Polarization of protons in the He3(d,p)He4 reaction. Technical report 348
Conference
·
OSTI ID:4000087
The polarization of protons from the He3(d,p)He4 reaction has been studied at incident deuteron energies of 1.49, 2.06, and 2.63 MeV for outgoing proton angles between. 30 deg and 150 deg in the laboratory system. The target was a He3 gas cell at 1.52 cm.Hg pressure. The polarimeter detected, in nuclear emulsions, protons scattered from He4 gas at 18 atmospheric pressure. The polarization of the scattered protons from the reaction was determined by measuring the left-right asymmetry of the elastically scattered protons, employing the well known double-scattering method. A proton polarization of - 21 +- 4% (Basel convention) was observed at a laboratory angle of 60 deg with an incident deuteron energy of 2.63 MeV at the center of the gas cell. For Ed = 2.06 MeV, the polarization shows a negative broad extreme near a laboratory, angle of 60 deg and decrease to zero for backward angles. The effective polarization of the p-He4 analyzer was derived from a careful study of the p - He4 phase shifts. A measurement of the asymmetry of protons from the reaction at resonance shows that the analyzer's inherent, asymmetry is less than 0.01. The inherent asymmetries due to finite geometry and possible misalignment of the experimental apparatus were calculated. These were found to give negligible corrections.to the measurements. (auth)
- Research Organization:
- Maryland. Univ., College Park, MD (United States)
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- NSA Number:
- NSA-18-022870
- OSTI ID:
- 4000087
- Report Number(s):
- CONF-481--50; AED-Conf--64-003-14
- Country of Publication:
- United States
- Language:
- English
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