Abstract
We have measured excitation functions for the reaction at 0° (lab) in an energy range covering the resonance corresponding to the 5/ state in at 7.46 MeV of excitation. A Ti-tritide target on a nickel backing was bombarded by an -particle beam, and the reaction products at 0° were spatially separated from the beam in a magnetic field and were then detected in a thin solid-state detector. Data at 14 bombarding energies were obtained for the group emitted at , and data at 11 energies were obtained for the group emitted at . To normalize these reaction data we measured, simultaneously with the reaction, the yield of the elastically recoiling tritons at ±15° and ±30° (lab). We obtained absolute differential cross sections from the normalized reaction data by measuring excitation functions for at 15° and 30° (lab) using a gas target. The average error in the reaction data is 2.7%; the errors in the 15° elastic data are less than 1%; the majority of the errors in the 30° elastic data are less than 2%; and the α-particle beam energy at the reaction region of the targets was determined to an accuracy of 6 keV. Our reaction data are compared with other data, data evaluations, and a recent three-channel multilevel -matrix analysis of a large body of mass-7 data.
NUCLEAR REACTIONS , , MeV; measured reaction , elastic . Comparisons with other data, with data evaluations, and with three-channel, multilevel, -matrix analysis.
- Received 22 February 1977
DOI:https://doi.org/10.1103/PhysRevC.16.513
©1977 American Physical Society
