Simple Capture of Alpha-Particles

W. E. Bennett, Paul A. Roys, and B. J. Toppel
Phys. Rev. 82, 20 – Published 1 April 1951
PDFExport Citation

Abstract

Gamma-rays have been observed from the simple capture of alpha-particles in lithium. The gamma-ray energies were too large for simple capture in Li6, but not inconsistent with the reaction Li7(α,γ)B11. Three resonances were observed at bombarding energies of 0.401, 0.819, and 0.958 Mev. The corresponding excited states in B11 are at 8.90, 9.16, and 9.25 Mev. The yields were too small to use thin targets, but the resonances appeared as steps in the thick target yield curve. The slope of the steps was largely of instrumental origin for the first two resonances and suggested a width of about six kev for the upper resonance. Among the other light elements, only Be and B yielded gamma-rays when bombarded by 1.4-Mev alpha-particles; but in these cases, the sharp resonances characteristic of simple capture were absent.

  • Received 30 October 1950

DOI:https://doi.org/10.1103/PhysRev.82.20

©1951 American Physical Society

Authors & Affiliations

W. E. Bennett, Paul A. Roys, and B. J. Toppel*

  • Illinois Institute of Technology, Chicago, Illinois

  • *AEC Predoctoral Fellow.

References (Subscription Required)

Click to Expand
Issue

Vol. 82, Iss. 1 — April 1951

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Journals Archive

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×