64-Gd-166
Spin
Level energy(keV) Spin & Parity
----------------------------------------
ground state 0+
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)
165.941460 ± 0.000640 (amu) [mass excess = -54530 ± 596 (keV) ]
[These values were derived from systematical trend]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
3354 ± 600 (keV) [derived from systematical trend]
Strong Gamma-rays from Decay of Gd-166 (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
----------------------------------------------------------
536.0 * 37. B-
975.5 * 84. B-
1015.5 *100. B-
----------------------------------------------------------
*: 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
B- 4.8 S 10
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Fission Yields for Fission Products in JENDL-4.0 Fission Yield Data
- Neutron-induced Fission Yields (from main actinide nuclides) - Independent Fission Yield -
Product Nuclide Energy Fission Yield Uncertainty(1σ)
-----------------------------------------------------------
Gd-166 U-235 Thermal 1.657360e-09 1.060710e-09
Gd-166 U-235 Fast 5.768090e-09 3.691580e-09
Gd-166 U-235 High 2.753780e-07 1.762420e-07
Gd-166 U-238 Fast 3.821420e-07 2.445720e-07
Gd-166 U-238 High 3.273560e-06 2.095080e-06
Gd-166 Pu-239 Thermal 1.589750e-07 1.017440e-07
Gd-166 Pu-239 Fast 1.149810e-06 7.358810e-07
Gd-166 Pu-239 High 1.380900e-07 8.837730e-08
Gd-166 Pu-241 Thermal 2.480400e-09 1.587460e-09
Gd-166 Pu-241 Fast 3.067690e-06 1.963320e-06
-----------------------------------------------------------
Thermal=0.0253eV, Fast=500keV(Fast reactor spectrum), High=14MeV
- Neutron-induced Fission Yields (from main actinide nuclides) - Cumulative Fission Yield -
Product Nuclide Energy Fission Yield Uncertainty(1σ)
-----------------------------------------------------------
Gd-166 U-235 Thermal 1.682380e-09 1.076720e-09
Gd-166 U-235 Fast 5.942700e-09 3.803330e-09
Gd-166 U-235 High 2.813790e-07 1.798200e-07
Gd-166 U-238 Fast 4.655230e-07 2.979350e-07
Gd-166 U-238 High 3.783260e-06 2.419210e-06
Gd-166 Pu-239 Thermal 1.613690e-07 1.030400e-07
Gd-166 Pu-239 Fast 1.162530e-06 7.423910e-07
Gd-166 Pu-239 High 1.396630e-07 8.938410e-08
Gd-166 Pu-241 Thermal 2.699980e-09 1.727990e-09
Gd-166 Pu-241 Fast 3.183130e-06 2.037200e-06
-----------------------------------------------------------
Thermal=0.0253eV, Fast=500keV(Fast reactor spectrum), High=14MeV
→ Neutron-induced and Spontaneous Fission Yields of all nuclides in JENDL-4.0 Fission Yield Data