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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Fission Neutrons: Experiments, Evaluation, Modeling and Open Problems

Fission Neutrons: Experiments, Evaluation, Modeling and Open Problems

Kornilov, Nikolay

Paperback

ChemistryPhysics

ISBN10: 331935227X
ISBN13: 9783319352275
Publisher: Springer Nature
Published: Sep 21 2016
Pages: 132
Weight: 0.45
Height: 0.30 Width: 6.14 Depth: 9.21
Language: English

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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