Delayed-Neutron Branching Ratios of Precursors in the Fission Product Region

1993 ◽  
Vol 53 (1) ◽  
pp. 1-22 ◽  
Author(s):  
G. Rudstam ◽  
K. Aleklett ◽  
L. Sihver
Keyword(s):  
Fission Product ◽  
Branching Ratios ◽  
Delayed Neutron

scholarly journals Application of evaluated fission-product delayed-neutron precursor data in reactor kinetics calculations

1986 ◽  
Vol 94 (1-4) ◽  
pp. 43-47 ◽  
Author(s):  
Robert T. Perry ◽  
William B. Wilson ◽  
Talmadge R. England ◽  
Michaele C. Brady
Keyword(s):  
Fission Product ◽  
Delayed Neutron ◽  
Reactor Kinetics

scholarly journals Prompt and Delayed Neutron Emissions and Fission Product Yield Calculations with Hauser-Feshbach Statistical Decay Theory and Summation Calculation Method

2019 ◽  
Vol 211 ◽  
pp. 04005 ◽  
Author(s):  
Shin Okumura ◽  
Toshihiko Kawano ◽  
Satoshi Chiba
Keyword(s):  
Fission Product ◽  
Fission Fragment ◽  
Neutron Emission ◽  
Product Yield ◽  
Prompt Neutron ◽  
Delayed Neutron ◽  
Statistical Decay ◽  
Fission Product Yield ◽  
Neutron Multiplicities ◽  
D Model

We demonstrate the neutron emission and fission product yield calculations using the Hauser–Feshbach Fission Fragment Decay (HF3D) model and β decay. The HF3D model calculates the statistical decay of more than 500 primary fission fragment pairs formed by the neutron induced fission of 235U. In order to calculate the prompt neutron and photon emissions, the primary fission fragment distributions, i.e. mass, charge, excitation energy, spin and parity are deterministically generated and numerically integrated for all fission fragments. The calculated prompt neutron multiplicities, independent fission product yield are fully consistent each other. We combine the β-decay and the summation calculations with the HF3D model calculation to obtain the cumulative fission product yield, decay heat and delayed neutron yield. The calculated fission observables are compared with available experimental data.

Delayed Neutron Noise Characteristics of an In-Pile Fission Product Loop

1992 ◽  
Vol 99 (1) ◽  
pp. 58-69
Author(s):  
Tetsuo Tamaoki ◽  
Takuhiko Sakai ◽  
Hiroshi Endo ◽  
Kazuo Haga ◽  
Ryoichi Takahashi
Keyword(s):  
Fission Product ◽  
Delayed Neutron ◽  
Noise Characteristics ◽  
Neutron Noise

Delayed neutron measurements with a natural uranium fission product source in Fast Breeder Test Reactor

2014 ◽  
Vol 65 ◽  
pp. 314-319 ◽  
Author(s):  
G. Srinivasan ◽  
R.S. Keshavamurthy ◽  
D.V. Subramanian ◽  
Adish Haridas ◽  
C.P. Reddy ◽  
...  
Keyword(s):  
Fission Product ◽  
Natural Uranium ◽  
Delayed Neutron ◽  
Fast Breeder Test Reactor ◽  
Test Reactor ◽  
Uranium Fission

scholarly journals Summation Calculations for Reactor Antineutrino Spectra, Decay Heat and Delayed Neutron Fractions Involving New TAGS Data and Evaluated Databases

2019 ◽  
Vol 211 ◽  
pp. 01001
Author(s):  
M. Estienne ◽  
M. Fallot ◽  
L. Giot ◽  
V. Guadilla-Gomez ◽  
L. Le Meur ◽  
...  
Keyword(s):  
Fission Product ◽  
Neutron Emission ◽  
Fission Products ◽  
Nuclear Data ◽  
Delayed Neutron ◽  
Data Bases ◽  
Decay Data ◽  
Decay Heat ◽  
Reactor Antineutrino ◽  
Decay Properties

Three observables of interest for present and future reactors depend on the β decay properties of the fission products: antineutrinos from reactors, the reactor decay heat and delayed neutron emission. In these proceedings, we present new results from summation calculations of the first two quantities quoted above, performed with evolved independent yields coupled with fission product decay data, from various nuclear data bases or models. New TAGS results from the latest experiment of the TAGS collaboration at the JYFL facility of Jyväskylä will be displayed as well as their impact on the antineutrino spectra and the decay heat associated to fission pulses of the main actinides.

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