Nuclear Data Sheets for A = 145

Abstract

A b s t r a c t : T h e e v a l u a t o r s p r e s e n t i n t h i s p u b l i c a t i o n s p e c t r o s c o p i c d a t a a n d l e v e l s c h e m e s f r o m r a d i o a c t i v e decay and nuclear reactions for all isobars with mass number A=145. General Policies and Organization of Material: See the January issue of the Nuclear Data Sheets or http://www.nndc.bnl.gov/nds/NDSPolicies.pdf. G e n e r a l C o m m e n t s : H i g h l i g h t s f r o m t h i s e v a l u a t i o n i n c l u d e t h e d i s c o v e r y o f 1 4 5 T m , a p r o t o n e m i t t e r w i t h a h a l f -l i f e o f 3 . 1 7 µ s ( 1 9 9 8 B a 1 3 , 2 0 0 3 K a 0 4 , 2 0 0 7 S e 0 6 ) . A l s o , n e w i n f o r m a t i o n o b t a i n e d w i t h a t o t a l a b s o r p t i o n γ -ray spectrometer produced significant changes to the β -decay schemes of 145 Ba and 145 La (1997Gr07). T h e t h e o r e t i c a l c o n v e r s i o n c o e f f i c i e n t s f o r γ r a y s g i v e n i n t h i s e v a l u a t i o n a r e f r o m 2 0 0 2 B a 8 5 a n d h a v e b e e n interpolated using the computer code BRICC (Band Raman Internal Conversion Coefficients) (2005KiZT).

Ba145 β− decay: Excited states and half-lives in neutron-rich La145Cardona1, Hojman2, Roussière3 et al. 2021Phys. Rev. C3100View full textAdd to dashboardCite

“…We present here the results of our work concerning the 145 La nucleus. From investigations previous to this work, the decay of 145 Ba to 145 La has not been established completely and many γ-rays remain unplaced or have been placed tentatively in the level scheme [14]. Moreover, except for the 2566 keV level (2570 keV in the present work), the available information on levels above 1177 keV concerns the population of pseudolevels based on total γ-ray absorption spectrometer measurements [15].…”

Investigation of thei13/2neutron orbital in theSn132region: New excited levels inKorgul1, Bączyk2, Urban3 et al. 2015Phys. Rev. C

“…The data are taken from Refs. [2,[16][17][18][19][20][21][22][23][24][25][26][27][28]. See text for more details.…”

Quantification of Trace-Level Fissile Samples via Short-Lived Delayed Gamma Spectroscopy

“…The accepted-level structure for 145 Pr used for the ENDF/ B-VII.0 evaluation [28] indicates minor disagreement between high-resolution gamma spectroscopy results and corresponding TAGS measurements [29]. Here, β feeding strengths for levels above 786.9 keV (the predominant decay gamma from 145 Ce) are moderately higher for all levels estimated by Greenwood et al [29] using TAGS, with a cumulative difference of about 3.74% [29].…”

“…This introduced additional complexity since activation products were created from within the polyethylene rabbit and radioactive contamination from the PT was present on the rabbit's outer walls. The activation products identified after an empty rabbit irradiation in PT-2 were 56 Mn, 28 Al, 38 Cl, 41 Ar, and 51 Cr. It is known that the 56 Mn, 28 Al, and 38 Cl are produced from within the HDP rabbit matrix, while 41 Ar is created from the activation of elemental argon in air, and 51 Cr is created from the activated chromium acquired from the stainless steel PT.…”