science of the chemical effects brought about by the absorption of ionizing radiation in matter. It can be said that in 1895, along with X-rays, Roentgen also discovered the chemical action of ionizing radiation. He drew attention to the similarity of the chemical effects induced by visible light and X-rays on the silver salt of the photographic plate. This was quickly followed by the discovery of radioactivity of uranium by Becquerel in 1896. In 1898, the Curies discovered two more radioactive elements—polonium and radium. 

A comprehensive description of the nature of radioactivity and its interaction with matter is beyond the scope of this chapter, and such information can easily be found elsewhere (Shleien et al., 1998 CPEP, 2003 Tykva, 2004). Here we give only a brief sketch of the basic principles. Radioactivity is a natural phenomenon, discovered in 1896 by Henri Becquerel. The nuclei of some atoms are unstable and decay spontaneously, emitting ionizing radiation to attain a more energetically favorable state. Radioisotopes are characterized by the nature of the... 

In the field of ionizing radiation, the SI unit of activity is designated the becquerel rather than the reciprocal second, and the SI... 

Similarly, in the field of ionizing radiation, the SI unit of activity is designated as the becquerel (Bq) rather than the reciprocal second (s ), and the SI units of absorbed dose and dose equivalent are designated as the gray (Gy) and the sievert (Sv), respectively, rather than the joule per kilogram (J/kg). 

Physica.1 The energy level of ionizing radiation is measured as megaelectron volts (MeV). The amount of ionizing radiation released by a material regardless of the type of radiation has the measure curie (Ci) in British Units. In metric units the measure is becquerel (Bq). A curie (Ci) is the amount of radioactive material that has a disintegration rate of 3.7 X 10 °atoms/s. 

X rays were discovered by German physicist Wilhelm Rontgen in 1895, and radiation emitted from uranium and other radioactive elements was discovered by French physicists Henri Becquerel, Marie Curie, and Pierre Curie shortly thereafter. Patents were issued for food preservation using ionizing radiation in 1905 and for the use of X rays to destroy Trichinella in pork in 1921. 

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