NEUTRONS FROM D + T AND D + H
Thesis/Dissertation
·
OSTI ID:4722240
Measurements of the low-energy neutron spectra produced by bombarding tritium and hydrogen with deuterons have been made over a wide range of deuteron bombarding energies and neutron emission angles. The neutron spectra for tritium were observed at deuteron energies from approximates 5 to approximates 12 Mev at laboratory angles up to 70 deg . Spectra for hydrogen were observed at deuteron energies from approximates 7 to approximates 12 Mev at laboratory angles up to 20 deg . Deuterons were accelerated with a tandem electrostatic accelerator, and the neutron spectra were obtained using pulsed-beam time-of- flight spectrometry. After subtraction of backgrounds, the timeof-flight spectra were converted to energy spectra. In the energy range investigated, both deuteron breakup, T(d,np)T, and the T(d,2n)He/sup 3/ reaction can contribute to the continuous neutron spectrum from the deuteron bombardment of tritium. At 0 deg the observed spectra exhibit two maxima, one occurring at a neutron energy slightly below the maximum possible energy of neutrons from the breakup reaction, and the other occurring several Mev lower. Angular distributions of the d + T neutron spectra also exhibit the maxima seen at 0 deg , although the high-energy peak becomes less distinct as the angle increases, For d + H, only deuteron breakup, H(d,np)H, is possible and the resulting spectra vary smoothly with neutron energy. There is a tendency, however, for the spectra to peak at high neutron energies as the deuteron energy is increased. This peaking is interpreted as being caused by the onset of a finalstate nuclear p-p interaction. (M.P.G.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-17-017086
- OSTI ID:
- 4722240
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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