72-Hf-177
Spin
Level energy(keV) Spin & Parity
----------------------------------------
ground state 7/2-
1.31545E+03 23/2+
2.74002E+03 37/2-
Mass (The Ame2012 atomic mass evaluation (II) by M.Wang, G.Audi, A.H.Wapstra, F.G.Kondev, M.MacCormick, X.Xu, and B.Pfeiffer
Chinese Physics C36 p. 1603-2014, December 2012)
176.943227717 ± 0.000002031 (amu) [mass excess = -52883.041 ± 1.892 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-1166.000 ± 3.000 (keV)
Strong Gamma-rays from Decay of Hf-177 (Compiled from ENSDF as of March 2011)
[ Intensities before May 23th of 2013 were values when total intensity of the decay mode was 100(%) and a branching ratio of each decay mode was not multiplied. ]
γ-ray energy(keV) Intensity(%) Decay mode
----------------------------------------------------------
208.37 73.05 IT
228.48 47.22 IT
378.50 37.99 IT
----------------------------------------------------------
277.3 75. IT
295.1 69. IT
326.7 68.25 IT
----------------------------------------------------------
*: relative, ~ approximate, ? calculated or estimatted
>: greater than or equal to, <: less than or equal to
[ Intensities; total intensity of the nuclide is 100(%). ]
Decay data(Chart of the Nuclides 2014)
Decay mode Half-life
IT 1.09 S 5
IT 51.4 M 5
Cross Sections (taken from JENDL-4.0)
Table of cross sections, Hf-177.
Figures of cross sections, Hf-177: type-1: type-2: type-3.
type-1: total, elastic and inelastic scattering, capture and fision cross sections
type-2: same as type-1 but cross sections are averaged in 70 energy group intervals
type-3: threshold reaction cross sections
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Hf-176 (Z= 72, A=176), MT=102 (n,γ)
Hf-177 (Z= 72, A=177), MT= 2 (Elastic scattering)
Hf-177 (Z= 72, A=177), MT= 4 (Inelastic scattering)
Hf-178 (Z= 72, A=178), MT= 16 (n,2n)
Hf-179 (Z= 72, A=179), MT= 17 (n,3n)
W -180 (Z= 74, A=180), MT=107 (n,α)
W -182 (Z= 74, A=182), MT= 24 (n,2nα)