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Home     Ukrainian Institutes Institute of Applied Physics, NASU

Institute of Applied Physics, NASU

General Information

The Institute of Applied Physics of the National Academy of Sciences of the Ukraine (IAP) was founded in December 1991. The Director and founder of the Institute is Volodymyr Storizhko, academician of the National Academy of Sciences of the Ukraine.

The main research areas are:

  • Quantum electrodynamics in strong fields;
  • Investigation of low-energy ion/electron beam interactions with matter;
  • Electrostatic accelerator design and construction;
  • Development of the accelerator based nuclear microprobe facility;
  • Microstructure research of the reactor materials and biological objects;
  • Development of scientific instruments and teaching aids.

Focus and Expertise

With reference to Material Sciences Research, the main areas are:

BIOPHYSICS RESEARCH

Fundamental studies:

  • Mass spectroscopy of biomolecular cluster formation.
  • Non-covalent complexes of biomolecules with drugs and other biologically active substances. Molecular mechanisms of interaction of biologically active substances with biomolecules - components of DNA, RNA, peptides.
  • Biomineralization, bone tissue structure and properties, studies of collagen hydration processes and water interaction with mineralized tissues.

Applied studies:

  • Development and characterization of biomaterials based on the chitosan-apatite composites.
  • Development of the hydroxyapatite coatings for metal implants.
  • Design of compact mass spectrometer for early diagnostics of intestinal infections.
  • Cryogrinding of biological materials, technology and applications.

MICROSTRUCTURE STUDIES OF REACTOR MATERIALS

The main area of research covers theoretical studies and numerical simulations of nonequilibrium microstructure transformations in alloys under irradiation. The investigations are carried out into finely dispersed alloys, structure transformations in condensed matter far from equilibrium, amorphous matter, and hierarchical defect structures in nonideal crystals.

Microstructure transformations are simulated using a GRID cluster and include simulations of space-time structures in irradiated alloys, temperature-concentration variations in crystal systems, studies of multifractal electron microscopy spectra, and defect structure simulations using molecular dynamics.

MICROANALYSIS APPLICATIONS TO ORE CHARACTERIZATION

Investigations are carried out into naturally occurring rare isotopes in pure form. Stable radioisotopes can be accumulated in pure form in the course of natural radioactive transformations by producing atoms with chemical properties different from those which undergo decomposition or constitute the initial compound. All possible instances were deduced. Search for and tests of the corresponding natural anomalies are under way. E.g. radiogenic Osmium-187 which is normally 1.64% of the sum total of the osmium isotopes and is produced in the p-decay of Re187 with T1/2=4.12* 1010.1870s was detected by the emission from radioactive 185Os produced in the 1870s(γ,2n)185Os reaction in an electron linac.

The nonradiogenic osmium was detected by the 190Os concentration measured by the emission from radioactive 191Os produced in the 1900s (n/γ)191Os reaction.

The crystallo-chemical factors were determined of the bonding strength of radiogenic osmium in the molybdenite structure.

Using microchemical osmium concentration, the nonradiogenic osmium was detected with an accuracy of 10-5%. In one of the deposits an unprecedented osmium-187 purity of 99.99% in molybdenite was found. Similar detection procedure applied to strontium-87 yielded purity of 99% and natural occurrence of 7%.

The use of precise gamma-spectrometry makes it possible to discover a wide occurrence of radioactive nonequilibrium ores in Ukrainian Shield deposits. The degree of nonequilibrium depends on the mineral composition of the ores. The most nonequilibrium uranium minerals found are uranyl silicate and filmy calcium uraninite,

Further investigations of this phenomenon would permit a better detection of uranium deposits by means of radiometry techniques.


Nuclear scanning
microprohe based on
the electrostatic
2MV accelerator.


Yoke


Doublet of magnetic
quadripole lenses


H source

Contact Details

Storizhko Volodymir Yu., Director, Acad. of NASU, Prof.
Address: 58, Petropavlivska St., 40000 Sumy, Ukraine
+38 0542 222794
E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Website: http://www.iap.sumy.org

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