Food irradiation, a treatment of food by ionizing energy of gamma, electron beam or X-rays, with its unique advantages, is emerging as an important food processing method. It can be used for improving food security, ensuring food safety, and for obtaining market access by overcoming quarantine barriers to international trade. The need for reliable and routine testing methods to determine whether or not food has been irradiated has arisen as a result of the increased commercialization of the technology, growth in international trade in irradiated foods, and demand for labeling of the treated...