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Created: 2005
Updated: 28.7.2016

Biography
EMIL GEORGIEV NADJAKOV
(27.11.1929 – 27.03.1996)

Born: Emil Georgiev Nadjakov was born in Sofia (Bulgaria). He was son of Academician George Nadjakov.

Education:

Emil Nadjakov studied Faculty of Physics and Mathematics at the Sofia University (1947 – 1951) and graduated successfully in July 1951. His Ph.D. dissertation was made in the experimental physics chair (1956). He became a D.Sc. in March 27, 1979 and professor in October 14, 1980.

Scientific Research:

General Field: Experimental and theoretical nuclear physics.

Experimental: Academician Emil Nadjakov introduced X-ray spectroscopy and X-ray topography in Bulgaria. With new X-ray metodes he investigated structure of molecules and cristal dislocations. Isotopes of heavy nucleus were fund out and lifetimes of High-Spin nucleus were measured by him.

Theoretical: He included rotational bands on the theory of nuclei, roton operators for nuclear rotation, and new theory of rotational and vibrational excitations. He created quark model of nuclear plasma, models of boson and spinor interactions, and quantum mesurement theory.

Professional experience:

Emil Nadjakov joined to the Institute of Physics at the Bulgarian Academy of Sciences in 1956. His habilitation was in 1963. He leaded laboratory of "X-ray spectroscopy and X-ray structure analyses", called laboratory of "nuclear and X-ray structure investigations" later. In the Institute for Nuclear Research and Nuclear Energy he was head of the laboratory of " nuclear reactions". At the Faculty of Physics he was associate professor (1965-1980) and subdean (1970-1972). In 1980 he took up a professorship at the Sofia University.

Teaching activities:

Academician Emil Nadjakov lectured two courses, called "electromagnetical and optical phenomena" (1967 – 1981; 1990 – 1996) and "nuclear theoretical physics" (1967 – 1981) at the Sofia University.

Awards:

Emil Nadjakov received medal "Kiril and Methodi" degree first (1981) and "Sofia University 100 years" (1988). He became member of Bulgarian Academy of Sciences in June 6, 1995.

Joind Institute for Nuclear Research in Dubna (Russia) gave him first theoretical prize (1978) and second experimental prize (1993).

Publications:

E. Nadjakov, Achievements of Nuclear Physics in Bulgaria, Bulgarian Science and Technology Days, Copenhagen (1972) p. 1-21

E. Nadjakov, Realisations de la Physique Nuclleare en Bulgare, Journees de la Science et de la Technique Bulgare, Bruxelles (1972) p. 1-19

B. Bochev, R. Kalpakchieva, S. A. Karamian, T. Kutsarova, E. Nadjakova, Yu. Ts. Oganessian, Lifetime and side feeding measurements of nuclear yrast levels, Consolidated Progress Report for 1975 on Nuclear Date Activities in the NDS Service Area, January 1976, International Nuclear Data Committee, Vienna (1976) p. 54-56

B. Bochev, S. A. Karamian, T. Kutsarova, E. Nadjakov, Yu. Ts. Oganessian, The Feeding Times and Lifetimes of High-Spin Levels in Ytterbium Doubly eben Isotopes, JINR, Dubna, Е7-9626 (1976)

B. Bochev, S. A. Karamian, T. Kutsarova, E. Nadjakov, Yu. Ts. Oganessian, The Feeding Times and Lifetimes of High-Spin levels in Ytterbium Doubly Even Isotopes, Nuclear Physics A267 (1976) p. 344-358

B. Bochev, S. Iliev, R. Kalpakchieva, S. A. Karamian, T. Kutsarova, E. Nadjakov, Ts. Venkova, Feeding and Lifetimes of Yrast Levels in Hf Nuclei, JINR, Dubna, Е7-10180 (1976) p. 1-21

E. G. Nadjakov, R. M. Nojarov, A Resonance Model of Back- and Downbending in Nuclei, Bulg. J. Phys. t. 3 (1976) No 4, p. 352-367

E. Nadjakov, Quantum System Lifetimes and Measurement Perturbations, International Centre for Theoretical Physics, IC/77/45, Miramare-Trieste (1977) p. 1-20

I. Savatinova, E. Nadjakov, L. Mashev, Determination of Refractive Index Profiles in Diffused Optical Waveguides, Appl. Phys. v. 12 (1977) p. 293-296

E. Nadjakov, L. Kissiova, P. Andreev, Influence of Correlations on Intrinsic EL Moments in Nuclei, Bulg. J. Phys. v. 4 (1977) No 4, p. 393-398

E. Nadjakov, V. Kitipova, Non-Adiabatic Effects in Nuclear Quasirotational Bands, Bulg. J. Phys. v. 4 (1977) No 6, p. 610-617

B. Bochev, S. Iliev, R. Kalpakchieva, S. A. Karamian, T. Kutsarova, E. Nadjakov, Ts. Venkova, Feeding and Lifetimes of Yrast Levels in 166, 168, 170HF and 156, 160ER Nuclei, Consolidated Progress Report for 1976 on Nuclear Date Activities in the NDS Service Area, International Nuclear Data Committee, Vienna (1977) p. 35-37

B. Bochev, S. Iliev, R. Kalpakchieva, G. A. Karamian, T. Kutsarova, E. Nadjakov, Ts. Venkova, Study of the Population and Decay of High-Spin Levels in 156Er and 160Er Using the Reactions 120,124Sn (40Ar, 4n), Proceedings of the International Conference on Nuclear Structure Contributed Papers, Tokyo, September 5-10 (1977) p. 399

B. Bochev, S. Iliev, R. Kalpakchieva, S. A. Karamian, T. Kutsarova, E. Nadjakov, Ts. Venkova, Study of the Population and Decay of High-Spin Levels in 156Er and 160Er Usung the Reactions 120,124Sn (40Ar,4n), JINR, Dubna, Е7-10675, 1977, p. 1-31

D. Karadjov, I. N. Mikhailov, E. Nadjakov, J. Piperova, Theory of Coupled Rotational Bands in Nuclei, Nulcear Physics A305 (1978) p. 78-92

D. Karadjov, I. N. Mikhailov, E. Nadjakov, J. Piperova, Theory of Coupled Rotational Bands in Nuclei, Nuclear Physics, A305 (1978) p. 93-116

E. Nadjakov, R. Nojarov, G. Miankova, V. Antonova, Model of Coupled Bands in Even-Even Nuclei, JINR, Dubna, Е4-11831 (1978) p. 1-15

E. Nadjakov, V. Antonova, R. Nojarov, Microscopic Description of Coupled Bands Including a Superband, in Even-Even Nuclei, JINR, Dubna, Е4-11832 (1978) p. 1-19

E. G. Nadjakov, D. D. Genchev, On K-alpha1 and L-beta1 X-Ray Lines of Elements with an Incomplete 4d Shell in Compounds, Comptes Rendus de l'Academie Bulgare des Sciences, t. 32 (1979) No. 6, p. 745-748

E. G. Nadjakov, R. M. Nojarov, G. Z. Miankova, V. Antonova, Model of Coupled Bands in Even-Even Nuclei, Bulg. J. Phys, v. 6 (1979) No 4, p. 434-441

E. Nadjakov, R. Nojarov, V. Antonova, Phonons in the Coupled Rotational Bands Approach, Bulg. J. Phys, v. 6 (1979) No 6, p. 622-629

E. Nadjakov, Quantum System Lifetimes and Measurement Perturbations, Bulg. J. Phys. v. 7 (1980) No 1, p. 3-16

W. Andrejtscheff, E. Nadjakov, Ts. Venkova, Systematic Behavior of B(E2) Values in the Yrast Bands of Doubly Even Nuclei, Zeitschrift fur Physik A, Atoms and Nuclei, B. 296 (1980) p. 123-132

V. Vanagas, S. Alisauskas, R. Kalinauskas, E. Nadjakov, Basis States for the Rotational and Vibrational Limits of Nuclear, Bulg. J. Phys. v. 7 (1980) No 2, p. 168-174

R. Nojarov, E. Nadjakov, V. Antonova, High Spin Structure in a Coupled Bands Model, International Centre for Theoretical Physics, IC/80/30, Miramare-Trieste (1980) p. 1-31

E. Nadjakov, Boson Models of Transitional Nuclei, Proceedings of the 5-th International School on Nuclear and Neutron Physics and Nuclear Energy, 5-14 October 1981, Varna, Sofia (1982) p. 83-118

E. Nadjakov, Nuclear Structure at High Spin, Publishing House of the Bulgarian Academy of Sciences, Sofia, (1982)

E. Nadjakov, R. Nojarov, V. Antonova, Microscopic Determination of Band Interaction in 154Gd and 164Er, Physics Letters, v. 116B (1982) No 4, p. 207-211

R. Nojarov, E. Nadjakov, Band Coupling and Crossing in Nuclei, Nuclear Physics A397 (1983) p. 29-60

E. G. Nadjakov, Atomic Beam Collimation, JINR, Dubna, Е6-86-231 (1986) p. 1-16

E. G. Nadjakov, Laser Spectrometer Parameters, JINR, Dubna, Е6-86-232 (1986) p. 1-10

Yu. P. Gangrsky, I. Han Gyong, K. P. Marinova, B. N. Markov, E. G. Nadjakov, Tran Cong Tam, Low Amount Nuclide Registration by an Atomic Beam Laser Spectrometer, JINR, Dubna, Е6-86-233 (1986) p. 1-15

E. G. Nadjakov, I. N. Mikhailov, Interacting Multi-Boson Model, JINR, Dubna, Е4-86-510 (1986) p. 1-11

E. G. Nadjakov, I. N. Mikhailov, Interacting Multiboson model, J. Phys. G: Nuclear Physics, v. 13 (1987) p. 1221-1229

E. G. Nadjakov, I. N. Mikhailov, New Aspects oj the Interacting Boson Model, JINR, Dubna, Е4-87-366 (1987) p. 1-11

I. N. Mikhailov, E. G. Nadjakov, M. Aiche, Ch. Briancon, N. Schulz, V. Vanin, Dipole Octupole Correlations in a Boson Model and Evidence for Their Existence in Nuclei, JINR, Dubna, Е4-88-543 (1988) p. 1-10

I. N. Mikhailov, E. G. Nadjakov, M. Aiche, Ch. Briancon, N. Schulz, V. Vanin, Dipole-Octupole Correlations in a Boson Model and Evidence for Their Existence in Nuclei, Journal Physics G: Nuclear Particle Physics v. 15 (1988) L19-L24

E. G. Nadjakov, Interacting Multiboson, Fermion or Spinor Models, Proceedings of the International Conference on Selected Topics in Nuclear Structure, Dubna, (1989) p. 290-300

E. G. Nadjakov, Particle and Subparticle Quantum Models, Journal Physics G: Nuclear Particle Physics, v. 16 (1990) p. 1473-1481

E. G. Nadjakov, Matrix Diagonalisation on Personal Computers, JINR, Dubna, Е11-90-391 (1990) p. 1-15

E. G. Nadjakov, Particle and Subparticle Quantum Models, JINR, Dubna, Е4-90-62 (1990) p. 1-17

A. Anastassov, Yu. P. Gangrsky, B. K. Kul'djanov, K. Marinova, B. N. Markov, E. Nadjakov, S. G. Zemlyanoi, Hyperfine Splitting Constants of the a3F3 and z5G3 0 HfI Levels, JINR, Dubna, Е6-92-319 (1992) с. 1-6

A. Anastassov, Yu. P. Gangrsky, B. N. Markov, S. G. Zemlyanoi, K. P. Marinova, E. G. Nadjakov, B. K. Kul'djanov, Nuclear Structure by Laser Spectrodcopy, Proceedings of the XI International School on Nuclear Physics, Neutrin Physics and Nuclear Energy, Varna, Bulgaria, October 4-11 (1993) INRNE, Sofia, p. 112-134

E. G. Nadjakov, K. P. Marinova, Systematics of Nuclear Charge Rad II, Atomic Data and Nuclear Data Tables, v. 56 (1994) p. 133-157

References:

Р. Еников. 100 Години от рождението на академик Емил Стефанов Джаков. Информационен бюлетин на БАН (2008) бр. 4, с. 8-9

Светът на физиката (1996) кн. 1, с. 38

Списание на БАН (1996) кн. 4, с. 85

М. Борисов, Списание на БАН (1996) кн. 6, с. 75-76

М. Матеев, Предговор, Физика електромагнитни и оптични явления, Университетска библиотека 424, серия Университетска класика Емил Наджаков, Университетско издателство, София (2004) с. 11-13

Г. Камишева, Основоположници на теоретичната физика в БАН, Трудове на Балканската конференция на младите учени, 16-18 юни 2005.

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