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2. Wide dynamic range neutron flux monitor having fast time response for the Large Helical Device.

Author

Isobe, M., Ogawa, K., Miyake, H., Hayashi, H., Kobuchi, T., Nakano, Y., Watanabe, K., Uritani, A., Misawa, T., Nishitani, T., Tomitaka, M., Kumagai, T., Mashiyama, Y., Ito, D., Kono, S., Yamauchi, M., and Takeiri, Y.

Subjects
DEUTERIUM spectra, DEUTERIUM plasma, NEUTRON flux, DYNAMIC range (Acoustics), SIGNAL processing
Abstract

A fast time response, wide dynamic range neutron flux monitor has been developed toward the LHD deuterium operation by using leading-edge signal processing technologies providing maximum counting rate up to ~ 5 x 109 counts/s. Because a maximum total neutron emission rate over 1 x 1016 n/s is predicted in neutral beam-heated LHD plasmas, fast response and wide dynamic range capabilities of the system are essential. Preliminary tests have demonstrated successful performance as a wide dynamic range monitor along the design. [ABSTRACT FROM AUTHOR]

Published
2014
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