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nuclear physics

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					                                            NUCLEAR PHYSICS
                                              Mohammad Imran Aziz
                                               Assistant Professor
                                               Physics Department
                                      Shibli National Post Graduate College
                                   Azamgarh,India.(aziz_muhd33@yahoo.co.in)


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                                                     RADIOACTIVITY




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      • Radioactivity
      • • Is an ability of conversion of certain atoms to
      • other atoms and is accompanied by the
      • emission of radioactive radiation
      • – Parent and daughter atoms
      • • Natural radioactivity
      • – Henry Becqerel 1885,
      • – Radioactive element Ra – 1888 Marie and Pierre Curie
      • • Artificial radioactivity
      • – Radioactive elements produced by bombarding stable
        elements with
      • high energy particles
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                               Exponential time course of
                                   radioactive decay




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      • Activity
      • • It is a dosimetric quantity
      • – measured by number of disintegrations N per
        time unit t
      • – SI unit of activity is 1 Bq (Becquerel)
      • – 1 Bq is activity of radioactive substance, where
        one
      • disintegration occurs per one second 1Bq = 1/1s =
        [s-1]
      • – Non SI unit = 1 Curie = 3.7*1010 Bq = 37 GBq
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                        NUCLEAR BINDING ENERGY



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                                       NUCLEAR REACTION




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posted:2/24/2010
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Description: basic formula of nuclear physics