Tritium Production-Rate Measurement Techniques Developed at FNS/JAERI

Hiroshi Maekawa; Fujio Maekawa; Yukio Oyama; Chikara Konno; Yujio Ikeda; Kouichi Tsuda; Seiya Yamaguchi

doi:dx.doi.org/10.13182/FST94-A40298

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Tritium Production-Rate Measurement Techniques Developed at FNS/JAERI

Hiroshi Maekawa, Fujio Maekawa, Yukio Oyama, Chikara Konno, Yujio Ikeda, Kouichi Tsuda, Seiya Yamaguchi

Fusion Science and Technology / Volume 26 / Number 3P2 / November 1994 / Pages 1086-1091

Fusion Blanket, Shield, and Neutronic Technology / Proceedings of the Eleventh Topical Meeting on the Technology of Fusion Energy New Orleans, Louisiana June 19-23, 1994 / dx.doi.org/10.13182/FST94-A40298

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The tritium production-rate (TPR) is a very important neutronic parameter in the D-T fusion blanket research. The following five techniques for the measurement of TPR have been developed at FNS/JAERI: (1) Subtraction method using a pair of Li-glass scintillators, (2) Indirect method using a small sphere NE213 scintillator, (3) Liquid scintillation method with Li₂O pellet, (4) Liquid scintillation method with Li₂O plate/block (zonal method), and (5) LiF TLD self-irradiation method. This paper describes these methods, comparison of their features, and their typical results for the blanket benchmark experiments at FNS.