Projects / Programmes
Jedrska kvadropolna resonanca in šibka magnetna polja (Slovene)
January 1, 1999
- December 31, 2003
Code |
Science |
Field |
Subfield |
1.02.00 |
Natural sciences and mathematics |
Physics |
|
2.06.00 |
Engineering sciences and technologies |
Systems and cybernetics |
|
Code |
Science |
Field |
P180 |
Natural sciences and mathematics |
Metrology, physical instrumentation |
P250 |
Natural sciences and mathematics |
Condensed matter: structure, thermal and mechanical properties, crystallography, phase equilibria |
P260 |
Natural sciences and mathematics |
Condensed matter: electronic structure, electrical, magnetic and optical properties, supraconductors, magnetic resonance, relaxation, spectroscopy |
B130 |
Biomedical sciences |
Physiological biophysics |
B140 |
Biomedical sciences |
Clinical physics, radiology, tomography, medical instrumentation |
Researchers (7)
Organisations (1)
Abstract
The planned research is an expansion of our previous investigations. It can be divided into three groups:
a) Magnetic-resonance-spectroscopic methods in condensed matter with a special interest in phase transitions. In the last period pure NQR, our established research method for the study of local electric environment of the probe nucleus together with the lattice dynamics, is complemented by several techniques implicating extremely sensitive magnetic field sensor - SQUID. Using the new tool our research is expanded to the magnetic properties of new organic magnets and molecular magnets and their phase transitions at very low temperatures. The sensor has been successfully tested for the study of nuclear magnetization and our investigations will advance in that direction too.
b) SQUID sensors enabled investigations of electrophysiologic processes in the living matter. The smallest electric current causes magnetic field, which can be noninvasively detected with a sensor of sufficient sensitivity. Such experimental data complement the existent comprehension of some process often obtained from the invasive measurements of electric potential. With this kind of research of simple, initially only single cell living systems (chara corallina), we were the first who have shown that biomagnetic measurements are possible in plant cells as well as supplementary electrophysiological measurements. On the other side, we contribute to the recognition of the biomagnetic measurements in the clinical laboratories of cardiac and brain research. Our work is done principally on experimental data analysis, model studies and specialized computer software development.
c) SQUID magnetometers are superconductive devices, which operate at low temperatures. For classical superconductors typical operating temperature is 4 K whereas a high temperature SQUID operates at 77 K and even higher. Our attendant cryotechnic practice developed a useful application. A variety of small cryosystems have been made, contacts with industry established, and we hope for a fruitful cooperation in future when we expect small cryosystems to be frequently hybridized into new cryoelectronic components.
Most important scientific results
Final report
Most important socioeconomically and culturally relevant results
Final report