33-As-81
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)
80.922132280 ± 0.000002863 (amu) [mass excess = -72533.314 ± 2.667 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
3855.693 ± 2.845 (keV)
Strong Gamma-rays from Decay of As- 81 (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
----------------------------------------------------------
467.70 20. B-
491.20 8.5 B-
521.10 1.4 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- 33.3 S 8
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Se- 82 (Z= 34, A= 82), MT= 28 (n,np)
Se- 82 (Z= 34, A= 82), MT=104 (n,d)
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)
-----------------------------------------------------------
As- 81 U-235 Thermal 6.081220e-04 4.864980e-05
As- 81 U-235 Fast 6.814030e-04 4.360980e-04
As- 81 U-235 High 1.677590e-03 1.073650e-03
As- 81 U-238 Fast 1.388520e-04 8.886520e-05
As- 81 U-238 High 1.102770e-03 7.057730e-04
As- 81 Pu-239 Thermal 1.025640e-03 6.564090e-04
As- 81 Pu-239 Fast 7.044960e-04 4.508770e-04
As- 81 Pu-239 High 1.310050e-03 8.384320e-04
As- 81 Pu-241 Thermal 2.948680e-04 1.887160e-04
As- 81 Pu-241 Fast 3.267840e-04 2.091420e-04
-----------------------------------------------------------
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)
-----------------------------------------------------------
As- 81 U-235 Thermal 1.821040e-03 1.568060e-04
As- 81 U-235 Fast 2.101530e-03 7.280860e-04
As- 81 U-235 High 3.115450e-03 1.041720e-03
As- 81 U-238 Fast 7.925570e-04 3.923080e-04
As- 81 U-238 High 3.080800e-03 1.058800e-03
As- 81 Pu-239 Thermal 1.520360e-03 5.138710e-04
As- 81 Pu-239 Fast 1.232140e-03 5.879230e-04
As- 81 Pu-239 High 2.364600e-03 1.114510e-03
As- 81 Pu-241 Thermal 5.489830e-04 2.673960e-04
As- 81 Pu-241 Fast 8.417880e-04 4.092630e-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