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Introduction |
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Neutron Activation Analysis is a
representative and the most sensitive method of nuclear analytical
techniques used for qualitative and quantitative analysis. Like the
above described figure, while unknown sample is irradiated by neutrons
in nuclear reactor, the target nuclides(stable nuclides) in sample
undergo neutron capture reactions and are converted to radioactive
nuclides(unstable nuclides) emitting beta particles and gamma-rays.
Elemental content in sample can be determined by the measurement of
prompt gamma-rays emitted from the exited compound nucleus during
neutron irradiation or of delayed gamma-rays from the radioactive
nuclides created after irradiation. The former is called PGAA, the
latter is INAA. Since the number of characteristic gamma-ray emitted
per unit time from the interesting nuclides created by nuclear
reaction is proportional to neutron flux and the amount of stable
isotope, elemental content in the sample can be obtained if the
neutron flux of irradiation hole and the nuclear characteristics of
interesting nuclides are estimated.
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GOALS |
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Improve the public welfare |
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Support localization and Strengthen the competitiveness on the
international RI market. |
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Develop advanced technologies of RI production and handling |
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Maximize the utilization of HANARO |
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Increase public acceptance of atomic energy |
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WORK SCOPES |
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Development of radioisotopes for
medical and industrial use |
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Enhancement of RI handling technologies |
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Production of fission Mo-99 and Tc-99m generator |
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Development of radiolabeled compounds |
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