METAMATERIALS Caleb Hughes Hassan Ismail Brett McCutchan ECIV 303 11/30/2010.
Recycling NuDat Programs A.A. Sonzogni, T.D. Johnson, E.A. McCutchan, National Nuclear Data Center...
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Transcript of Recycling NuDat Programs A.A. Sonzogni, T.D. Johnson, E.A. McCutchan, National Nuclear Data Center...
Recycling NuDat Programs
A.A. Sonzogni, T.D. Johnson, E.A. McCutchan,
National Nuclear Data Center
Brookhaven National Laboratory
Building 817
Upton, NY 11973-5000
www.nndc.bnl.gov
NSDD 2015 #2 - Alejandro Sonzogni
Using NuDat classes to plot beta-minus T1/2
Kratz-Hermann systematics
NSDD 2015 #3 - Alejandro Sonzogni
Using NuDat classes to plot EC T1/2
0+ to 0+ OO decays, ex. 34Cl 34S
Problem in ENSDF?
Same Jp decays, ex. 25Al 25Mg
NSDD 2015 #4 - Alejandro Sonzogni
We will query ENSDF to obtain reliable ECp values to plot Pp/T1/2
Z=47
Z=14, 20
63 cases, with Z=14-80Scatter on the plot is mainly due to Z, which the proton is sensitive to
NSDD 2015 #5 - Alejandro Sonzogni
A better assumption would be to assume that Pp = ∫ T(Ep) dEp, where T(Ep)=(1+exp( a(Vb-Ep) )-1, and Vb=1.44 Z/Ro A1/3
NSDD 2015 #6 - Alejandro Sonzogni
No adjustable parametersPhys. Rev. C 91, 011301(R) (2015)
For energies > 5 MeV, the electron and antineutrino spectra are mainly
due to about 20 nuclidesThe decay of these nuclides is of
great interest
Recent Antineutrino Spectra Calculations
NSDD 2015 #7 - Alejandro Sonzogni
The integral of antineutrino multiplicity has a similar behavior as the delayed neutron multiplicity.
Target Delayed neutronmultiplicity/fission
238U 4.4E-2
235U 1.59E-2
241Pu 1.62E-2
239Pu 6.45E-3
n + p n + e+ cross section integrated spectra
NSDD 2015 #8 - Alejandro Sonzogni
235U thermal fission yields
235U thermal Yi/<sI>
Yi=CFYi∫s(e)Ini(e)
<sI>=SYi
NSDD 2015 #9 - Alejandro Sonzogni
238U fast Yi/<sI>
239Pu thermal Yi/<sI>
NSDD 2015 #10 - Alejandro Sonzogni
Systematics of <sI> with (3Z-A)
LFF: Light fission fragments ( Z<47)
HFF: Heavy Fission Fragments (Z >= 47)
EE: Even-Z, Even-NEO: Even-Z, Odd-NOE: Odd-Z, Even-NOO: Odd-Z, Odd-N
NSDD 2015 #11 - Alejandro Sonzogni
Next workshop on
Modeling of Antineutrino Flux from Nuclear Reactors
June 2016
Port Jefferson or BNL
Tentatively Tuesday 6/14 – Thursday 6/16, 2016
1st workshop took place at the INT, Seattle, 11/20132nd workshop SUBATECH, Nantes, 01/2015
NSDD 2015 #12 - Alejandro Sonzogni
235U Thermal
Relation to decay heat
NSDD 2015 #13 - Alejandro Sonzogni
235U Thermal 92Rb, 100Nb, 96Y, 101Nb,102Nb
NSDD 2015 #14 - Alejandro Sonzogni
The data in ENSDF is the foundation for nuclear reactor antineutrino spectra and decay heat calculations.
Many of the JAVA classes developed for NuDat have been used to calculate and plot these quantities as well as beta delayed neutron emitter properties.
Some of these classes are also part of EVP and Sigma.
Conclusions