Title :
About biological and chemical effect of dense low temperature oxygen-hydrogen plasma
Author :
Goryachev, V.L. ; Rutberg, Pf.G. ; Ufimtsev, A.A. ; Pfedyokovich, V.N.
Author_Institution :
Inst. of Problems of Electrophys., St. Petersburg, Russia
Abstract :
Summary form only given. Plasma is created by a pulse-periodical discharge in water (U/sub 0/=30-40 kV, I/sub 0/=20-30 A, /spl tau/=20-30 /spl mu/s, f=50-100 Hz). Specific discharge energy E=200 J/sm/sup 3/, specific discharge power W=10 MW/sm/sup 3/, density of atoms: 10/sup 21/-10/sup 22/sm/sup -3/, 15-20/spl times/10/sup 3/K, pressure: 10-60 Mpa. The dynamics of plasma canal development is investigated theoretically and experimentally (speed shooting). Pressure and temperature are measured. Data on bactericidal effect of the discharge (bacterium survival) and hydrogen peroxide generation are represented. Calculation model of H/sub 2/O/sub 2/ generation by ultra-violet radiation is built upon the basis of the data on water absorption of plasma ultra-violet spectrum radiation and dissolved H/sub 2/O/sub 2/ in it. The results of calculations are satisfactory conform with the experiment. Obtained data are used for explanation of biological and chemical effects of pulse discharges in water.
Keywords :
biological effects of ultraviolet radiation; discharges (electric); hydrogen compounds; photochemistry; plasma applications; plasma temperature; water; 10 to 60 MPa; 20 to 30 A; 20 to 30 mus; 30 to 40 kV; 50 to 100 Hz; H/sub 2/O; H/sub 2/O/sub 2/; H/sub 2/O/sub 2/ generation; bactericidal effect; bacterium survival; biological effect; chemical effect; dense low temperature oxygen-hydrogen plasma; hydrogen peroxide generation; plasma UV spectrum; plasma canal development; pressure; pulse discharges; pulse-periodical discharge; temperature; ultra-violet radiation; water; water absorption; Absorption; Atomic measurements; Chemicals; Irrigation; Plasma chemistry; Plasma density; Plasma measurements; Plasma temperature; Pressure measurement; Temperature measurement;
Conference_Titel :
Plasma Science, 1997. IEEE Conference Record - Abstracts., 1997 IEEE International Conference on
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-3990-8
DOI :
10.1109/PLASMA.1997.605096
