55-Cs-135
Spin
Level energy(keV) Spin & Parity
----------------------------------------
ground state 7/2+
1.63330E+03 19/2-
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)
134.905977049 ± 0.000001069 (amu) [mass excess = -87581.815 ± 0.996 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
268.898 ± 1.033 (keV)
Strong Gamma-rays from Decay of Cs-135 (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
----------------------------------------------------------
787.2 99.7 IT
846.1 96. 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
B- 2.3E+6 Y 3
IT 53 M 2
Cross Sections (taken from JENDL-4.0)
Table of cross sections, Cs-135.
Figures of cross sections, Cs-135: 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
Cs-134 (Z= 55, A=134), MT=102 (n,γ)
Cs-135 (Z= 55, A=135), MT= 2 (Elastic scattering)
Cs-135 (Z= 55, A=135), MT= 4 (Inelastic scattering)
Cs-136 (Z= 55, A=136), MT= 16 (n,2n)
Cs-137 (Z= 55, A=137), MT= 17 (n,3n)
Ba-135 (Z= 56, A=135), MT=103 (n,p)
Ba-136 (Z= 56, A=136), MT= 28 (n,np)
Ba-136 (Z= 56, A=136), MT=104 (n,d)
Ba-137 (Z= 56, A=137), MT= 32 (n,nd)
Ba-137 (Z= 56, A=137), MT=105 (n,t)
La-138 (Z= 57, A=138), MT=107 (n,α)
La-139 (Z= 57, A=139), MT= 22 (n,nα)
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)
-----------------------------------------------------------
Cs-135 U-235 Thermal 3.044270e-06 1.948330e-06
Cs-135 U-235 Fast 1.182060e-06 7.565180e-07
Cs-135 U-235 High 2.570380e-04 1.645040e-04
Cs-135 U-238 Fast 2.134040e-07 1.365790e-07
Cs-135 U-238 High 1.134170e-05 7.258650e-06
Cs-135 Pu-239 Thermal 7.825850e-05 5.008540e-05
Cs-135 Pu-239 Fast 7.197260e-05 4.606250e-05
Cs-135 Pu-239 High 8.165510e-04 5.225930e-04
Cs-135 Pu-241 Thermal 4.540250e-06 2.905760e-06
Cs-135 Pu-241 Fast 4.309260e-06 2.757930e-06
-----------------------------------------------------------
Cs-135m U-235 Thermal 1.857930e-06 1.189080e-06
Cs-135m U-235 Fast 8.736950e-07 5.591650e-07
Cs-135m U-235 High 3.491840e-04 2.234770e-04
Cs-135m U-238 Fast 1.577340e-07 1.009500e-07
Cs-135m U-238 High 1.540750e-05 9.860800e-06
Cs-135m Pu-239 Thermal 4.776160e-05 3.056740e-05
Cs-135m Pu-239 Fast 5.319710e-05 3.404620e-05
Cs-135m Pu-239 High 1.109280e-03 7.099380e-04
Cs-135m Pu-241 Thermal 2.770940e-06 1.773400e-06
Cs-135m Pu-241 Fast 3.185100e-06 2.038470e-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)
-----------------------------------------------------------
Cs-135 U-235 Thermal 6.523550e-02 2.764030e-04
Cs-135 U-235 Fast 6.579160e-02 5.124000e-04
Cs-135 U-235 High 5.735610e-02 3.436420e-03
Cs-135 U-238 Fast 6.922840e-02 6.621410e-04
Cs-135 U-238 High 5.835060e-02 1.170260e-03
Cs-135 Pu-239 Thermal 7.617440e-02 5.358810e-04
Cs-135 Pu-239 Fast 7.551260e-02 3.800030e-04
Cs-135 Pu-239 High 6.377160e-02 6.997480e-03
Cs-135 Pu-241 Thermal 7.163080e-02 7.212910e-04
Cs-135 Pu-241 Fast 7.054840e-02 1.421740e-03
-----------------------------------------------------------
Cs-135m U-235 Thermal 1.857930e-06 1.189080e-06
Cs-135m U-235 Fast 8.736950e-07 5.591650e-07
Cs-135m U-235 High 3.491840e-04 2.231460e-04
Cs-135m U-238 Fast 1.577340e-07 1.009130e-07
Cs-135m U-238 High 1.540750e-05 9.850120e-06
Cs-135m Pu-239 Thermal 4.776160e-05 3.056740e-05
Cs-135m Pu-239 Fast 5.319710e-05 3.404620e-05
Cs-135m Pu-239 High 1.109280e-03 7.094780e-04
Cs-135m Pu-241 Thermal 2.770940e-06 1.773110e-06
Cs-135m Pu-241 Fast 3.185100e-06 2.038470e-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