Fission product yield distribution in the 12, 14, and 16 MeV bremsstrahlung-induced fission of 232Th

2015 ◽  
Vol 51 (11) ◽  
Author(s):  
H. Naik ◽  
G. N. Kim ◽  
R. Schwengner ◽  
K. Kim ◽  
R. John ◽  
...  
Keyword(s):  
Fission Product ◽  
Product Yield ◽  
Yield Distribution ◽  
Fission Product Yield ◽  
Induced Fission

Fission Product Yield in the Neutron-Induced Fission of232Th with Average Energies of 5.42, 7.75, and 10.09 MeV

2014 ◽  
Vol 176 (1) ◽  
pp. 106-113 ◽  
Author(s):  
P. M. Prajapati ◽  
H. Naik ◽  
S. Mukherjee ◽  
S. V. Suryanarayana ◽  
B. S. Shivashankar ◽  
...  
Keyword(s):  
Fission Product ◽  
Product Yield ◽  
Fission Product Yield ◽  
Induced Fission

Measurements of fission product yield in the neutron-induced fission of 238U with average energies of 9.35 MeV and 12.52 MeV

2014 ◽  
Vol 65 (1) ◽  
pp. 18-24 ◽  
Author(s):  
Sadhana Mukerji ◽  
Pritam Das Krishnani ◽  
Byrapura Siddaramaiah Shivashankar ◽  
Vikas Kaluram Mulik ◽  
Saraswatula Venkat Suryanarayana ◽  
...  
Keyword(s):  
Fission Product ◽  
Product Yield ◽  
Fission Product Yield ◽  
Induced Fission

scholarly journals Fission Product Yield Measurements from Neutron-Induced Fission of 235,238 U and 239Pu

2020 ◽  
Vol 232 ◽  
pp. 03006
Author(s):  
M. A. Stoyer ◽  
A. P. Tonchev ◽  
J. A. Silano ◽  
M. E. Gooden ◽  
J. B. Wilhelmy ◽  
...  
Keyword(s):  
Fission Product ◽  
Nuclear Physics ◽  
Fission Products ◽  
Product Yield ◽  
Tandem Accelerator ◽  
Precision Data ◽  
High Precision Data ◽  
Induced Fission ◽  
The Impact ◽  
Fission Yields

Fission product yields (FPY) are one of the most fundamental quantities that can be measured for a fissioning nucleus and are important for basic and applied nuclear physics. Recent measurements using mono-energetic and pulsed neutron beams generated using Triangle Universities Nuclear Laboratory’s tandem accelerator and employing a dual fission chamber setup have produced self-consistent, high-precision data critical for testing fission models for the neutron-induced fission of 235,238U and 239Pu between neutron energies of 0.5 to 15.0 MeV. These data have elucidated a low-energy dependence of FPY for several fission products using irradiations of varying lengths and neutron energies. This paper will discuss new measurements just beginning utilizing a RApid Belt-driven Irradiated Target Transfer System (RABITTS) to measure shorterlived fission products and the time dependence of fission yields, expanding the measurements from cumulative towards independent fission yields. The uniqueness of these FPY data and the impact on the development of fission theory will be discussed.

Reaction rate, fission product yield, and Rossi-α measurements using a HEU metal, copper reflected critical assembly

2015 ◽  
Vol 52 (7-8) ◽  
pp. 1018-1025 ◽  
Author(s):  
Rene Sanchez ◽  
John Bounds ◽  
Todd Bredeweg ◽  
Joetta Goda ◽  
Travis Grove ◽  
...  
Keyword(s):  
Fission Product ◽  
Reaction Rate ◽  
Product Yield ◽  
Critical Assembly ◽  
Fission Product Yield

scholarly journals FY2012 L2 Milestone Report ? Modernizing the Fission Basis: Fission Product Yield Energy Dependence Measurements at TUNL

2012 ◽  
Author(s):  
David J. Vieira ◽  
Charles Arnold ◽  
Morgan C. White ◽  
Jerry B. Wilhelmy ◽  
Malcolm M. Fowler ◽  
...  
Keyword(s):  
Fission Product ◽  
Energy Dependence ◽  
Product Yield ◽  
Fission Product Yield

scholarly journals 235U(n, f) Independent fission product yield and isomeric ratio calculated with the statistical Hauser–Feshbach theory

2018 ◽  
Vol 55 (9) ◽  
pp. 1009-1023 ◽  
Author(s):  
Shin Okumura ◽  
Toshihiko Kawano ◽  
Patrick Jaffke ◽  
Patrick Talou ◽  
Satoshi Chiba
Keyword(s):  
Fission Product ◽  
Isomeric Ratio ◽  
Product Yield ◽  
Fission Product Yield

scholarly journals Employing FREYA for fission product yield evaluations

2020 ◽  
Vol 242 ◽  
pp. 03002
Author(s):  
R. Vogt ◽  
J. Randrup ◽  
N. Vassh ◽  
T. Sprouse ◽  
R. Surman
Keyword(s):  
Fission Product ◽  
Product Yield ◽  
Fission Yield ◽  
Fission Reaction ◽  
Product Yields ◽  
Large Samples ◽  
Reaction Event ◽  
Fission Product Yields ◽  
The Future ◽  
Fission Product Yield

The fast event-by-event fission code FREYA (Fission Reaction Event Yield Algorithm) generates large samples of complete fission events while employing only a few physics-based parameters. Not only is FREYA fast, it is also flexible, able to employ a variety of input formats to test the implications of various fission yield evaluations on neutron and photon observables. We describe how FREYA was applied to the neutron-rich nuclei needed for r-process nucleosynthesis calculations as an example of this flexibility. Finally, we discuss how we plan to make use of this flexibility to extend FREYA to calculations of cumulative fission product yields to aid evaluations of these yields in the future.

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.

scholarly journals Fission product yield measurements using monoenergetic photon beams

2017 ◽  
Vol 146 ◽  
pp. 04018 ◽  
Author(s):  
Krishichayan ◽  
M. Bhike ◽  
A.P. Tonchev ◽  
W. Tornow
Keyword(s):  
Fission Product ◽  
Product Yield ◽  
Photon Beams ◽  
Fission Product Yield
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