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The experimental data are evaluated for known nuclides of mass number A=43 (Al,Si,P,S,Cl,Ar,K,Ca,Sc, T i , V , C r ) . D e t a i l e d e v a l u a t e d l e v e l p r o p e r t i e s a n d r e l a t e d i n f o r m a t i o n a r e p r e s e n t e d , i n c l u d i n g a d o p t e d v a l u e s o f l e v e l a n d γ -r a y e n e r g i e s , d e c a y d a t a ( e n e r g i e s , i n t e n s i t i e s a n d p l a c e m e n t o f r a d i a t i o n s ) , a n d o t h e r spectroscopic data. This work supersedes earlier full evaluations of A=43 published by 2001Ca24 and 1990En08 (also 1978En04, and 1998En04 update).No excited states are known in 4 3 Al, 4 3 Si and 4 3 Cr. Only one excited state is known in 4 3 V which is the probable the Isobaric Analog State (IAS) of 4 3 Cr ground state. Information for 4 3 P, 4 3 S, 4 3 Cl, 4 3 Ar and 4 3 Ti is limited; t h e r e i s e i t h e r n o d e c a y d a t a a v a i l a b l e o r t h e d e c a y s c h e m e s a r e i n c o m p l e t e i n v i e w o f l a r g e Q v a l u e s a n d k n o w n e x c i t a t i o n s m u c h l o w e r t h a n a l l o w e d b y Q v a l u e s . T h e 4 3 K , 4 3 C a a n d 4 3 S c n u c l i d e s r e m a i n t h e m o s t extensively studied from many different reactions and decays. Cutoff Date: Literature available up to March 31, 2015 has been included. Main bibliographic source was the NSR database (2011Pr03) at Brookhaven laboratory webpage: www.nndc.bnl.gov/nsr/ General Policies and Organization of Material: see http://www.nndc.bnl.gov/nds/NDSPolicies.pdf. G e n e r a l C o m m e n t s : T h e s t a t i s t i c a l a n a l y s i s o f γ -r a y d a t a a n d d e d u c e d l e v e l s c h e m e s i s c a r r i e d o u t t h r o u g h computer codes available at NNDC, BNL website: www.nndc.bnl.gov. The direct feedings to excited states in β -a n d ε d e c a y s h a v e g e n e r a l l y b e e n c o m p u t e d f r o m I ( γ + c e ) i n t e n s i t y b a l a n c e s a t e a c h l e v e l ; t h e a s s o c i a t e d l o g ft values are calculated using LOGFT code. The Q values and particle-separation energies have been adopted from 2012Wa38 (AME-12). In cases where weighted averaging procedures have been used, the assigned uncertainty i s g e n e r a l l y n o t l o w e r t h a n t h e l o w e s t u n c e r t a i n t y g i v e n i n a m e a s u r e m e n t . N u c l e a r c h a r g e r a d i i h a v e b e e n adopted from 2013An02 evaluation. Moments are from 2014StZZ and 2013StZZ whenever possible. Theoretical total c o n v e r s i o n c o e f f i c i e n t s a r e f r o m B r I c c c o d e ( 2 0 0 8 K i 0 7 ) f o r f r o z e n -o r b i t o p t i o n w i t h a n i m p l i c i t u n c e r t a i n t y o f 1.4% when not stated Acknowledgments: We thank Dr. E. McCutchan (NNDC, BNL) for a review of this work, and McMaster undergraduate students S. Geraedts, J. Roediger, A. MacDonald and M. Birch for XUNDL compilations of several datasets used in this work. 3 / 2 + 9 1 4 5 3 / 2 + , 5 / 2 + 7 3 8 . 3 0 7 / 2 -8 7 6 7 5 / 2 -, 7 / 2 -2 4 5 1 1 / 2 + 1 0 4...
The experimental data are evaluated for known nuclides of mass number A=43 (Al,Si,P,S,Cl,Ar,K,Ca,Sc, T i , V , C r ) . D e t a i l e d e v a l u a t e d l e v e l p r o p e r t i e s a n d r e l a t e d i n f o r m a t i o n a r e p r e s e n t e d , i n c l u d i n g a d o p t e d v a l u e s o f l e v e l a n d γ -r a y e n e r g i e s , d e c a y d a t a ( e n e r g i e s , i n t e n s i t i e s a n d p l a c e m e n t o f r a d i a t i o n s ) , a n d o t h e r spectroscopic data. This work supersedes earlier full evaluations of A=43 published by 2001Ca24 and 1990En08 (also 1978En04, and 1998En04 update).No excited states are known in 4 3 Al, 4 3 Si and 4 3 Cr. Only one excited state is known in 4 3 V which is the probable the Isobaric Analog State (IAS) of 4 3 Cr ground state. Information for 4 3 P, 4 3 S, 4 3 Cl, 4 3 Ar and 4 3 Ti is limited; t h e r e i s e i t h e r n o d e c a y d a t a a v a i l a b l e o r t h e d e c a y s c h e m e s a r e i n c o m p l e t e i n v i e w o f l a r g e Q v a l u e s a n d k n o w n e x c i t a t i o n s m u c h l o w e r t h a n a l l o w e d b y Q v a l u e s . T h e 4 3 K , 4 3 C a a n d 4 3 S c n u c l i d e s r e m a i n t h e m o s t extensively studied from many different reactions and decays. Cutoff Date: Literature available up to March 31, 2015 has been included. Main bibliographic source was the NSR database (2011Pr03) at Brookhaven laboratory webpage: www.nndc.bnl.gov/nsr/ General Policies and Organization of Material: see http://www.nndc.bnl.gov/nds/NDSPolicies.pdf. G e n e r a l C o m m e n t s : T h e s t a t i s t i c a l a n a l y s i s o f γ -r a y d a t a a n d d e d u c e d l e v e l s c h e m e s i s c a r r i e d o u t t h r o u g h computer codes available at NNDC, BNL website: www.nndc.bnl.gov. The direct feedings to excited states in β -a n d ε d e c a y s h a v e g e n e r a l l y b e e n c o m p u t e d f r o m I ( γ + c e ) i n t e n s i t y b a l a n c e s a t e a c h l e v e l ; t h e a s s o c i a t e d l o g ft values are calculated using LOGFT code. The Q values and particle-separation energies have been adopted from 2012Wa38 (AME-12). In cases where weighted averaging procedures have been used, the assigned uncertainty i s g e n e r a l l y n o t l o w e r t h a n t h e l o w e s t u n c e r t a i n t y g i v e n i n a m e a s u r e m e n t . N u c l e a r c h a r g e r a d i i h a v e b e e n adopted from 2013An02 evaluation. Moments are from 2014StZZ and 2013StZZ whenever possible. Theoretical total c o n v e r s i o n c o e f f i c i e n t s a r e f r o m B r I c c c o d e ( 2 0 0 8 K i 0 7 ) f o r f r o z e n -o r b i t o p t i o n w i t h a n i m p l i c i t u n c e r t a i n t y o f 1.4% when not stated Acknowledgments: We thank Dr. E. McCutchan (NNDC, BNL) for a review of this work, and McMaster undergraduate students S. Geraedts, J. Roediger, A. MacDonald and M. Birch for XUNDL compilations of several datasets used in this work. 3 / 2 + 9 1 4 5 3 / 2 + , 5 / 2 + 7 3 8 . 3 0 7 / 2 -8 7 6 7 5 / 2 -, 7 / 2 -2 4 5 1 1 / 2 + 1 0 4...
For on-site inspections (OSI) under the Comprehensive Nuclear-Test-Ban Treaty (CTBT) measurement of the noble gas ³⁷Ar is considered an important technique. ³⁷Ar is produced underground by neutron activation of Calcium by the reaction ⁴⁰Ca(n,α)³⁷Ar. The naturally occurring equilibrium ³⁷Ar concentration balance in soil air is a function of an exponentially decreasing production rate from cosmic ray neutrons with increasing soil depth, diffusive transport in the soil air, and radioactive decay (T(1/2): 35 days). In this paper for the first time, measurements of natural ³⁷Ar activities in soil air are presented. The highest activities of ~100 mBq m⁻³ air are 2 orders of magnitude larger than in the atmosphere and are found in 1.5-2.5 m depth. At depths > 8 m ³⁷Ar activities are < 20 mBq m⁻³ air. After identifying the main ³⁷Ar production and gas transport factors the expected global activity range distribution of ³⁷Ar in shallow subsoil (0.7 m below the surface) was estimated. In high altitude soils, with large amounts of Calcium and with low gas permeability, ³⁷Ar activities may reach values up to 1 Bq m⁻³.
Neutron nuclear data on 69,71 Ga have been evaluated for the next version of the Japanese Evaluated Nuclear Data Library (JENDL) general purpose file in the energy region from 10 −5 eV to 20 MeV. The resolved resonance parameters at negative energies were adjusted so as to reproduce measured thermal capture cross sections. The statistical model was applied to calculate the cross sections above the resolved resonance region. In the calculations, coupled-channel optical model parameters were used for neutrons. Preequilibrium and direct-reaction processes were taken into account in addition to the compound process. The present evaluation is consistent with available experimental data. The evaluated data are compiled into an ENDF-formatted data file.
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