POLARIZATION OF PROTONS FROM THE He$sup 3$(d,p)He$sup 4$ REACTION
The polarization of protons from the He/sup 3/(d,p)He/sup 4/reaction was measured at eight laboratory angles between 20 and 140 deg for six deuteron energies from 3 to 12 Mev. The polarization was determined by scattering the protons from carbon. For all energies measured the polarization is positive at forward angles with a maximum near a laboratory angle of 30 deg . The polarization passes through zero in the vicinity of 60 deg and has a broad peak of negative polarization at back angles. At the forward maximum the polarization increases with bombarding energy from +0.01 plus or minus 0.03 at 3 Mev to +0.76 plus or minus 0.03 at 10 Mev, and +0.73 plus or minus 0.04 at 12 Mev. The broad minimum in the polarization at larger angles shows a similar energy dependence, but the minimum also shifts to larger angles with increasing deuteron energy. The most negative value of the polarization (P = --0.66 plus or minus 0.05) was found at 12O deg and 8 Mev. The present measurements suggest that the He/sup 3/(d,p)He/sup 4/ reaction may be a useful source of 23-29 Mev polarized protons. The results are compared with measurements of the neutron polarization in the mirror reaction T(d,n)He/sup 4/. Some new information of the polarization in the scattering of protons from carbon has also been obtained. 30 references. (auth)
- Research Organization:
- Wisconsin. Univ., Madison
- NSA Number:
- NSA-17-015258
- OSTI ID:
- 4728455
- Report Number(s):
- TID-16463
- Country of Publication:
- United States
- Language:
- English
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