Feasibility Study of Two-Dimensional Neutron-Resonance Thermometry using Molybdenum in 316 Stainless-Steel

Feasibility Study of Two-Dimensional Neutron-Resonance Thermometry using Molybdenum in 316 Stainless-Steel

Tetsuya Kai, Kosuke Hiroi, Yuhua Su, Mariko Segawa, Takenao Shinohara, Yoshihiro Matsumoto, Joseph D. Parker, Hirotoshi Hayashida, Kenichi Oikawa

Abstract. The energy-dependence of neutrons were measured through a 3-mm thick 316 stainless-steel with homogeneous temperatures from room temperature to about 500 degrees Celsius to investigate whether molybdenum contained in 316 stainless-steel was available as a sensor material for neutron resonance thermometry. Dips in the energy spectra around the 44.8 eV resonance of molybdenum were broadened with the increasing temperature, and a calibration line from width to temperature was obtained. A neutron measurement was also carried out for a 316 stainless-steel plate having a temperature distribution. By analyzing the width of the resonance at each position, a reasonable temperature distribution was obtained. Molybdenum contained in 316 stainless-steel was found to be useful for neutron resonance thermometry.

Keywords
Temperature Measurement, RADEN, GEM Detector, Neutron Transmission, Reliability, Energy Dependent Imaging, Width, Time of Flight

Published online 1/5/2020, 5 pages
Copyright © 2020 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Tetsuya Kai, Kosuke Hiroi, Yuhua Su, Mariko Segawa, Takenao Shinohara, Yoshihiro Matsumoto, Joseph D. Parker, Hirotoshi Hayashida, Kenichi Oikawa, Feasibility Study of Two-Dimensional Neutron-Resonance Thermometry using Molybdenum in 316 Stainless-Steel, Materials Research Proceedings, Vol. 15, pp 149-153, 2020

DOI: https://doi.org/10.21741/9781644900574-23

The article was published as article 23 of the book Neutron Radiography

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

References
[1] T. Kai, K. Hiroi, Y. Su, T. Shinohara, J. D. Parker, et al., Reliability estimation of neutron resonance thermometry using tantalum and tungsten, Phys. Procedia 88 (2017) 306-313. https://doi.org/10.1016/j.phpro.2017.06.042
[2] M.C. Moxon, T. C. Ware, C. J. Dean, Users’ guide for REFIT-2009-10, UKNSF(2010)P243, UK Nuclear Science Forum, 2010.
[3] H. Hasemi, M. Harada, et al., Evaluation of nuclide density by neutron resonance transmission at the NOBORU instrument in J-PARC/MLF, Nucl. Instrum. Method. A 773 (2014) 137-149. https://doi.org/10.1016/j.nima.2014.11.036
[4] T. Shinohara, T. Kai, K. Oikawa, M. Segawa, et al., Final design of the energy-resolved neutron imaging system “RADEN” at J-PARC, J. Phys.: Conf. Series 746 (1) (2016) 012007. https://doi.org/10.1088/1742-6596/746/1/012007
[5] S. Uno, T. Uchida, M. Sekimoto, T. Murakami, K. Miyama, M. Shoji, et al., Two-dimensional neutron detector with GEM and its applications. Physics Procedia 26 (2012) 142. https://doi.org/10.1016/j.phpro.2012.03.019