Plasma and Fusion Research
Online ISSN : 1880-6821
Regular Articles
Multi-Channel Neutron Emission and Triton Burn-up Measurement on JT-60U Using Digital Signal Processors
Keiichi ISHIIKouji SHINOHARAMasao ISHIKAWAToshio OKUJIMamoru BABAMitsutaka ISOBESumio KITAJIMAMamiko SASAO
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2010 Volume 5 Pages S1043

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Abstract

In JT-60U, the multi-channel neutron profile monitor measures the line-integrated neutron emission. A digital signal processing (DSP) system was applied to all neutron detectors in the neutron profile monitor. A new 2D mapping method for DSP data analysis was developed to discriminate neutrons from γ-rays. The combination of DSP and the 2D map enabled the simultaneous measurement of DD and DT neutrons with one detector. The time evolutions of DD and of DT neutrons showed different responses to the ITB formation, depending on the viewing chord.

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© 2010 by The Japan Society of Plasma Science and Nuclear Fusion Research
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