PERSONAL: born in 1954 in Omsk, Russia, Russian Citizen

PERMANENT: Prospekt Marxa, 35 Omsk State Transport University, Physics and Chemistry Department, 644046, Omsk, Russian Federation

E-MAILvigichar@hotmail.com


ACADEMIC QUALIFICATIONS:
1995   D.Sc. Russian degree of Doctor of Physical and Mathematical Science awarded in Nuclear and Elementary Particle Physics by the Laboratory of Theoretical Physics of Joint Institute for Nuclear Research, Dubna
1984 Ph.D., Institute of Nuclear Physics, Tomsk Polytechnical Institute, Tomsk, Russia, (Russian Candidate of Physical and Mathematical Science). Topic: Nuclear and Elementary Particle Physics
1979 Diploma, (M.Sc. equivalent) Omsk State University, Omsk, Russia. Topic: Instabilities of Cold Plasma
RESEARCH GRANTS AND AWARDS:
2001, 2002, 2003:   Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, Australia; Research Fellow, 15 months
2000: Universite Libre de Bruxelles, Brussels, Belgium; Guest Scientist, 2 months
1999: Grand Accelerator d'Ions Lourd, Caen, France; Scientist, 3 months
1999: International Soros Science Educational Program; Professor grant, 1 year this is for both teaching and research, teaching is the obligatory condition
1998: Institute of Nuclear Physics, Grenoble, France; Scientist, 3 months
1998, 1997, 1996: International Soros Science Educational Program; Professor grant, each 1 year this was for both teaching and research, teaching was the obligatory condition
1996: Hahn-Meitner Institut, Berlin, Germany; Guest Scientist, 2 months
1993: Railway Engineering Institute, Omsk; Research Fellowship, 3 months
1993: Hahn-Meitner Institute, Berlin, Germany; Guest Scientist, 9 months
1992: Railway Engineering Institute, Omsk; Research Fellowship, 3 months
1992: Hahn-Meitner Institute, Berlin, Germany; Guest Scientist, 9 months
1991: Hahn-Meitner Institute, Berlin, Germany; Guest Scientist, 3 months
RESEARCH EXPERIENCE:
1974-1979   Omsk State University Topic: Instabilities of Cold Plasma
1981-1984 Institute of Nuclear Physics, Tomsk. Topic: Dynamics of Formation of Fission-Fragment Distributions
1984-1987 Railway Engineering Institute, Omsk Topic: Relaxation Times of Collective Modes in Fission
1987-1993 Railway Engineering Institute, Omsk Topic: Langevin simulation of Fission Dynamics
1991, 1992, 1993 (22 months) Hahn-Meitner Institut, Berlin Topic: Langevin simulation of Fission Dynamics
1996 (2 months) Hahn-Meitner Institut, Berlin Topic: Langevin simulation of Fission Dynamics, the problem of interpretation of the Langevin equations
1996 (2 months) Hahn-Meitner Institut, Berlin Topic: Langevin simulation of Fission Dynamics, the problem of interpretation of the Langevin equations
1998 (3 months) Institute of Nuclear Physics, Grenoble, France Topic: Langevin Simulation of Fission Dynamics, emission of particles from the fission fragments
1994-99 Omsk State Railway University, Omsk Topic: Langevin simulation of Fission Dynamics, multidimensional model of the compound-nucleus deexcitation process
1999-2000 (3 months) Grand Accelerator d'Ions Lourd, Caen, France. Topic: Langevin Calculations of Fission Lifetimes
2001-2002 Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, Australia; Topic: Theoretical Modeling of Heavy Ion Fusion Process
COMPUTING EXPERIENCE:
More than 30 yrs. conceiving, writing, debugging, and applying scientific programs applying FORTRAN and C using large mainframe systems, IBM-compatible PCs, workstations ALPHA and HP, Apple computers under MAC OS.
TEACHING EXPERIENCE:
Lecturing on Classical Mechanics and supervising seminars on Classical Mechanics, Classical Electrodynamics, Mechanics and Thermodynamics, and Complex Analysis at Physical Department of Omsk State University for 4 years.
Lecturing and supervising seminars on all parts of General Physics: Mechanics, Electricity and Magnetism, Optics, Heat, Atomic and Molecular Physics, Physics of semiconductors, Concepts of Contemporary Natural Sciences at Physics and Chemistry Department of Omsk State Railway University for about 30 yrs.
Supervising (formally and informally) Ph.D students for more than 20 years.
ORGANISATION OF SCIENCE:
1999-2001   Member of two Councils on Defense of Candidate Dissertations — one at the Omsk State University (theoretical and nuclear physics) and another at Omsk Institute of Applied Mathematics and Information Technologies (computer simulation of physical processes)
2004-2011   Member of the Council on Defense of Candidate Dissertations at the Omsk State University (theoretical physics and physics of condensed matter)
PREVIOUS POSITIONS HELD:
1994-2013:   Professor of the Physics and Chemistry Department of the Omsk State Railway University (former Railway Engineering Academy)
1993-1994:   Senior Lecturer on General Physics at Omsk State Railway Academy (former Railway Engineering Institute)
1991-1993:   Research Fellow of Railway Engineering Institute, Omsk, Russia
1987-1991:   Senior Lecturer on General Physics at Railway Engineering Institute, Omsk, Russia
1984-1987:   Lecturer on General Physics at Railway Engineering Institute, Omsk, Russia
1979-1984:   Lecturer at Theoretical Physics Department of Omsk State University, Omsk, Russia
1977-1979:   Research and Teaching Assistant at Omsk State University, Omsk, Russia

COUNTRY OF CITIZENSHIP: Russian Citizen

MAIN RESEARCH PUBLICATIONS:

71) M.V. Chushnyakova and I.I. Gontchar// Memory versus fluctuations in heavy ion fusion // J. Phys. G 40 (2013) 095108 18pp doi: :10.1088/0954-3899/40/9/095108
70) M.V. Chushnyakova and I.I. Gontchar// Heavy ion fusion: Possible dynamical solution of the problem of the abnormally large diffuseness of the nucleus-nucleus potential// Phys. Rev. C 87 (2013) 014614 13pp http://dx.doi.org/10.1103/PhysRevC.87.014614
69) I.I. Gontchar, M.V. Chushnyakova// A C-code for the double folding interaction potential for reactions involving deformed target nuclei // Computer Physics Communications 184 (2013) 172-182 http://dx.doi.org/10.1016/j.cpc.2012.08.013
68) E.G. Pavlova, N.E. Aktaev, I.I. Gontchar // Corrections to the Kramers formula for the fission rate of excited nuclei// Bull. Rus. Acad. Sci. Phys. 76 (2012) 1098-1102
67) E.G. Pavlova, N.E. Aktaev, I.I. Gontchar // Modified Kramers formulas for decay rate in agreement with dynamical modeling // Physica A 391 (2012) 6084-6100
66) I.I. Gontchar, R.A. Kuzyakin, E.G. Pavlova, N.E. Aktaev// The nuclear fission process as Brownian motion: modifying the Kramers fission rates// Journal of Physics: Conference Series 381 (2012) 012089 doi:10.1088/1742-6596/381/1/012089
65) I.I. Gontchar, N.E. Aktaev, A.L. Litnevsky, E.G. Pavlova // Applying Kramers formula for the nuclear fission problem: how much accurate is it? // Journal of Physics: Conference Series 312 (2011) 082023 http://iopscience.iop.org/1742-6596/312/8/082023
64) N.E. Aktaev and I.I. Gontchar // A modified Kramers approach to describing the fission of excited atomic nuclei//. Bulletin of the Russian Academy of Sciences: Physics 75 (2011) 994-997
63) I.I. Gontchar and R.A. Kuzyakin// Integral Kramers formula for the fission rate versus the dynamical modeling: the case of deformation-dependent temperature// Phys Rev C 84 (2011) 014617 
http://prc.aps.org/abstract/PRC/v84/i1/e014617
62) I.I. Gontchar, E.G. Pavlova, A.L. Litnevsky, N.E. Aktaev// How much accurate is description of nuclear fission rate by means of the Kramers formula? // International Conference NPAE, June 7-12, 2010, Kiev, Ukraine, Proceedings, p.46-50 http://www.kinr.kiev.ua/NPAE-Kyiv2010/html/Proceedings.html
61) I.I. Gontchar, M.V. Chushnyakova, N.E. Aktaev, A.L. Litnevsky, E.G. Pavlova// Disentangling effects of potential shape in the fission rate of heated nuclei// Phys. Rev. C (2011) refereeing process
60) N.E. Aktaev and I.I. Gontchar // Comment on «Systematic description of evaporation spectra for light and heavy compound nuclei» by R.J. Charity Phys. Rev. C 82 (2010) 059801 http://prc.aps.org/abstract/PRC/v82/i6/e059801
59) I.I. Gontchar, M.V. Chushnyakova// A C-code for the double-folding interaction potential of two spherical nuclei// Computer Physics Communications 181 (2010) 168-182
58) N.E. Aktaev, I.I. Gontchar// Dynamical and statistical simulation of the fission of highly excited atomic with allowance for the relaxation state// Bulletin of the Russian Academy of Sciences: Physics. 74 (2010) 513-516
57) M.V. Chushnyakova, N.E. Aktaev, I.I. Gontchar// The effect of difference between neutron and proton density distributions on the nuclei fusion barrier in a double folding model// Bulletin of the Russian Academy of Sciences: Physics. 73 (2009)185-186
56) I.I. Gontchar// The nuclear fission process as a Brownian motion: open problems, analytical solutions and dynamical modeling// Proceedings of the 2 International Conference “Current Problems in Nuclear Physics and Atomic Energy” (NPAE-Kyiv2008) June 9 - 15, 2008, Kyiv, Ukraine, p. 206-209 published in Kyiv (2009)
55) I.I. Gontchar// Dynamical simulation of the fission process involving one or two degrees of freedom: effect on fission times// Phys. At. Nucl. 72 (2009) 1659-1663
54) I.I. Gontchar and N.E. Aktaev// Importance of the relaxation stage for adequate modeling of nuclear fission accompanied by light particle emission// Phys. Rev C 80 (2009) 044601 http://prc.aps.org/abstract/PRC/v80/i4/e044601
53) I.I. Gontchar, N.A. Ponomarenko, A.L. Litnevsky// Effect of the initial excitation energy of the average fission lifetime of nuclei// Physics of Atomic Nuclei 71 (2008)1143-1148
52) I.I. Gontchar, N.A. Ponomarenko//The influence of the nucleonic content on the duration of fission of exited nuclei// Physics of Atomic Nuclei 70 (2007)2051-2067
51) I.I. Gontchar, D. J. Hinde, M. Dasgupta, C.R. Morton, J.O. Newton// Semi-microscopic calculations of the fusion barrier distributions for reactions involving deformed target nuclei// Phys. Rev. C 73 (2006) 034610 http://prc.aps.org/abstract/PRC/v73/i3/e034610
50) I.I. Gontchar, M. Dasgupta, D.J. Hinde, J.O. Newton// The Finite Size Effects in fusion of deformed nuclei at incident energies near the barrier// Physics of Atomic Nuclei 69 (2006)1428-1433
49) I.I. Gontchar, D.J. Hinde, M. Dasgupta, J.O. Newton// Double folding nucleus-nucleus potential applied to heavy-ion fusion reactions// Phys. Rev. C 69 (2004) 024610 http://prc.aps.org/abstract/PRC/v69/i2/e024610
48) I.I. Gontchar, N.A. Ponomarenko, V.V. Turkin, L.A. Litnevsky//Theoretical investigation of the angular-momentum dependence of the mean fission lifetime of excited nuclei// Physics of Atomic Nuclei 67 (2004) 2080-2094
47) I.I. Gontchar, L.A. Litnevsky, N.A. Ponomarenko, V.V. Turkin// The resonance-like dependence of the average fission lifetime upon the parameters of the exited nucleus// Nucl. Phys. A 734c (2004) 229-232
46) I.I. Gontchar, N.A. Ponomarenko// Evolution of the fission lifetime distributions for highly excited nuclei with the increase of the fissility parameter// Nucl. Phys.A 734S (2004) E41-E44
45) J.O. Newton, R.D. Butt, M. Dasgupta, D.J. Hinde, I.I. Gontchar, C.R. Morton, K. Hagino// Systematics of precise nuclear fusion cross sections: the need for a new dynamical treatment of fusion?// Phys. Lett. B 586 (2004) 219-224
44) J.O. Newton, R.D. Butt, M. Dasgupta, D.J. Hinde, I.I. Gontchar, C.R. Morton// Systematic failure of the Woods-Saxon nuclear potential to describe both fusion and elastic scattering, suggesting the need for a new dynamical approach to fusion// Phys. Rev. C 70(2004) 024605 http://prc.aps.org/abstract/PRC/v70/i2/e024605
43) I.I. Gontchar, D.J. Hinde, M. Dasgupta, J.O. Newton// Surface diffuseness of nuclear potential from heavy-ion fusion reactions// Nucl. Phys. A 722 (2003) 479c-483c
42) W. Wagner, I.I. Gontchar, A.E. Gettinger, L.A. Litnevsky, H.-G. Ortlepp, D.V. Kamanin/ Novel features of the fragment mass variance in fission of hot nuclei// Physics of Atomic Nuclei 65 (2002) 1403-1410
41) I.I. Gontchar, M. Morjean, S. Basnary// Nuclear dissipation from fission time// Europhys. Lett. 57 (2002) 355-361
40) R.D. Butt, M. Dasgupta, I.I. Gontchar, D. J. Hinde, A. Mukherjee, A. C. Berriman, C. R. Morton, J.O. Newton, and A.E. Stuchbery, J.P. Lestone //Effects of finite ground-state spin on fission fragment angular distributions following collisions with spherical or deformed nuclei// Phys. Rev. C 65 (2002) 044606 See Also Erratum Phys. Rev. C 65 (2002) 069904 (E) http://prc.aps.org/abstract/PRC/v65/i4/e044606
39) I.I. Gontchar, M. Dasgupta, D.J. Hinde, R.D. Butt, A. Mukherjee// Importance of geometrical corrections to fusion barrier calculations for deformed nuclei// Phys. Rev. C 65 (2002)034610 http://prc.aps.org/abstract/PRC/v65/i3/e034610
38) D.J. Hinde, A.C. Berriman, R.D. Butt, M. Dasgupta, I.I. Gontchar, C.R. Morton, A. Mukherjee, J.O. Newton// Role of entrance-channel dynamics in heavy element synthesis// J. Nuclear and Radiochemical Sciences 3 (2002) 1-7
37) A.E. Gettinger, I.I. Gontchar// Is the approximation of overdamping applicable in order to describe the dynamics of fission of excited nuclei?// J. Phys. G26 (2000)347-356
36) I.I. Gontchar, A.E. Gettinger, LI. Guryan, W. Wagner// Multidimensional dynamical-statistical model for describing the fission of excited nuclei// Physics of Atomic Nuclei 63 (2000) 1688-1708
35) P. Frobrich, I.I. Gontchar // Langevin description of fusion, deep-inelastic collisions and heavy-ion induced fission// Phys. Rep. 292 (1998) 131-237
34) I.I. Gontchar, A.E. Gettinger, R.S. Kurmanov, L.A. Litnevsky// The stochastic approach to the fission process -- a problem of the interpretation of the Langevin equation with a multiplicative noise// VI International school-seminar on heavy ion physics, Dubna, September 22-27, 1997, Russia. Proceedings, p.653-660
33) A.E. Gettinger, I.I. Gontchar// On the applicability of the overdamped approximation to the fission motion//VI International school-seminar on heavy ion physics, Dubna, September 22-27, 1997, Russia. Proceedings, p.664-666
32) L.A. Litnevsky, I.I. Gontchar// Analysis of the data using the different interpretations of the Langevin equations for the fission process//VI International school-seminar on heavy ion physics, Dubna, September 22-27, 1997, Russia. Proceedings, p.661-663
31) I.I. Gontchar, L.A. Litnevsky// Dependence of nuclear dissipation upon deformation or temperature: analysis of the data using a Langevin-Monte-Carlo approach// Z. Phys. A 359 (1997) 149-155
30) I.I. Gontchar, L.A. Litnevsky, P. Frobrich// A C code for combining a Langevin fission dynamics of hot nuclei with a statistical model including evaporation of light particles and giant dipole -quanta// Comp. Phys. Comm. 107 (1997) 223-245
29) I.I. Gontchar //Langevin fluctuation-dissipation dynamics of fission of excited atomic nuclei // Phys. Part. Nucl. 26 (1995) 932-1000
28) N.V. Eremin, G. Giardina, I.I. Gontchar//A strong isotopic effect in prescission charged particle multiplicities// Phys. Lett. B 353 (1995) 432-437
27) I.I. Gontchar//The Lifetime Distributions of Fission Events Predicted by the Combined Dynamical Statistical Model (CDSM) for Heavy-Ion Induced Nuclear Fission// Proceedings of the Int. Conf. "Low Energy Nuclear Dynamics", S-Petersburg, Russia, 18-22 April, 1995, p.288-290
26) I.I. Gontchar, L.A. Litnevsky //Energy Spectra of Neutrons and Charged Particles Emitted During the Fission Process// Proceedings of the Int. Conf. "Low Energy Nuclear Dynamics", S-Petersburg, Russia, 18-22 April, 1995, p.285-287
25) I.I. Gontchar, L.A. Litnevsky//Dependence of nuclear dissipation upon deformation or temperature: analysis of the data using a Langevin-Monte-Carlo approach// Proceedings of XIII. Meeting on Physics of Nuclear Fission in memory of Prof. G.N.Smirenkin, October 3-6, 1995, Institute of Physics and Power Engineering, Obninsk, Kaluga Region, Russia, p.175-182
24) I.I. Gontchar, P. Frobrich// Damping coefficient of the fission mode: analysis of experimental data with a combination of a dynamical and statistical model// Physics of Atomic Nuclei 57 (1994) 1249-1254
23) D. Hilscher, I.I. Gontchar, H. Rossner// Fission dynamics of hot nuclei and nuclear dissipation// Physics of Atomic Nuclei 57 (1994) 1255-1267
22) I.I. Gontchar, P. Frobrich//Dynamics of the thermal decay of a metastable system over a multiple-humped barrier// Nucl. Phys. A 575 (1994) 283-296
21) I.I. Gontchar, P. Frobrich// Fission rate over a multiple-humped barrier: Langevin approach// Proc. Fourth Int. School on Nucl. Phys. Kiev, Ukraine,Aug.29-Sept.7, 1994; Kiev, p.355-358
20) P. Frobrich, I.I. Gontchar// What are sensitive probes for nuclear friction in heavy-ion induced fission?// Nucl. Phys. A 563 (1993) 326-348
19) P. Frobrich, I.I. Gontchar, N.D. Mavlitov// Langevin fluctuation-dissipation dynamics of hot nuclei: prescission neutron multiplicities and fission probabilities// Nucl. Phys. A 556 (1993) 281-306
18) I.I. Gontchar, P. Frobrich// Nuclear fission: combining the dynamical Langevin equation with the statistical model// Nucl. Phys. A 551 (1993) 495-507
17) Yu.A. Lazarev, I.I. Gontchar, N.D. Mavlitov//Long-lifetime fission component and Langevin fluctuation-dissipation dynamics of heavy-ion induced nuclear fission// Phys. Rev. Lett. 70 (1993) 1220-1223 http://prc.aps.org/abstract/PRL/v70/i9/p1220_1
16) I.I. Gontchar, P. Frobrich, N.I. Pischasov// Consistent dynamical and statistical description of fission of hot nuclei // Phys. Rev. C 47 (1993) 2228-2235 http://prc.aps.org/abstract/PRC/v47/i5/p2228_1
15) P. Frobrich, I. Gontchar // Combining dynamical and statistical approach to the competition between fission and particle emission // Second Int. Conf. on Dynamical Aspects of Nuclear Fission, June 14-18, 1993, Smolenice, Slovakia, p. 182-197
14) I.I. Gontchar, P. Frobrich, Yu.A. Lazarev// Time distributions of fission events in heavy-ion induced nuclear fission// Second Int. Conf. on Dynamical Aspects of Nuclear Fission, June 14-18, 1993, Smolenice, Slovakia, p. 198-202
13) N.D. Mavlitov, P. Frobrich, I.I. Gontchar// Combining a Langevin description of heavy-ion induced fission including neutron evaporation with the statistical model// Z. Phys. A 342 (1992) 195-198
12) G.I. Kosenko, I.I. Gontchar, O.I. Serdyuk, N.I. Pischasov// Calculation of the moments of the fission-fragment energy distribution by the method of Langevin equations// Sov. J. Nucl. Phys. 55 (1992) 514-519
11) I.I. Gontchar, N.D. Mavlitov//Effect of the spin distribution of compound nuclei on the multiplicity of prefission neutrons in reactions with heavy ions// Sov. J. Nucl. Phys. 53 (1991) 86-91
10) I.I. Gontchar, G.I. Kosenko// Is the Kramers formula applicable for describing the decay of highly excited nuclear systems?// Sov. J. Nucl. Phys. 53 (1991) 86-91
09) G.D. Adeev, I.I. Gontchar, V. V. Pashkevich, O.I. Serdyuk// Relaxation times of collective modes in fission of excited nuclei // Sov. J. Nucl. Phys. 50 (1989) 774-779
08) G.D. Adeev, I.I. Gontchar, V.V. Pashkevich, N.I. Pischasov, O.I. Serdyuk// Diffusion model of formation of fission-fragment distributions// Sov. J. Part. Nucl 19 (1988) 529-598
07) O.I. Serdyuk, G.D. Adeev, I.I. Gontchar, V. V. Pashkevich, N.I. Pischasov// Mass-energy distribution of fission fragments in the diffusion model// Sov. J. Nucl. Phys. 46 (1987) 399-405
06) G.D. Adeev, I.I. Gontchar, L.A Marchenko, N.I. Pischasov// Dissipation-fluctuation dynamics of the formation of fission-fragment mass distributions/// Sov. J. Nucl. Phys. 43 (1986) 727-734
05) G.D. Adeev, I.I. Gontchar// The dynamical description of the mass distribution of fission fragments// Z. Phys. A 320 (1985) 451-457
04) G.D. Adeev, I.I. Gontchar, L.A. Marchenko// Fluctuation-dissipation dynamics of the formation of the charge distribution of fission fragments// Sov. J. Nucl. Phys. 42 (1985) 25-31
03) G.D. Adeev, I.I. Gontchar// A simplified two-dimensional diffusion model for calculating the fission-fragment kinetic-energy distribution// Z. Phys. A 322 (1985) 479-486
02) G.D. Adeev, I.I. Gontchar// Fluctuation-dissipation dynamics of the formation of the energy distribution of fission fragments// Sov. J. Nucl. Phys. 40 (1984) 553-560
01) G.D. Adeev, I.I. Gontchar// Dynamical description of the variances of the kinetic energy of fission fragments// Sov. J. Nucl. Phys. 37 (1983) 661-666