Source of Support: None, Conflict of Interest: None
Ionizing radiations have been extensively used in therapeutic and diagnostic radiology and also in biomedical research. The risks In biomedical research. The risks in handling the radiation sources are not unknown, if the safety guidelines are not followed properly. Even if all the safety precautions are observed, there are unforeseen situation leading to radiation exposure of the occupational workers or a section of population. In individuals by physical methods is rather hypothetical. Thus we have to depend only on biological effects produced by radiation exposure. It is well known that among all the biological effects induced by radiations, chromosomal aberrations are the most conspicuous and reliable. We have established dose response relationship and have been using them to estimate the radiation done in partial/whole body exposures. Results of our experiments and their possible use in radiation dosimetry particularly for radiological protection shall be presented.