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Neutron performance and future prospect of the compact electron accelerator-driven neutron facility AISTANS

Author

Listed:
  • Koichi Kino
  • Takeshi Fujiwara
  • Michihiro Furusaka
  • Takemi Muroga
  • Brian E. O’Rourke
  • Nagayasu Oshima
  • Yo Tomota

Abstract

The neutron wavelength resolution, Bragg-edge measurement ability and future prospects regarding the neutron count rate were investigated at AISTANS. The wavelength resolution evaluated by Bragg-edge analysis using an iron powder sample is in reasonably good agreement with calculations at neutron wavelengths of 0.2–0.3 nm. Bragg-edge imaging was also performed on a steel plate sample with distinct regions of BCC and FCC crystallinity, and the different crystal structures were successfully discriminated. In addition, an aluminum sample containing a friction stir spot welding region was also measured and the 200 and 111 Bragg-edges at the two joining areas were observed. However, it was hard to characterize the difference in texture between the two areas. The neutron counting rate for Bragg-edge imaging is expected to increase by approximately a factor 50 in the near future thanks to the planned improvements of the electron beam power and the detection efficiency of the neutron detector.

Suggested Citation

  • Koichi Kino & Takeshi Fujiwara & Michihiro Furusaka & Takemi Muroga & Brian E. O’Rourke & Nagayasu Oshima & Yo Tomota, 2022. "Neutron performance and future prospect of the compact electron accelerator-driven neutron facility AISTANS," Jadavpur Journal of International Relations, , vol. 24(3-4), pages 395-401, December.
    • Handle: RePEc:sae:jadint:v:24:y:2022:i:3-4:p:395-401
    DOI: 10.3233/JNR-220022
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