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Recycling NuDat Programs A.A. Sonzogni, T.D. Johnson, E.A. McCutchan, National Nuclear Data Center Brookhaven National Laboratory Building 817 Upton, NY.

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Presentation on theme: "Recycling NuDat Programs A.A. Sonzogni, T.D. Johnson, E.A. McCutchan, National Nuclear Data Center Brookhaven National Laboratory Building 817 Upton, NY."— Presentation transcript:

1 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

2 NSDD 2015 #2 - Alejandro Sonzogni Using NuDat classes to plot beta-minus T 1/2 Kratz-Hermann systematics

3 NSDD 2015 #3 - Alejandro Sonzogni Using NuDat classes to plot EC T 1/2 0+ to 0+ OO decays, ex. 34Cl  34S Problem in ENSDF? Same J  decays, ex. 25Al  25Mg

4 NSDD 2015 #4 - Alejandro Sonzogni We will query ENSDF to obtain reliable ECp values to plot P p /T 1/2 Z=4 7 Z=14, 20 63 cases, with Z=14-80 Scatter on the plot is mainly due to Z, which the proton is sensitive to

5 NSDD 2015 #5 - Alejandro Sonzogni A better assumption would be to assume that P p = ∫ T(E p ) dE p, where T(E p )=(1+exp(  (V b -E p ) ) -1, and V b =1.44 Z/Ro A 1/3

6 NSDD 2015 #6 - Alejandro Sonzogni No adjustable parameters Phys. Rev. C 91, 011301(R) (2015) For energies > 5 MeV, the electron and antineutrino spectra are mainly due to about 20 nuclides The decay of these nuclides is of great interest Recent Antineutrino Spectra Calculations

7 NSDD 2015 #7 - Alejandro Sonzogni The integral of antineutrino multiplicity has a similar behavior as the delayed neutron multiplicity. TargetDelayed neutron multiplicity/fission 238U4.4E-2 235U1.59E-2 241Pu1.62E-2 239Pu6.45E-3 + p  n + e + cross section integrated spectra

8 NSDD 2015 #8 - Alejandro Sonzogni 235U thermal fission yields 235U thermal Y i / Y i =CFY i ∫  (e)I i(e) =  Yi

9 NSDD 2015 #9 - Alejandro Sonzogni 238U fast Y i / 239Pu thermal Y i /

10 NSDD 2015 #10 - Alejandro Sonzogni Systematics of with (3Z-A) LFF: Light fission fragments ( Z<47) HFF: Heavy Fission Fragments (Z >= 47) EE: Even-Z, Even-N EO: Even-Z, Odd-N OE: Odd-Z, Even-N OO: Odd-Z, Odd-N

11 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 1 st workshop took place at the INT, Seattle, 11/2013 2 nd workshop SUBATECH, Nantes, 01/2015

12 NSDD 2015 #12 - Alejandro Sonzogni 235U Thermal Relation to decay heat

13 NSDD 2015 #13 - Alejandro Sonzogni 235U Thermal 92Rb, 100Nb, 96Y, 101Nb,102Nb

14 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


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