Author:
Millar C. H.,Cameron A. G. W.
Abstract
In experiments to search for new photonuclear reactions involving the emission of heavy particles [Formula: see text], Ilford E1 emulsions were exposed to 240 roentgens of X radiation from the University of Saskatchewan betatron operating at energies up to 27 Mev. The plates were developed by a special "grain-gradation" technique which suppressed proton tracks and X-ray fog. The ejection of single α particles was observed from C13, N14, O16, Ag, and Br. Multiple-pronged stars were observed due to the photodisintegration of C12, N14, O16, and probably Ag or Br. Interpretations of these events were deduced, and cross section versus energy curves for many of them were obtained. Range–energy relationships were obtained for Be9, B10, and C12 particles in E1 emulsions.
Publisher
Canadian Science Publishing
Subject
General Physics and Astronomy
Cited by
32 articles.
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