Fission Neutrons: Experiments, Evaluation, Modeling and Open Problems

Fission Neutrons: Experiments, Evaluation, Modeling and Open Problems

by Nikolay Kornilov

Paperback(Softcover reprint of the original 1st ed. 2015)

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Product Details

ISBN-13: 9783319352275
Publisher: Springer International Publishing
Publication date: 11/04/2016
Edition description: Softcover reprint of the original 1st ed. 2015
Pages: 132
Product dimensions: 6.10(w) x 9.25(h) x 0.01(d)

About the Author

Born in the Republic of Russia, the author now resides in the USA resident since 2011. He obtained his PhD and Doctorate of Science in Physics and Mathematics at the Moscow Physical Engineering Institute. His professional experience includes research at the Institute for Physics and Power Engineering (IPPE, Obninsk, Russia) and as a visiting scientist at IRMM-JRC. Currently he works as a researcher in Department of Physics and Astrophysics of Ohio University, where he began working in 2009. He also has heldnumerous visiting positions with the IAEA and is the author of over 150 publications.

Table of Contents

Introduction.- Experiments.- 2. Microscopic experiments.- Method based on fission event counting.- Neutron spectroscopy by Time of Flight Method (TOF).- Time correlated background.- Time shift in neutron detector.- Neutron-gamma discrimination and its influence on results.- Measurement of the neutron detector efficiency.-Time resolution and “bin” corrections.- Additional time spread for “solid sample” experiment at low input energy.- Possible distortion factors in 2nd type experiment.- The calculation of the detector efficiency with high accuracy up to 20MeV.- Correction for neutron scattering in FF detector.- Multi detectors systems and “cross talk correction”.- Macroscopic experiments.- 3. Microscopic spectra evaluation. Semi-empirical modeling.- Maxwellian function and Terrell’s systematic.- 252Cf spectrum evaluation.- Two Watt Spectra (TWS) approach.- Maxwellian together with power expansion for 235U(th).- Scale Method.- PFNS for multiple chance fission.- 4. Models for neutron emission in fission.- Basis for theoretical modeling.- True or plausible results?.- Model realized in code FINE (FIssion Neutron Emission).- Estimation of the two-dimensional Y(A,TKE) distribution.- Neutron emission from excited fragments.- Monte Carlo simulation of energy-angular distribution. Verification.- Level Density verification.- Comparison experimental and calculated results.- 5. Achievements and still open problems.- Real achievements.- Mechanism of neutron emission in fission.- Left-right and angular effects for fission neutron emission at 0.5 MeV input energy.- Contradiction between Microscopic and Macroscopic experiments (Mic-Mac problem).- New experimental proposal.

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