The 22th, Year 2019 LANE Colloquium
"Nuclear Engineering Research in MEPhI, Russia" |
| Lecturer： |
M. Panin, A.Tenishev, A.Semenov, K.Kutsenko, V.Dmitrenko |
| Affiliation： |
Nuclear Research National University MEPhI |
| Date： |
2020.2.18 (Tue) 10:00-12:00 |
| Location： |
North Bldg. #1, 1st Floor Meeting Room |
| Language： |
English |
| Outline： |
The current research activities in Nuclear Research National University MEPhI, Russia will be presented by the professors. The talks are:
M. Panin, Assessment and forecast of radiation situation based on simulating the consequences of radiation accidents
A.Tenishev, Nuclear materials science in NRNU MEPhI
A.Semenov, Prospects for the development of high-speed neutron-physical codes.
K.Kutsenko, Transient heat transfer processes and boiling crisies
V.Dmitrenko, Noble gas gamma spectrometer |
The 13th, Year 2019 Colloquium
"Multiplicity of Scission Neutrons from Density Functional Scission Dynamics" |
| Lecturer： |
Nicolae Carjan |
| Affiliation： |
National Institute for Physics and Nuclear Engineering ’Horia Hulubei ’ , Bucharest, Romania |
| Date： |
2019.10.30(Wed) 15:00-16:30 |
| Location： |
North Bldg. #2, 6th Floor Meeting Room |
| Language： |
English |
| Outline： |
The time evolution of the nuclear density of the fissioning system 240Pu during the scission process is obtained from the time-dependent superfluid local-density approximation (TDSLDA) to the density functional theory and a phenomenological dynamical scission model (DSM).
We find that multiplicity of scission neutron =1.347, i.e. half of the prompt fission neutrons measured in the reaction 239Pu(nth,f) are released at scission. |
The 11st, Year 2019 Colloquium
"Accident Tolerant Fuel?" |
| Lecturer： |
Ronald G. Ballinger |
| Affiliation： |
Dept. of Nuclear Science and Engineering, MIT |
| Date： |
2019.10.10(Thu) 17:00-18:30 |
| Location： |
North Bldg. #2, 6th Floor Meeting Room |
| Language： |
English |
| Outline： |
The Fukushima accident has prompted the development of several advanced LWR fuel designs. The goal of these “Accident Tolerant Fuel” (ATF) designs is to provide improved robustness during a beyond design basis accident. In the US accident in question is a station blackout (SBO) event. However, the Fukushima accident has also resulted in mandatory plant modifications to mitigate against a SBO. Plant modifications-termed Diverse and Flexible Coping Strategies (FLEX) have been implemented at all US plants. In this talk the various ATF designs will be discussed considering : (1) margin gained during an SBO, (2) margin gained during abnormal and accident events, and (3) cost/benefit considerations related to implementation. |
The 7th, Year 2019 Colloquium
"Nuclear Structure Studies based on Total Absorption Spectroscopy" |
| Lecturer： |
Prof. Alejandro Algora |
| Affiliation： |
Instituto de Fisica Corpuscular (Valencia, Spain) and
RIKEN Nishina Center (Wako, Japan)） |
| Date： |
2019.8.6(Tue) 15:00-16:30 |
| Location： |
North Bldg. #2, 6th Floor Meeting Room |
| Language： |
English |
| Outline： |
Total absorption spectroscopy can provide beta decay data free from the systematic error called the Pandemonium effect. Applying this technique can be relevant for nuclear structure studies that require a proper determination of the distribution of the beta strength in the daughter nucleus. In this presentation, the study of the beta decay of the very exotic 100Sn decay at the RIBF facility at RIKEN will be presented. Additionally the study of the beta decay of 186Hg will also be shown. |
The 4th, Year 2019 Colloquium
"Cyber, Inside Nuclear Security in the Context of 3S(Safety, Security, and Safeguards)" |
| Lecturer： |
Jor-Shan Choi |
| Affiliation： |
Lawrence Livermore National Laboratory |
| Date： |
2019.5.27(Mon) 10:30-12:00 |
| Location： |
North Bldg. #2, 6th Floor Meeting Room |
| Language： |
English |
| Outline： |
Cyber threats are increasingly one of the major threats facing all countries. In nuclear facilities, a cyber attack could knock out digital control systems vital to ensuring the security of plants and materials, to an extent causing physical damages or losing human lives. In this talk, an assessment of the cyber risks, within nuclear security, will be explored and discussed in the context of 3S (Safety, Security, and Safeguards). |
The 1st, Year 2019 Colloquium
"Research on adsorption heat storage and transformation at the Boreskov Institute of Catalysis" |
| Lecturer： |
Yuriy Arisotv, WRHI Special Appointed Prof. |
| Affiliation： |
Laboratory for Advanced Nuclear Energy, Institute of Innovative Research, Tokyo Tech, Boreskov Institute of Catalysis |
| Date： |
2019.4.4日(Mon) 16:00-17:00 |
| Location： |
North Bldg. #1, 1st Floor Meeting Room |
| Language： |
English |
| Outline： |
This presentation addresses the research activity on adsorption heat storage and transformation developed at the Boreskov Institute of Catalysis. The main attention will be focused on a) recently synthesized composite sorbents "salt in porous matrix" for long-term storage of low temperature heat, and b) a new adsorptive approach for heat amplification (the so-called "Heat from Cold" cycle). |
The 15th, H30 Colloquium
"TENDL and Bayesian Monte Carlo: how far can we go ?" |
| Lecturer： |
Dimitri Alexandre Rochman |
| Affiliation： |
LRT, NES, PSI, Switzerland |
| Date： |
2018.12.4(Tue) 10:00-12:00 |
| Location： |
North Bldg. #2, 6th Floor Meeting Room |
| Language： |
English |
| Outline： |
In this presentation, I will introduce the TENDL library and the underlying code system used to produce it, called T6. Based on this powerful tool, the Total Monte Carlo idea (TMC) and Bayesian Monte Carlo (BMC) will be presented with two examples on cross-isotope correlations and fission yield covariance matrices. |
The 11st, H30 Colloquium
"Impact of pear-shaped fission fragments on mass-asymmetric fission" |
| Lecturer： |
Guillaume Scamps |
| Affiliation： |
Center for Computational Sciences, University of Tsukuba |
| Date： |
2018.11.5(Mon) 13:00-14:30 |
| Location： |
North Bldg. #2, 6th Floor Meeting Room |
| Language： |
English |
| Outline： |
The fission of most of the actinide results in an asymmetric splitting with a heavy fragment with a charge around Z=54. We used the Time-dependent Hartree-Fock (TDHF) with the BCS approximation to simulate the fission of 7 actinides nuclei. For all of them, we found the correct charge splitting with a heavy fragment produced predominantly with 52-56 protons. Using the nucleon localisation function, we show that the pre-fragments acquired quickly a strong octupole shape. |
The 5th, H30 Colloquium
"Mathematical modelling of mass transfer during liquid-liquid plug flow in small scale channels" |
| Lecturer： |
Miguel Arnaldo Pineda Rodriguez |
| Affiliation： |
University College of London |
| Date： |
2018.7.26(Thu) 15:00-16:00 |
| Location： |
North Bldg. #2, 6th Floor Meeting Room |
| Language： |
English |
| Outline： |
Analysis of radioactive nuclides has been essential for realizing efficient and safe treatment and disposal of radioactive wastes from nuclear power plants. Herein, I will discuss two mathematical modelling frameworks to study the extraction of radionuclides in two-phase systems during plug flow in a single microchannel. Possible extensions of these mathematical approaches are also discussed for multiple separations of individual metals contained in the waste. |
