Gamma Rays from<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">Li</mml:mi></mml:mrow><mml:mrow><mml:mn>7</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>19</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">Ne</mml:mi></mml:mrow><mml:mrow><mml:mn>22</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>, and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">Na</mml:mi></mml:mrow><mml:mrow><mml:mn>22</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>Produced by Alpha-Particle Bombardment of Lithium and Fluorine

195455 citationsJournal Article

Authors

N. P. Heydenburg · Carnegie Observatories

Abstract

The study of the gamma radiation following the inelastic scattering of alpha particles in thin fluorine and lithium targets has led to the discovery of new levels in the compound nuclei ${\mathrm{Na}}^{23}$ and ${\mathrm{B}}^{11}$. The ($\ensuremath{\alpha}, p$) and ($\ensuremath{\alpha}, n$) reactions in ${\mathrm{F}}^{19}$ have led to the establishment of the 1.28-Mev level as first-excited state of ${\mathrm{Ne}}^{22}$, and the discovery of the first-excited state ($T=1$, $I={0}^{+}$) of ${\mathrm{Na}}^{22}$, respectively. Coulomb excitation is believed to be responsible for the low-energy part of the excitation function of the 196-kev second-excited state in ${\mathrm{F}}^{19}$, whereas this effects is much weaker for the 113-kev first-excited state of ${\mathrm{F}}^{19}$. No capture gamma rays exist above the known resonance at 0.958 Mev in the reaction ${\mathrm{Li}}^{7}(\ensuremath{\alpha}, \ensuremath{\gamma}){\mathrm{B}}^{11}$.

Topics & Keywords

X-ray Spectroscopy and Fluorescence Analysis Nuclear physics research studies Nuclear Physics and Applications

Publication Details

Published in: Physical Review

Volume 94, Issue 5, pp. 1252-1257

DOI: 10.1103/physrev.94.1252

Field-Weighted Citation Impact: 9.55

Command Palette

Authors

Abstract

Topics & Keywords

Publication Details