Double scatter neutron time‐of‐flight spectrometer as a plasma diagnostic

The energy and flux measurement of D–D and D–T fusion neutrons provides a nonperturbing probe of plasma performance. In particular, ion temperature distribution of the plasma can be determined. This information can distinguish neutron production mechanisms, i.e., knock‐on or thermonuclear in origin....

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Published in:Review of scientific instruments 1986-08, Vol.57 (8), p.1740-1742
Main Authors: Walker, S. E., Preszler, A. M., Millard, W. A.
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Language:English
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container_issue 8
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container_title Review of scientific instruments
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creator Walker, S. E.
Preszler, A. M.
Millard, W. A.
description The energy and flux measurement of D–D and D–T fusion neutrons provides a nonperturbing probe of plasma performance. In particular, ion temperature distribution of the plasma can be determined. This information can distinguish neutron production mechanisms, i.e., knock‐on or thermonuclear in origin. To perform a fast neutron measurement, a high data rate double scatter spectrometer has been developed. This allows for a definitive measurement of the flux, energy, angle, and time distributions of neutrons from within the plasma. In addition, x‐ray discrimination can be achieved from the time‐of‐flight information. The specific design issues and performance of the spectrometer will be described.
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title Double scatter neutron time‐of‐flight spectrometer as a plasma diagnostic
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