POSSIBILITY OF USING GAMMA RADIATION FROM HTR REACTORS FOR PROCESSING OF FOOD AND MEDICAL PRODUCTS

摘要

During the fission process in most of the presently operating nudear reactors nudear energy is converted into thermal energy and transferred to common steamcydes for powergeneration. As part of the fission process also α-, β- and neutrons particles are released from the nudeus; the release of gamma-rays is also a part of the fission process. In present nudear reactors α-, β-, neutrons partdes and particularly Gamma-rays are not gainfully used as a result of the reactor design and of the containment These plants are built as required by regulations and international standards for safety. The inherently safe HTR reactor, by its physics and desgn, does not need a spedal reinforced containment and it is worth looking into the possibilities of this design feature to use the by-products, such as Gamma-rays, from nudear fission. In the HTR Pebble Bed Reactors the α-, and β-partides will remain in the kernels in the pebbles. This means that only the neutron particles and gamma-rays will be available outside the reactor pressure vessel. In this report a proposal is presented to use the gamma-rays of the HTR reactor for irradiation of food and agricultural produce. For neutron shielding a reflector is placed inside the reactor while outside the reactor neutron- and thermal-shielding will be accomplished with water. Inherent Safety, Natural Safety System, Natural Cooling System, Radiation Processing of Food and Medical Products.