NEUTRONS FROM DEUTERON BREAKUP ON D,T, AND He$sup 4$
The continuous neutron spectra produced by deuteron bombardment of D, T, and He/sup 4/ have been studied at deuteron energies near 9 Mev with a time-of- flight spectrometer. Angular distributions of the continuous spectra from D + d and He/sup 4/ + d were obtained for deuteron energies of 9 and 10 Mev. The center-of-mass angular distributions are peaked forward for neutrons of all energies. Two maxima present in the 0 deg spectrum from He/sup 4/ + d at E/sub d/ = 10 Mev are consistent with the interpretation that He/sup 5/ and Li/sup 5/ are produced in their ground states as alternative intermediate steps in the reaction. Two maxima are also present in the continuous neutron spectrum from T + d. The higher energy maximum occurs near the maximum possible neutron energy from the T(d,np)T reaction and cannot be caused by the T(d,2n)He/sup 3/ reaction. If this peak is caused by an excited state in He/sup 4/, it would correspond to an excitation in He/sup 4/ of 20.0 plus or minus 0.2 Mev, and be unbound. (auth)
- Research Organization:
- Univ. of Wisconsin, Madison
- NSA Number:
- NSA-17-000860
- OSTI ID:
- 4791941
- Report Number(s):
- TID-15926; 0031-899X
- Journal Information:
- Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Vol. Vol: 128; Other Information: TID-15926. Orig. Receipt Date: 31-DEC-63
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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