Distribution in Angle of Alpha Particles from Li7 + H1

Authors

V. J. Young, State University of IowaFollow
G. J. Plain, State University of IowaFollow
W. B. McLean, State University of IowaFollow
A. Ellett, State University of IowaFollow

Document Type

Research

Abstract

We find the distribution of alpha particles from Li⁷ + H¹ is not spherically symmetric, a result in disagreement with the conclusions of earlier investigators,¹ who, however, worked at rather low energies only. Thick target data at energies as low as 150 ekv show the presence of a small cos²Θ term and may be represented by I(Θ) = 1 + .16 Cos²Θ while at 440 ekv the asymmetry is very marked, the data being well represented by I(Θ) = 1 + .7 Cos² Θ. Because of the rapid increase of yield with energy, it is to be expected that thin target data will show a slightly but only slightly greater cos2 0 term. Preliminary thin target data appear to bear this out.

Publication Date

1940

Journal Title

Proceedings of the Iowa Academy of Science

Volume

47

Issue

1

First Page

286

Last Page

286

Copyright

©1940 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Young, V. J.; Plain, G. J.; McLean, W. B.; and Ellett, A. (1940) "Distribution in Angle of Alpha Particles from Li7 + H1," Proceedings of the Iowa Academy of Science, 47(1), 286-286.
Available at: https://scholarworks.uni.edu/pias/vol47/iss1/75