ISSN:
1573-8205
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
,
Physics
Notes:
Abstract The variation of the yields of Na21 and P32 nuclei from copper, lanthanum, gold, and thorium with the proton energy has been studied by a radiochemical method. The curves show that the yields of these nuclei increase considerably with increase of the proton energy from 120 to 660 mev. It was found that the yields of Na24 and P32 nuclei depend to a considerable extent on the atomic number of the target element. A comparison of the calculated formation thresholds of Na24 and P32 nuclei in spallation and fission reactions with experimental estimates of these thresholds led to the conclusion that they are formed by strongly asymmetric fission of copper, lanthanum, and gold nuclei. An exception is p32, which is formed from copper as the result of a spoliation reaction. This last process plays a significant role in the formation of Na24 from copper.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01515752
