Page 116 - Radiation Safety
P. 116

• Indirect action:



                                      • The ionizing radiation interact with water


                                          molecules producing ion pairs.


                                      • The electron resulted from the interaction


                                          interact with another water molecules


                                                                                                                                                                  -
                                      • Water molecules break into free radical (OH )

                                                                                               +
                                          and hydrogen ion (H )


                                      • The free radical is very reactive as it interact

                                          and breaks the DNA structure
   111   112   113   114   115   116   117   118   119   120   121