
TY  - JOUR
A1  - Switkowski, ZE 
A1  - Heggie, JCP 
A1  - Mann, FM 
T1  - Threshold Effects in Proton-induced Reactions on Copper
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1978
VL  - 31
IS  - 4
SP  - 253
EP  - 266
KW  - 
UR  - https://doi.org/10.1071/PH780253 
N2  - A study has been made of proton-induced reactions on the two copper isotopes 65CU and 63CU for bombarding energies in the range 1·2-4·6 MeV. This energy range includes the (p,n) thresholds for 65CU and 63CU, which occur at 2·17MeV and 4·21 MeV respectively. Excitation functions for (p, y) reactions were obtained by observing discrete y-ray transitions between low-lying states of the compound nuclei. Data were also obtained for the charged-particle reactions 65Cu(p,lXo)62Ni and 63CU(p, lXo.,)6°Ni. As the respective (p, n) thresholds 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 ompared with Hauser-Feshbach statistical model calculations. The structure in the 65CU+p reaction yield is interpreted in terms of Wigner cusps. 
ER  -

