Lifetime of the 961 keV 1
-
level in
152
Sm
1960 ◽
Vol 257
(1288)
◽
pp. 52-58
◽
Keyword(s):
With a 152m EuO3 source and a Sm 2 O 3 scatter er, nuclear y-ray resonance scattering and resonance fluorescence self-absorption experiments were performed to determine the lifetime of the 961 keV 1 - level in 152 Sm. The value obtained from scattering , (8±2) x 10 -14 s, is larger than that determined from self absorption , (4.7±0.5) x 10 -14 s; 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 -8 cm for the source nucleus recoiling after electron capture in 152 Eu 2 O 3 has been calculated.
Keyword(s):
2011 ◽
Vol 309-310
◽
pp. 215-222
1971 ◽
Vol 32
(C1)
◽
pp. C1-539-C1-540
◽
2009 ◽
Vol 236
(3)
◽
pp. 165-173
◽