Threshold effects in proton-induced reactions on copper
Creators
- 1. Melbourne Univ., Parkville (Australia). School of Physics
Description
A study has been made of proton-induced reactions on the two copper isotopes 65Cu and 63Cu for bombarding energies in the range 1.2 - 4.6MeV. This range includes the (p,n) thresholds for 65Cu and 63Cu, which occur at 2.17MeV and 4.21MeV respectively. Excitation functions for (p,γ) reactions were obtained by observing discrete γ-ray transitions between low-lying states of the compound nuclei. Data were also obtained for the charged-particle reactions 65Cu(p,α0)62Ni and 63Cu(p,αsub(0,1))60Ni. As the respective (p,n) threshold are crossed, the yields of proton-induced reactions on 65Cu fall by a factor of about 5 while the excitation functions of proton-induced reactions on 63Cu reveal no evidence of a significant threshold effect. These data are compared with Hauser-Feshbach statistcal model calculations. The structure in the 65Cu+p reaction yield is interpreted in terms of Wigner cusps
Additional details
Publishing Information
- Journal Title
- Aust. J. Phys.
- Journal Issue
- v.31(3,4
- Series
- Aust. J. Phys.
INIS
- Country of Publication
- Australia
- Country of Input or Organization
- Australia
- INIS RN
- 10440267
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- ALPHA PARTICLES; COPPER 65; COPPER 65 TARGET; GAMMA RADIATION; HAUSER-FESHBACH THEORY; MEV RANGE 01-10; NEUTRONS; NICKEL 62; PROTON REACTIONS; THRESHOLD ENERGY; TOTAL CROSS SECTIONS; WIGNER EFFECT; ZINC 66
- Descriptors DEC
- BARYON REACTIONS; BARYONS; CHARGED PARTICLES; COPPER ISOTOPES; CROSS SECTIONS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY; ENERGY RANGE; EVEN-EVEN NUCLEI; FERMIONS; HADRON REACTIONS; HADRONS; HELIUM IONS; INTERMEDIATE MASS NUCLEI; IONIZING RADIATIONS; IONS; ISOTOPES; MEV RANGE; NICKEL ISOTOPES; NUCLEAR REACTIONS; NUCLEAR THEORY; NUCLEI; NUCLEON REACTIONS; NUCLEONS; ODD-EVEN NUCLEI; RADIATIONS; STABLE ISOTOPES; TARGETS; ZINC ISOTOPES