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Samarium Isotopes

Stable Samarium Isotopes - Sm Isotopes
Nominal mass Accurate
mass
% Natural abundance Chemical
form
Enrichment available %

144 Sm 143.911998 (4) 3.1 (7) oxide 86 - 93+

147 Sm 146.914894 (4) 15.0 (8) oxide 94 - 96+

148 Sm 147.914819 (4) 11.24 (10) oxide 91 - 95+

149 Sm 148.917180 (4) 13.8 (7) oxide 90 - 96+

150 Sm 149.917273 (4) 7.4 (1) oxide 93 - 95+

152 Sm 151.919728 (4) 26.7 (16) oxide 96 - 98+

154 Sm 153.922205 (4) 22.7 (29) oxide 98 - 99+
 
Samarium Isotopes are used in various applications. Sm-144 is used for the production of the therapeutic radioisotope Sm-145. Sm-147 has been bombarded with Ca-40 to produce the short-lived radioisotopes Pb-182. Sm-148 has been used to study the giant monopole resonance while Sm-149 has been used in a filter for polarizing thermal neutrons. Sm-152 is used for the production of the radioisotope Sm-153 which is used for bone pain palliation. Finally, Sm-154 has been used to study the excited states of Sm-153.
 
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