Detailed investigation of a time of flight neutron spectrometer
Abstract
A neutron spectrometer and telescope based on double elastic interaction in two scintillators was tested on two neutron sources: a solid deuterium titanium target for D(d, n)He3 reaction, and a tritium gas cell for T(p, n)He3. The spectrometer provides a relative resolution of the ion temperature from 20% to 70% at ion temperatures around 1 keV and a flight path length of 2 m. For ion temperatures around 5 keV, the figures are 10% to 20% and for 10 keV, 7% to 10%. The telescope provides spatial resolutions from 0.25 to 0.50 m with flight path lengths from 0.6 to 1.3 m. The width of the energy peak of a neutron source used for calibrating must be known to within a few keV to obtain adequate resolutions.
- Publication:
-
Research and Training Programme on Controlled Thermonuclear Fusion and Plasma Physics (EUR-NE) Royal Inst. of Tech
- Pub Date:
- February 1981
- Bibcode:
- 1981ctfp.rept.....E
- Keywords:
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- Neutron Spectrometers;
- Spectroscopic Telescopes;
- Time Of Flight Spectrometers;
- Angular Resolution;
- Deuterium Plasma;
- Ion Temperature;
- Neutron Sources;
- Instrumentation and Photography