64-Gd-157
Spin
Level energy(keV) Spin & Parity
----------------------------------------
ground state 3/2-
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)
156.923968569 ± 0.000001742 (amu) [mass excess = -70822.822 ± 1.623 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-60.044 ± 0.297 (keV)
Strong Gamma-rays from Decay of Gd-157 (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
----------------------------------------------------------
64. 17.5 IT
199. 30. IT
245. 60.62 IT
----------------------------------------------------------
*: relative, ~ approximate, ? calculated or estimatted
>: greater than or equal to, <: less than or equal to
[ Intensities; total intensity of the nuclide is 100(%). ]
Cross Sections (taken from JENDL-4.0)
Table of cross sections, Gd-157.
Figures of cross sections, Gd-157: 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
Gd-156 (Z= 64, A=156), MT=102 (n,γ)
Gd-157 (Z= 64, A=157), MT= 2 (Elastic scattering)
Gd-157 (Z= 64, A=157), MT= 4 (Inelastic scattering)
Gd-158 (Z= 64, A=158), MT= 16 (n,2n)
Tb-159 (Z= 65, A=159), MT= 32 (n,nd)
Tb-159 (Z= 65, A=159), MT= 41 (n,2np)
Tb-159 (Z= 65, A=159), MT=105 (n,t)
Tb-160 (Z= 65, A=160), MT= 33 (n,nt)
Dy-159 (Z= 66, A=159), MT=106 (n,3He)
Dy-160 (Z= 66, A=160), MT=107 (n,α)
Dy-161 (Z= 66, A=161), MT= 22 (n,nα)
Dy-162 (Z= 66, A=162), MT= 24 (n,2nα)
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-157 U-235 Thermal 1.477650e-09 9.456940e-10
Gd-157 U-235 Fast 6.486610e-10 4.151430e-10
Gd-157 U-235 High 2.082850e-06 1.333030e-06
Gd-157 U-238 Fast 8.043000e-11 5.147520e-11
Gd-157 U-238 High 1.531670e-08 9.802670e-09
Gd-157 Pu-239 Thermal 2.899540e-07 1.855710e-07
Gd-157 Pu-239 Fast 6.908880e-07 4.421680e-07
Gd-157 Pu-239 High 3.965570e-05 2.537970e-05
Gd-157 Pu-241 Thermal 4.150670e-09 2.656430e-09
Gd-157 Pu-241 Fast 3.027720e-08 1.937740e-08
-----------------------------------------------------------
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-157 U-235 Thermal 6.141520e-05 4.921280e-06
Gd-157 U-235 Fast 1.056080e-04 2.434170e-05
Gd-157 U-235 High 3.775850e-04 4.147680e-05
Gd-157 U-238 Fast 4.139020e-04 6.620060e-05
Gd-157 U-238 High 8.043650e-04 8.838860e-05
Gd-157 Pu-239 Thermal 7.413960e-04 4.449080e-05
Gd-157 Pu-239 Fast 1.061200e-03 8.490820e-05
Gd-157 Pu-239 High 1.133720e-03 1.246330e-04
Gd-157 Pu-241 Thermal 1.353910e-03 5.414800e-05
Gd-157 Pu-241 Fast 1.627120e-03 2.605370e-04
-----------------------------------------------------------
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