Study of radiation damage in nuclear materials by positron lifetime spectroscopy

ORAL

Abstract

Microstructure of four different oxide-dispersion-strengthened (ODS) steels (KAERI-A, B, C, D) with 12{\%} chromium content was studied in term of vacancy defects presence and their accumulation due to irradiation. Radiation damage was simulated by implantation of $^{2+}$He ions via a linear accelerator at the Laboratory of ion beams of the Slovak University of Technology. A second set of samples was irradiated by neutrons in Washington State University Nuclear Radiation Center. A comparison of simulated damage by $^{2+}$He and damage dealt by real reactor environment was evaluated by positron lifetime measurements in emphasis on defect accumulation.

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Authors

  • Iveta Barto\v{s}ov\'a

    Institute of Nuclear and Physical Engineering, Slovak University of Technology in Bratislava, Ilkovi\v{c}ova 3, 812 19 Bratislava, Slovak Republic

  • Zachary Richards

    Washington State University, Department of Physics, Bowling Green State University, 104 Overman Hall, OH 43403, USA, Nuclear Radiation Center, PO Box 641300, Washington State University, Pullman, WA 99164-1300, USA, Institute of Nuclear and Physical Engineering, Slovak University of Technology in Bratislava, Ilkovi\v{c}ova 3, 812 19 Bratislava, Slovak Republic, Air Force Institute of Technology, Oak Ridge Institute of Science and Education, Bowling Green State University, Department of Chemistry and Biochemistry, Southern Illinois University, Purdue University, University of Toledo

  • Zachary Richards

    Washington State University, Department of Physics, Bowling Green State University, 104 Overman Hall, OH 43403, USA, Nuclear Radiation Center, PO Box 641300, Washington State University, Pullman, WA 99164-1300, USA, Institute of Nuclear and Physical Engineering, Slovak University of Technology in Bratislava, Ilkovi\v{c}ova 3, 812 19 Bratislava, Slovak Republic, Air Force Institute of Technology, Oak Ridge Institute of Science and Education, Bowling Green State University, Department of Chemistry and Biochemistry, Southern Illinois University, Purdue University, University of Toledo

  • Zachary Richards

    Washington State University, Department of Physics, Bowling Green State University, 104 Overman Hall, OH 43403, USA, Nuclear Radiation Center, PO Box 641300, Washington State University, Pullman, WA 99164-1300, USA, Institute of Nuclear and Physical Engineering, Slovak University of Technology in Bratislava, Ilkovi\v{c}ova 3, 812 19 Bratislava, Slovak Republic, Air Force Institute of Technology, Oak Ridge Institute of Science and Education, Bowling Green State University, Department of Chemistry and Biochemistry, Southern Illinois University, Purdue University, University of Toledo

  • Zachary Richards

    Washington State University, Department of Physics, Bowling Green State University, 104 Overman Hall, OH 43403, USA, Nuclear Radiation Center, PO Box 641300, Washington State University, Pullman, WA 99164-1300, USA, Institute of Nuclear and Physical Engineering, Slovak University of Technology in Bratislava, Ilkovi\v{c}ova 3, 812 19 Bratislava, Slovak Republic, Air Force Institute of Technology, Oak Ridge Institute of Science and Education, Bowling Green State University, Department of Chemistry and Biochemistry, Southern Illinois University, Purdue University, University of Toledo