Ivars TALE
Professor
Ivars Tale Head of the Department of Crystal Physics Institute of Solid State Physics University of Latvia Kengaraga iela 8 Riga, LV 1063 Latvia Phone: +371 7 260639 |
Interests:
- Wide-gap solid state physics
- Radiation energy storage and read-out processes in solids
- Physics of thin isolator and semiconductor films
- Radiation memory and optoelectronics material science
Languages: German, English, Russian, Latvian
Education
- University of Latvia (Faculty of Physics and Mathematics), 1959
- Dr.phys. (Candidate of Science in former USSR, Ph.D. in Western countries), University of Latvia, 1974
- in Physics and Mathematics, Academy of Sciences of Latvia, 1982
- Dr. habil. phys. (Doctor of Science in former USSR), University of Latvia, 1982
- Professor of solid state physics, Supreme Attestation Comission of the former USSR system, 1987
Experience
University of Latvia:
- Researcher, Laboratory of Semiconductor Physics, 1959 - 1971
- Head, Scientific group, Laboratory of Semiconductor Physics, 1971 - 1978
- Head, Department of Crystal Physics, Institute of Solid State Physics, 1979-
- Professor of solid state physics, Faculty of physics and mathematics, 1991-
Honours
- Corresponding Member, Latvian Academy of Sciences, 1993-1996
- Full Member, Latvian Academy of Sciences, 1996
Professional Activities and Memberships:
- Chairman, Promotion and Habilitation Council for Physics, University of Latvia, 1991-
- Member, Latvian Council of Science Expert Coommission for Physics, Mathematics and Astronomy
- Member, Physical Society of Russia, 1990
- Member (President 1992 - 1994), Physical Society of Latvia,
- Member, Latvian Union of Scientists, 1989
- Visiting scientist, Institute of Physics, Charles University, Prague, Czechoslovakia, 1974, 1978, 1983, 1986
- Visiting scientist, Department Physics University Rostock, FRG (inc. former DDR) , 1973, 1981, 1985, 1995, 1996, 1997
- Visiting Scientist, University of Prama, Italy, 1988
- Visiting Scientist, University GH Paderborn, Germany, 1993, 1994
- Visiting professor, Institute of Physics, University Sonora, Mexico, 1994-1995
Lectures:
A series of guest lectures at the universities and scientific centres in CSSR (1974, 1978, 1983, 1986);; Germany (1973, 1981, 1985, 1995, 1996, 1997)
Courses:
- Solid state physics (for BS, MS), Technology of experiment in physics (for BS), Thermal physics (MS), University of Latvia
- Physics of ionic crystals, Solid state radiation physics PhD students in solid state physics, University of LatviaI
- Director of bachelor studies: specialization "Information technologies in physics"
Recent/Representative
Publications:
Tale I., Kulis P., Rogulis U., Trokss
J., Veispals A., Barboza-Flores M. Color centers in LiBaF3.
- J. Luminescence, 1997, 72-74, p.722-723.
Springis M., Tale V., Tale I. Nature of
the blue luminescence bands in PbWO4. - J. Luminescence, 1997,
72-74, p.784-785.
Tale I. and Rudlof G. Advanced trap
spectroscopy in a-Al2O3 by TSL and TSEE. Proceedings of the 12-th
Internat. Symposium 12EEEA97 (in
press)
Kulis P., Springis M. and Tale I. The thermal
quenching of the F-centre luminescence. Radiation Measurements,
1997 (in press).
Rogulis U., Trokss J., Tale I. and Nagornaya
V. EPR of molybdenum-related defect in CdWO4 crystals. Radiation
Measurements, 1997 (in press).
Springis M., Kulis P. and Tale I. Polarised
blue luminescence in PbWO4 and CaWO4 crystals under polarised
UV-excitation. Radiation Measurements, 1997 (in press).
Tale I., Springis M., Kulis P., Rogulis U.,
Trokss J., Veispals A., and Fitting H.-J. Radiation defects and
processes in LiBaF3 crystals. Radiation Measurements, 1997 (in
press).
Visocekas R., Tale V., Zink A. and Tale I.
Trap spectrscopy and tunnelling luminescence in feldspars.
Radiation Measurements, 1997 (in press).
Rogulis U., Troksh J., Veispals A., Kulios
P., Springis M., Tale I. and Fitting H.-J., Degradation features
of BaF2 scintillators under radiation and magnetic fields. -
Phys. Stat. Sol. (a), 1996, 156, p.515-522.
Visocekas R., Tale V., Zink A., Spooner N.A.
and Tale I. Trap Spectroscopy and TSL in Feldspars, Radiat.
Protection. Dosim., vol.66, pp.391-4, 1996.
Tale I., Rudlof G. and Tale V. Glow Rate
Technique for Spectroscopy of Complex Thermostimulated Relaxation
Processes, Radiat. Protection. Dosim., vol.65, pp.33-6, 1996.
Springis M, Kulis P., Veispals A., Tale V. and
Tale I. Origin of the Dosimetric 430K TL Peak in the
Thermochemically Reduced a-Al2O3, Radiat. Protection. Dosim.,
vol.65, pp. 231-4,1996.
Tale I., Piters T.M., Barboza-Flores M.,
Perez-Salas R. and Springis M. Optical Properties of Complex
Anion Vacancy Centers and Photoexcitted Electronic Processes in
Anion Deficient a-Al2O3, Radiat. Protection. Dosim., 1996,
p.231-5.
Kotomin E.A. Stasahns, A., Kantorovich L.N.,
Lifshitz A.I., Popov A., Tale I. - Calculations of the geometry
and optical properties of FMg and dimer (F2 -type) centers in
corundum crystals, Phys Rev., 1995,vol. B51,No14,pp.8770-78 .
Rogulis U.,Tale I., Hangleiter T. and Spaeth
J.-M., Photostimulation process in the x-ray storage phosphor
KBr:In, J.Phys.Condens.Matter.1995,vol 7, pp.3129-3137.
Tale V., Tale I. and Nagornaya L.L.
Thermoactivated Spectroscopy of Hetrovalent Impurity Traps in
CdWO4, Radiat. Effects Defects Sol, 1995, vol. 134, pp.477-480.
Springis M., Kulis P. and Tale I. Point
defects related to 260K tThermostimulated Luminescence in
a-Al2O3, Radiat. Effects Defects Sol, 1995, vol. 134,
pp.481-4.
Rogulis U., Trokss J., Veispals A., Tale I.,
Kulis P. and Springis M. ODMR of Cd Impurity Centers in
g-Irradiated BaF2 Crystals, Radiat. Effects Defects Sol, 1995,
vol. 135, pp.361 - 5.
Rogulis U., Spaeth J.-M., Tale I. and Ruzha E.
ODEPR of Indium Colour Centers in the X-Irradiated Storage
Phosphor KBr:In, Radiat. Effects Defects Sol, 1995, vol. 134,
pp.471 - 5.
Jacobs P.W.M., Kotomin E.A., Stashans A and Tale I. Theoretical
simulations of hole centres in corundum crystals, Modelling
Simul. Mater. Sci. Eng. 1994, vol.2, p.109-117
I.Tale, V.Tale, P.Kulis. The effect of ionic
movementn on TSL in TLD LiF- Mg, Ti. - Radiation Protection
Dosimetry, 1993, vol. 47, No 1/4, pp.107-110.
Tale I. Thermostimulated Processes in
Statically and Dynamically Disordered Luminescent Solids. - Nucl.
Tracks Radiat. Meas., 1993, V.21, No.1, p. 65-71.
Jacobs P.W.M., Kotomin E.A., Stashans A. and
Tale I.A. Mechanism of self-trapped hole motion in corundum
crystals. Philosopical Mag. B, 1993, vol.67, No.4, p.557-567
Jacobs P.W.M., Kotomin E.A., Stashans A.,
Stefanovich E.V. and Tale I. Quantum chemical simulations
of hole self-trapping in corundum. - J.Phys.: Condens. Matter
1992, v.4, pp. 7531-7544.
Jacobs P.W.M., Kotomin E.A., Stashans A., Tale
I. Mechanism of Self-Trapped Hole Motion in Corundum Crystals.
-Phil.Mag. B, 1992 ,V.67, No.4, 557-67.
Tale I. Thermostimulated Processes in
Dynamically Disordered Ionic Crystals. - Radiat Effects and
defects in Solids, 1991, Vols. 119-121, pp.99-104.
"Models of processes in wide- gap solids with defects" (L.Kantorovich, E.Kotomin, V.Kuzovkov, I.Tale, A.Shluger, Yu.Zakis) Zinatne Publishing House: Riga, 1991, 320 p.
Research Projects:
Last update
04.01.1998