Post Irradiation Examination

Post Irradiation Examination (PIE) is the study of used nuclear materials such as nuclear fuel. It has several purposes. It is known that by examination of used fuel that the failure modes which occur during normal use (and the manner in which the fuel will behave during an accident) can be studied. In addition information is gained which enables the users of fuel to assure themselves of its quality and it also assists in the development of new fuels. After major accidents the core (or what is left of it) is normally subject to PIE in order to find out what happened. One site where PIE is done is the ITU which is the EU centre for the study of highly radioactive materials.

Materials in a high radiation environment (such as a reactor) can undergo unique behaviors such as swelling and non-thermal creep. If there are nuclear reactions within the material (such as what happens in the fuel), the stoichiometry will also change slowly over time. These behaviors can lead to new material properties, cracking, and fission gas release:

Read more about Post Irradiation ExaminationFission Gas Release, Fuel Cracking, Further Reading, External Links

Other articles related to "post irradiation examination":

Post Irradiation Examination - External Links
... IAEA (International Atomic Energy Agency) - Post Irradiation Examination Database. ...

Famous quotes containing the words examination, post and/or irradiation:

    Maybe it’s understandable what a history of failures America’s foreign policy has been. We are, after all, a country full of people who came to America to get away from foreigners. Any prolonged examination of the U.S. government reveals foreign policy to be America’s miniature schnauzer—a noisy but small and useless part of the national household.
    —P.J. (Patrick Jake)

    To the old saying that man built the house but woman made of it a “home” might be added the modern supplement that woman accepted cooking as a chore but man has made of it a recreation.
    —Emily Post (1873–1960)

    You will see Coleridge—he who sits obscure
    In the exceeding lustre and the pure
    Intense irradiation of a mind,
    Which, with its own internal lightning blind,
    Flags wearily through darkness and despair—
    A cloud-encircled meteor of the air,
    A hooded eagle among blinking owls.
    Percy Bysshe Shelley (1792–1822)