Triton burn-up study in JT-60U

T. Nishitani; M. Hoek; H. Harano; M. Isobe; K. Tobita; Y. Kusama; G. A. Wurden; R. E. Chrien

doi:10.1088/0741-3335/38/3/010

Triton burn-up study in JT-60U

T. Nishitani, M. Hoek, H. Harano, M. Isobe, K. Tobita, Y. Kusama, G. A. Wurden, R. E. Chrien

ENG - Quantum Science and Energy Engineering

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

Abstract

Time-resolved triton burn-up measurements have been performed using a new type of 14 MeV neutron detector based on scintillating fibres. The shot-integrated triton burn-up ratio was measured to be in the range 0.3-2.0%. Time histories of 14 MeV emission after NB turn-off have been analysed based on the classical slowing-down theory. Assuming the loss of fast tritons can be represented as a diffusivity, values increasing with increasing toroidal ripple were determined between 0.05 and 0.15 m² s^-1, from the modelling of the time histories of the 14 MeV emission after the NB turn-off.

Original language	English
Pages (from-to)	355-364
Number of pages	10
Journal	Plasma Physics and Controlled Fusion
Volume	38
Issue number	3
DOIs	https://doi.org/10.1088/0741-3335/38/3/010
Publication status	Published - 1996

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AU - Nishitani, T.

AU - Hoek, M.

AU - Harano, H.

AU - Isobe, M.

AU - Tobita, K.

AU - Kusama, Y.

AU - Wurden, G. A.

AU - Chrien, R. E.

PY - 1996

Y1 - 1996

N2 - Time-resolved triton burn-up measurements have been performed using a new type of 14 MeV neutron detector based on scintillating fibres. The shot-integrated triton burn-up ratio was measured to be in the range 0.3-2.0%. Time histories of 14 MeV emission after NB turn-off have been analysed based on the classical slowing-down theory. Assuming the loss of fast tritons can be represented as a diffusivity, values increasing with increasing toroidal ripple were determined between 0.05 and 0.15 m2 s-1, from the modelling of the time histories of the 14 MeV emission after the NB turn-off.

AB - Time-resolved triton burn-up measurements have been performed using a new type of 14 MeV neutron detector based on scintillating fibres. The shot-integrated triton burn-up ratio was measured to be in the range 0.3-2.0%. Time histories of 14 MeV emission after NB turn-off have been analysed based on the classical slowing-down theory. Assuming the loss of fast tritons can be represented as a diffusivity, values increasing with increasing toroidal ripple were determined between 0.05 and 0.15 m2 s-1, from the modelling of the time histories of the 14 MeV emission after the NB turn-off.

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Triton burn-up study in JT-60U

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