468 (Continued) 
Director: A. Ya. Kipper, Academician (Estonian S.S.R.) (1958) 
Deputy Director: K. K. Rebane, Corresponding Academician (Estonian S.S.R.) 
(1961) 
Administrative Affiliation: Academy of Sciences, Estonian S.S.R. (1961) 
Selected Staff Members: 
H. P. Keres, Academician (Estonian S.S.R.), Head of Sector of 
Theoretical Physics and Mathematics 
Wo Wel Kalas 
F. D. Klement, Academician (Estonian S.S.R.), Head of Luminescence 
Laboratory 
N. N. Kristofel'! 
G. G Kuzmin, Corresponding Academician (Estonian S.S.R.), Head of 
Sector of Stellar Astronomy 
G. G. Liyd'ya 
Ch. B. Lushchik 
P. V. Myursepp 
i Ve Yaek 
Description: 
The principal work at this institute is concerned with the theory 
of luminescence. Rebane, Yaek, Lushchik, and others have investigated the 
effects of pressure temperature, intensity, etc., on emitted radiation. 
Other fields of interest at the Institute include theoretical work on tran- 
sition probabilities in crystals and molecules, structural mechanics, physics, 
and particle interactions and decay, as well as experimental and develop- 
mental work on satellite-tracking devices. 
The Institute publishes a Trudy whose sections are published as 
separate volumes. Two of the sections are titled, “Research in Atmospheric 
Physics" and "Research in Luminescence”. 
The research equipment available to the Institute's staff includes 
an actinometric station, which was erected for use during the International 
Geophysical Year, and the Latvian IRT-2000 nuclear reactor at Salapils, 
which is shared by several research organizations. 
h69 
Name: Institute of Physics and Geophysics 
(Institut fiziki i geofiziki) 
Address: Ashkhabad 
Director: A. A. Berdyyev (1958) 
Deputy Director: -- 
