35-Br-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)
     80.916289690 ± 0.000001375 (amu)  [mass excess = -77975.651 ± 1.281 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
     -280.837 ± 0.483 (keV) 
Cross Sections (taken from JENDL-4.0)
     Table of cross sections, Br-81.
     Figures of cross sections, Br-81:  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
     Br- 81 (Z= 35, A= 81), MT=  2 (Elastic scattering)
     Br- 81 (Z= 35, A= 81), MT=  4 (Inelastic scattering)
     Kr- 82 (Z= 36, A= 82), MT= 28 (n,np)
     Kr- 82 (Z= 36, A= 82), MT=104 (n,d)
     Kr- 83 (Z= 36, A= 83), MT= 32 (n,nd)
     Kr- 83 (Z= 36, A= 83), MT=105 (n,t)
     Rb- 85 (Z= 37, A= 85), 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)
    -----------------------------------------------------------
     Br- 81    U-235   Thermal   8.845910e-08   5.661390e-08 
     Br- 81    U-235   Fast      5.857910e-08   3.749060e-08 
     Br- 81    U-235   High      2.883950e-06   1.845730e-06 
     Br- 81    U-238   Fast      2.540950e-09   1.626210e-09 
     Br- 81    U-238   High      3.714050e-07   2.376990e-07 
     Br- 81   Pu-239   Thermal   2.669580e-06   1.708530e-06 
     Br- 81   Pu-239   Fast      8.338650e-07   5.336740e-07 
     Br- 81   Pu-239   High      6.354120e-06   4.066640e-06 
     Br- 81   Pu-241   Thermal   1.310210e-07   8.385350e-08 
     Br- 81   Pu-241   Fast      5.575810e-08   3.568520e-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)
    -----------------------------------------------------------
     Br- 81    U-235   Thermal   1.900650e-03   1.474810e-04 
     Br- 81    U-235   Fast      2.145340e-03   2.846540e-04 
     Br- 81    U-235   High      3.296180e-03   3.938410e-04 
     Br- 81    U-238   Fast      7.955030e-04   2.091610e-04 
     Br- 81    U-238   High      3.150240e-03   4.080320e-04 
     Br- 81   Pu-239   Thermal   1.766000e-03   3.021430e-04 
     Br- 81   Pu-239   Fast      1.352580e-03   1.694760e-04 
     Br- 81   Pu-239   High      2.618470e-03   4.469070e-04 
     Br- 81   Pu-241   Thermal   5.823190e-04   1.067310e-04 
     Br- 81   Pu-241   Fast      8.653470e-04   1.172010e-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