Lifetime of the 961 keV 1^-level in¹⁵²Sm

23 August 1960

journal article
Published by The Royal Society in Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences

Vol. 257 (1288) , 52-58
https://doi.org/10.1098/rspa.1960.0133

Abstract

With a^152mEuO3 source and a Sm₂O₃scatter er, nuclear y-ray resonance scattering and resonance fluorescence self-absorption experiments were performed to determine the lifetime of the 961 keV 1^-level in¹⁵²Sm. The value obtained from scattering , (8±2) x 10^-14s, is larger than that determined from self absorption , (4.7±0.5) x 10^-14s; this could be due to in adequate know ledge about the slowing down of the source nuclei before the emission of the y-ray. From a comparison of these values, a mean free path of 0.6 x 10^-8cm for the source nucleus recoiling after electron capture in¹⁵²Eu₂O₃has been calculated.

This publication has 4 references indexed in Scilit:

Electron-Capture Energy and Level Lifetime by Temperature Effect in ${Sm}^{152}$ Gamma-Ray Resonance
Physical Review Letters, 1958
Lifetime of a $1^{-}$ Level in ${Sm}^{152}$
Physical Review B, 1958
Nuclear Resonance Fluorescence in ${Ni}^{60}$
Physical Review B, 1956
Der Wärmeübergang durch freie Konvektion in Metallschmelzen
International Journal of Materials Research, 1953

Lifetime of the 961 keV 1-level in152Sm

Abstract

Lifetime of the 961 keV 1^-level in¹⁵²Sm