section and the resonance integral for some of the important LLFPs and MAs by the
activation method.
Operation of a new experimental apparatus called the accurate neutron nucleus
reaction measurement instrument (ANNRI) in the MLF at J-PARC has been started
for neutron capture cross-section measurements of MAs and LLFPs. Some of the
highlights of our results have been shown here.
Acknowledgments The authors thank the staff at Kyoto University Reactor Institute, Rikkyo
University Reactor and JRR-3M. A part of this work has been carried out under the Visiting
Researcher’s Program of the Research Reactor Institute, Kyoto University. Moreover, the authors
appreciate the accelerator staff of J-PARC for their operation of the accelerator.
This work is supported by JSPS KAKENHI (22226016).
Open Access This chapter is distributed under the terms of the Creative Commons Attribution
Noncommercial License, which permits any noncommercial use, distribution, and reproduction in
any medium, provided the original author(s) and source are credited.
References
1. Westcott CH et al (1958) Proceedings of 2nd International Conference on Peaceful Uses of
Atomic Energy, Geneva, vol 16, United Nations, New York, p. 70
2. Stupegia DC (1960) J Nucl Energ A12:16
3. Harada H et al (1990) J Nucl Sci Technol 27(6):577
Fig. 5.5
93
Zr cross section (tentative data) together with the evaluated data
5 Precise Measurements of Neutron Capture Cross Sections for LLFPs and MAs
45