STANDARD TEMPERATURE AND PRESSURE PLASMAS


Ovidiu S. Stoican, PhD, experience in the following areas: plasma physics, electrodynamic traps, computational physics, nuclear quadrupole resonance (NQR), diode laser applications, instrumentation and applied electronics

RESEARCH ACTIVITIES

 Electrodynamic traps
Microparticles cloud confined along the longitudinal axis of the linear trap
 Plasma sources operating at atmospheric pressure and interaction plasma-electromagnetic field
The head of the plasma jet generator operating at atmospheric pressure during operation

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Electrical supply unit for cold plasma sources

Based on the principle described in "O. S. Stoican, Electrical Supply Circuit for a Cold Plasma Source at Atmospheric Pressure Based on a Voltage Multiplier, Polymers, 13, 2132 (2021)" an experimental model for a stand-alone system aimed to drive cold plasma sources has been developed.
Its operation is equivalent to two dc sources connected in parallel, used to initiate and sustain the electrical discharge, depending on its state.

The main features of the system are:
The whole design of the system are based on the usual components, electronic boards and materials, commercially available, being ready to be implemented as a product by an innovative start-up.
For details, please contact us.
Experimental model of the electrical supply unit - front panel


PUBLICATIONS
(selection)
 A. Journals
  1. O. S. Stoican, Electrical Supply Circuit for a Cold Plasma Source at Atmospheric Pressure Based on a Voltage Multiplier, Polymers, 13, 2132 (2021)
  2. D. B. Dreghici, B. Butoi, D. Predoi, S. L. Iconaru , O. Stoican, A. Groza, Chitosan-Hydroxyapatite Composite Layers Generated in Radio Frequency Magnetron Sputtering Discharge: From Plasma to Structural and Morphological Analysis of Layers, Polymers, 12, 3065 (2020)
  3. O. S. Stoican, High voltage pulses circuit for generating a plasma plume at atmospheric pressure, Romanian Reports in Physics, Vol. 71, No. 1, article no. 406 (2019)
  4. O. S. Stoican, Voltage Reversal in Series-connected Three 1.5V AAA Alkaline Batteries, Int. J. Electrochem. Sci., vol. 14, No. 1, pp. 897 - 904 (2019)
  5. O. S. Stoican, Study on the axial distribution of the stored microparticles in an electrodynamic trap by using software image processing, Rom. Journ. Phys, vol. 61, Nos. 3-4, pp. 536-542 (2016)
  6. O. S. Stoican, Experimental setup aimed to study the electrical impedance variations of a plasma column in a wide frequency range, Romanian Reports in Physics, vol. 66, no. 3, 746-753 (2014)
  7. G. Visan, O. S. Stoican, An experimental setup for the study of the particles stored in an electrodynamic trap, Rom. Journ. Phys.,Vol. 58, Nos. 1-2, pp. 171-180 (2013)
  8. O. S. Stoican, Studies on the Interaction Between an Acoustic Wave and Levitated Microparticles in Waves in Fluids and Solids, Ruben Pico Vila (Ed.), 2011, ISBN: 978-953-307-285-2, InTech
  9. O.S. Stoican, An atmospheric pressure plasma source driven by a train of monopolar high voltage pulses superimposed to a dc voltage, European Physical Journal-Applied Physics, 55, 30801 (2011)
  10. O. S. Stoican, Galvanic isolated voltage source using a single photodiode, Rev. Sci. Instrum. 81, 046102 (2010)
  11. O. S. Stoican, Study of RF Perturbations Due to a Hollow-Cathode Discharge, Rom. Journ. Phys., Vol. 55, Nos. 7-8, pp. 800-805 (2010)
  12. O. S. Stoican, Period shift of a discharge tube relaxation oscillator due to a weak microwave field, Japanese Journal of Applied Physics, 48, 070218 (2009)
  13. O. S. Stoican, Frequency shift of a relaxation oscillator due to an external electrode, Rom. Journ. Phys., Vol. 54, Nos. 3-4, pp. 385-390 (2009)
  14. O. S. Stoican, L. C. Dinca, G. Visan, S. Radan, Acoustic detection of the parametrical resonance effect for a one-component microplasma consisting of the charged microparticles stored in the electrodynamic trap, Journal of Optoelectronics and Advanced Materials, Vol. 10, No. 8, August 2008, pp. 1988 -1990 (2008)
  15. O. S. Stoican, NQR detection setup, Rom. Journ. Phys., Vol. 51, Nos. 1-2, pp. 311-315 (2006)
  16. V. Gheorghe, L. Giurgiu, O. S. Stoican, D. Cacicovschi, R. Molnar, B. Mihalcea, Ordered structures in a variable length a. c. trap, Acta Physica Polonica A, 93, 4, pp. 625-629 (1998)
  17. V. Florescu, S. Patrascu, O. S. Stoican, Systematic study of 1s - ns and 1s - nd two photon transitions of hydrogenlike atoms, Phys. Rev. A, 36, 5, pp. 2155-2166 (1987)
 B. Patents
 C. Patent applications under examination
 Current research projects  International cooperation
 Contact:
NATIONAL INSTITUTE FOR LASER, PLASMA AND RADIATION PHYSICS (INFLPR)
Plasma Physics and Nuclear Fusion Departament
email: ovidiu.stoican@inflpr.ro

2022


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