caa a22 4500 445872993 CHVBK 20180317145518.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1140/epja/i2011-11064-9 doi (NATIONALLICENCE)springer-10.1140/epja/i2011-11064-9 Improved characteristics of the 22.5 keV (M1 + E2) nuclear transition in 149Sm [Elektronische Daten] [A. Inoyatov, D. Filosofov, V. Gorozhankin, A. Kovalık, I. Adam, L. Perevoshchikov, M. Ryšavý] The gamma ray and conversion electron spectra of the 22.5keV M1 + E2 nuclear transition depopulating the first excited level 5/2− in 149Sm were investigated in detail. A substantially improved value of 22500.2 ± 0.8 eV for the transition energy was determined that opens a possibility to establish an electron energy standard for the keV region based on the conversion electron lines of this transition. The E2 admixture parameter |δ(E2/M1)| = 0.0784 ± 0.0009 and the nuclear structure parameter λ = − 2 ± 10 were derived. The |δ(E2/M1)| and λ parameters were also obtained for all available experimental data and their mutual combination. SIF, Springer-Verlag Berlin Heidelberg, 2011 Inoyatov A. Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation aut Filosofov D. Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation aut Gorozhankin V. Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation aut Kovalık A. Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation aut Adam I. Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation aut Perevoshchikov L. Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation aut Ryšavý M. Nuclear Physics Institute of the ASCR, Řež near Prague, Czech Republic aut The European Physical Journal A Springer-Verlag 47/5(2011-05-01), 1-6 1434-6001 47:5<1 2011 47 10050 https://doi.org/10.1140/epja/i2011-11064-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epja/i2011-11064-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Inoyatov A. Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation aut NATIONALLICENCE 700 1- Filosofov D. Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation aut NATIONALLICENCE 700 1- Gorozhankin V. Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation aut NATIONALLICENCE 700 1- Kovalık A. Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation aut NATIONALLICENCE 700 1- Adam I. Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation aut NATIONALLICENCE 700 1- Perevoshchikov L. Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation aut NATIONALLICENCE 700 1- Ryšavý M. Nuclear Physics Institute of the ASCR, Řež near Prague, Czech Republic aut NATIONALLICENCE 773 0- The European Physical Journal A Springer-Verlag 47/5(2011-05-01), 1-6 1434-6001 47:5<1 2011 47 10050 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer