Simulation of Electrophysical Processes in Pulse-Periodic Tubular Sources of Powerful Infrared Radiation with Sapphire Shells

In this research we formulate a mathematical model of the discharge in a mixture of Cs--Hg--Xe, with double shells of sapphire as a part of an external electric LCR circuit with a transistor wrench and a duty arc. The model takes into account nonstationary processes in plasma, radiation transfer in the lines and continuous spectrum in the discharge and shells. Within the research we focus on some features of current pulses of a complex frequency structure passing through a plasma column at practically constant voltage on the discharge gap under conditions of a sudden voltage break at the end of the pulse. The study shows how the temperature field in plasma varies in time, as well as pressure and electrical resistance during the pulse and current pause. We pay much attention to the influence of transients on stability of the radiation source. Findings of the research allow us to recommend a computational experiment as an important method for designing radiation sources to determine the part of cesium and mercury doses introduced into the bulb of the radiation source, which directly participates in plasma formation in the discharge gap. In this case, it becomes possible to give a correct interpretation of the available experimental data by the electrical and spectral characteristics of the instruments

References

[1] Eltsin S.N., Zhukov A.P., Kashin V.M., Ryutin V.B. Otsenka effektivnosti perenosnykh zenitnykh raketnykh kompleksov [Efficiency estimation of man-portable air-defense systems]. Sankt-Petersburg, Izdatelstvo Baltyiskogo GTU Publ., 2007. 236 p.

[2] Shcherbinin R. Homing heads of advanced foreign guided missiles and air bomb. Zarubezhnoe voennoe obozrenie, 2009, no. 4, pp. 64–68 (in Russ.).

[3] Alekseev P., Nazarov A. Сurrent state and development trends for man-portable air-defense systems in foreign countries. Zarubezhnoe voennoe obozrenie, 2005, no. 3, pp. 35–40 (in Russ.).

[4] Shcherbinin R. Aircraft self-defense systems from man-portable air-defense system. Zarubezhnoe voennoe obozrenie, 2005, no. 12, pp. 37–42 (in Russ.).

[5] Shcherbak N. Countermeasures for ship-to-air guided weapons with infra-red guidance. Sovremennye bortovye sredstva. Elektronika: Nauka, Tekhnologiya, Biznes [Electronics: Science, Technology, Business], 2000, no. 5, pp. 52–55 (in Russ.).

[6] Zubov A. MANTA aircraft defense system from man-portable air-defense systems. Zarubezhnoe voennoe obozrenie, 2012, no. 1, pp. 63–67 (in Russ.).

[7] Olgin S. Problems of optoelectronic countermeasures. Zarubezhnoe voennoe obozrenie, 2002, no. 9, pp. 35–41 (in Russ.).

[8] Gradov V.M., Gavrish S.V. Mathematical modeling of selective emitting noneqilibrium plasma in complex optical systems. Light & Engineering, 1997, vol. 5, no. 3, pp. 16–18.

[9] Gavrish S.V., Gradov V.M., Kuznetsova A.V., Terentyev Yu.I. Mathematical modelling and research of pulse IR discharge lamps. Svetotekhnika, 2008, no. 5, pp. 14–18 (in Russ.).

[10] Gradov V.M., Shcherbakov A.A., Yakovlev A.V. Optical and electrophysical characteristics of arc discharges in alkali-metal vapors. High Temperature, 1983, vol. 21, no. 5, pp. 647–653.

[11] Gavrish S.V., Gradov V.M., Terentyev Yu.I. Construction and working features of lamps with sapphire shell. Svetotekhnika, 2008, no. 2, pp. 12–18 (in Russ.).

[12] Gradov V.M. Razrabotka metodov rascheta i issledovanie radiatsionnykh protsessov v sistemakh s razryadnymi istochnikami selektivnogo izlucheniya: Diss. dok. tekh. nauk [Development of calculation and research methods for radiative processes in systems with bit sources of selective radiation. Doc. tech. sci. diss.]. Moscow, Bauman MSTU Publ., 2002. 323 p.

[13] Baksht F.G., Lapshin V.F. Radiative energy transfer in axial-symmetric LTE plasma in conditions of pulse high pressure cesium discharge. Uspekhi prikladnoy fiziki [Advances in Applied Physics], 2013, vol. 1, no. 2, pp. 183–188 (in Russ.).

[14] Zeldovich Ya.B., Rayzer Yu.P. Fizika udarnykh voln i vysokotemperaturnykh gidrodinamicheskikh yavleniy [Physics of shock waves and high-temperature hydrodynamic phenomena]. Moscow, Fizmatlit Publ., 2008. 656 p.

[15] Mitchner M., Kruger Ch.H. Partially ionized gases. New York, Wiley, 1973. 518 p.

[16] Zhdanov V.M. Protsessy perenosa v mnogokomponentnoy plazme [Transport processes in multicomponent plasma]. Moscow, Fizmatlit Publ., 2009. 280 p.

[17] Rekin A.D. Radiative transfer equations in Shuster — Schwarzschild approximation for problems with spherical and cylindrical symmetry. TVT, 1978, vol. 16, no. 4, pp. 811–818 (in Russ.).

[18] Lingart Yu.K., Petrov V.A., Tikhonova N.A. Optical-properties of leucosapphire at high-temperatures. I. Translucent region. High Temperature, 1982, vol. 20, no. 5, pp. 706–713.

[19] Gradov V.M., Mak A.A., Shcherbakov A.A. Self-consistent calculation of laser pump system: mathematical model of the pump system with non-uniform temperature field in lamp discharge. Optika i spektroskopiya, 1984, vol. 56, no. 3, pp. 490–496 (in Russ.).

[20] Gradov V.M., Shcherbakov A.A. Calculation of the electrical and physical characteristics of arcs in krypton and xenon. High Temperature, 1979, vol. 17, no. 6, pp. 958–963.

[21] Surzhikov S.T. Opticheskie svoystva gazov i plazmy [Optical properties of gases and plasma]. Moscow, Bauman MSTU Publ., 2004. 576 p.

[22] Kalitkin N.N. Chislennye metody [Numerical methods]. Sankt-Petersburg, BKhV-Peterburg Publ., 2011. 592 p.