3, 2013 .

Electro physical model of dose effects in MOS transistors

Yu.N. Barmakov, V.I. Butin, A.V. Butina

The method of creation of electro physical models of MOS transistors is explained and the new method of extraction of their parameters is given. Offered approach allows to predict the shift of threshold voltage and change of transfer characteristic steepness of n-channel MOS devices with induced channel for radiation intensity differing from implemented at tests on simulating installations.
Keywords: model, simulation, CMOS, MOS transistors, ionizing radiation, radiation effects.
The functional evaluation method of equipment compliance to requirements of failures caused by single nuclear particles

S.A. Sobolev

The functional approach to estimation and support of fault-tolerance of space equipment at influence of single nuclear particles, taking into account the circuitry, structural and functional characteristics of equipment is considered. Examples of its implementation are given.
Keywords: spacecraft, onboard equipment, fault-tolerance, single radiation effect, latch-up, criticality analysis.
 ELDRS effect in home produced electronic component base and methods of its detection

T.N. Kaskov, P.V. Rubanov, M.I. Okuntsov, S.A. Avdyushkin, I.A. Maksimov, V.V. Ivanov

The resistance of home produced electronic components made on bipolar technology at influence of low-intensive ionizing radiation of different dose rate for development of accelerated tests technique is estimated.
Keywords: tests, resistance, electronic component base, technique.
Experience of use of relaxation equation for estimation of dependence of levels of electronics threshold failures at pulse ionizing radiation from radiation pulse shape

V.S. Figurov

Experience of use of relaxation equation at estimation of dependence of levels of electronics threshold failures at influence of pulse ionizing radiation from radiation pulses form is generalized. Some features and properties of this equation are considered. Need of an assessment of relative efficiency of radiations of simulators used by compilation of this equation on test results on these installations is shown. Living conditions of the solution of relaxation equation are defined. Conditions are considered, at which the prior tabulation of solutions of this equation is probably.
Keywords: relaxation equation, pulse ionizing radiation, simulators.
Research of influence of «sagging» and delay in supply of latch-up excitation levels of operational amplifier AD283AN at pulse ionizing radiation

V.S. Figurov, V.V. Baykov, V.V. Shelkovnikov

The latch-up excitation levels of chip AD283AN (operational amplifier) at pulse ionizing radiation of RIUS-5 installation with simulation of «deep sagging» (to zero) and with delay in chip supply relatively a radiation pulse are experimental estimated. It is shown that «deep sagging» in supply and its time delay for 18 microseconds lead to some increase of latch-up excitation levels, but don\´t result in absence of this excitation. The influence of build-up time on latch-up excitation levels at chip supply is additionally estimated.
Keywords: «sagging» and delay in supply, latch-up excitation levels, pulse ionizing radiation, operational amplifier AD283AN, installation RIUS-5.
The experimental estimation of single events in secondary power source of power amplifier unit with switch of on-board transponder of augmentation and monitoring system at influence of high-energy protons on powerful field transistors IRFY 340C within secondary power source

B.M. Gorin, V.Yu. Murzin, S.B. Seleznev, D.A. Solodovnikov

The influence of secondary proton beam with energy of 920 MeV of accelerating and accumulative complex TVN ITEP on powerful field transistors IRFY 340C as a part of secondary power source of power amplifier unit with switch of on-board radio transponder of augmentation and monitoring system of small geostationary spacecrafts «LUCH-5A» and «LUCH-5B» are resulted. Radiation of transistors by flux of 6,1·1011 proton/cm2 at absorbed dose 1,8·104 rad didn\´t lead to failures or change of secondary power source parameters. Test results showed that influence of high-energy protons and heavy charged particles on IRFY 340C transistors won\´t break functioning of secondary power source of power amplifier unit with switch of on-board radio transponder of augmentation and monitoring system during active shelf life of 10 years.
Keywords: single events, field transistor, secondary power source, spacecraft, high-energy protons, heavy charged particles.
Operability of electronic memory of onboard equipment of spacecraft «Meteor-M» at influence of low-intensive proton and electron space radiations simulated by gamma radiation of installation with isotope source Co-60

B.M. Gorin, G.A. Erohin, A.N. Ershov, E.N. Kosov, V.Yu. Murzin, Yu.A. Nesterkin, S.B. Seleznev

The influence of low-intensive gamma radiation of installation with isotope source 60 on electronic memory device of onboard equipment of spacecraft «Meteor-M» is resulted. Failures when reading information (probability of error > E-05) happened since absorbed by device elements dose 23,8 krad. The further increase of gamma radiation influencing the device led to error probability growth, despite intermitting of failures. The hard failure of electronic memory device (probability of error > E-03) is at absorbed by elements dose 31,8 krad. Cause of failure of electronic memory device is failure of flash-memory K9F2G08U0M.
Keywords: spacecraft, onboard equipment, low-intensive proton and electron radiations, electronic memory device, absorbed dose.
To simulation of weight loss of materials of spacecraft external surfaces on geostationary orbit

R.H. Hasanshin, V.I. Kostyuk, L.S. Novikov

Results of experimental researches of influence of intensity and fluence of electron and proton radiation and complex influence of space factors (vacuum, electron, proton and electromagnetic radiations) on weight loss of model polymer composite material are presented. On the example of this material is set the existence of threshold values as for electron and proton fluences at flux density of 1011 cm-2·c-1, and for flows density at fixed values of these particles fluences, equal 1015 cm-2 and 5·1014 cm-2, and the threshold level of complex influence also is defined. It is shown that exceeding of threshold values of radiation modes leads to that thermostimulated weight loss of irradiated samples becomes less, than at sample of initial material.
Keywords: spacecraft, weight loss of material, own external atmosphere, geostationary orbit.
About influence of space ionizing radiation on deposition of own atmosphere products on protective glasses of solar batteries

R.H. Hasanshin, V.I. Kostyuk, I.B. Vintaykin, A.V. Kosogorov

Results of laboratory simulation of ionizing radiation influence and accumulation of products of own external atmosphere on surface of protective glass of solar battery on far-orbit spacecraft are presented.
Keywords: ionizing radiation, spacecraft, own external atmosphere, solar battery.
Comparing of calculation programs of absorbed doses

E.O. Pershina, S.A. Sobolev, V.N. Aleksandrov

Results of comparing of different programs for calculation of local absorbed doses in instrument are presented.
Keywords: program, calculation of absorbed doses, geometrical model of equipment, Monte-Carlo method.
Noise-immunity software and hardware complex for radiation resistance testing of electronic component base in dynamic mode

A.V. Rodigin, A.V. Teterevkov, S.L. Elyash

The software and hardware complex for electronic component base testing on small-size pulse accelerators ARSA is developed. The specific features of complex are: self-contained power supply, system for dynamical functional testing of sample, high-level noise immunity, fiber optical isolation, automated calibration.
Keywords: pulse X-ray radiation, radiation resistance of electronic component base, functional testing, scintillator, optical fiber.
The device for prompt measuring of electron maximum energy

A.L. Yuryev, T.V. Loyko, S.L. Elyash, S.P. Puhov

The compact device for prompt estimation of electron maximum energy is developed.  As detectors of electrons the color film indicators ZVID-3 and ZVID-01-1 were used.  The results of experiments on accelerator ARSA are compared with measurements on semicircular magnetic spectrometer.  The difference in measured maximum energies of electrons didn\´t exceed 8 %.
Keywords: accelerator, maximum electron energy, color film indicator.
The experimental estimation of relative efficiency of photon radiation of installations RIUS-5 and GU-200

V.S. Figurov, V.V. Baykov, V.V. Shelkovnikov,  A.V. Stulov

The method of experimental estimation of relative efficiency of photon radiation of pulse simulating installation RIUS-5 in relation to radiation of static simulating installation GU-200 is fulfilled, which isn\´t depending on the pulse waveform and its instability. Experimentally coefficients of relative efficiency of radiation of installation RIUS-5 in relation to radiation of installation GU-200 for diodes 2D213A and SF38 are defined. The relative efficiency was determined as the relation of specific integrated responses of diodes by ionization current on pulses of installation RIUS-5 and quasimomentums of installation GU-200 (duration ~20 sec). The methodology of the analysis and processing of experimental data is in details described.
Keywords: simulating installation, RIUS-5, GU-200, relative efficiency, photon radiation.
Research of influence of microwave radiation of GREMI installation on electronics housing prototype

N.V. Kupyrin, V.B. Bratchikov, A.O. Vasilenko, A.I. Vedernikov, K.A. Gagarinov, N.E. Zhiravova

Experiments on research of penetration of microwave radiation through the standard multipin connector of electronics housing prototype with the communication lines (bundles) are resulted. It is shown that the main engine of high-frequency signal passing in prototype volume is the passing through connector insulator, and the signal share from induced electromotive force on communication line is minimum.
Keywords: microwave radiation, research, prototype.
Results of comparative estimation of influence of microwave electromagnetic field on the screened radio-electronic equipment

P.Ya. Kundyshev, V.I. Butin

The published experimental data about determination of the screening characteristic of closed electroconductive jackets, and also responses of the wire circuits located in jacket at influence of microwave electromagnetic field is compared with results of analytical calculation estimate and the results of FEKO software simulation.
Keywords: electromagnetic screening, radio-electronic equipment, jacket, wave mode, resonance frequency, induced current, simulation, FEKO.
Research of thermomechanical effects in electronic devices at pulse X-ray radiation

A.V. Makarenko

Possibilities of the software used for estimation of electronic devices resistance at influence of pulse X-ray radiation are considered. Methodical aspects of energy release in sensitive volumes of electronic devices are explained. The results of radiation simulation, received taking into account gradient nature of energy release and without this phenomenon are comparative analyzed. On the basis of received data are made joint heat and strength prediction.
Keywords: thermomechanical effects, pulse X-ray radiation, gradient energy release, Monte-Carlo method.
Use of hydro wave method for cleaning of aqueous solutions

V.S. Afanasyev, A.V. Egorov, Yu.Yu. Sergeev, B.M. Vankov

The experimental results of hydrodynamic influence for cleaning of aqueous solutions by the powerful acoustic waves excited by mechanical systems in closed hermetic hydraulic circuit are presented. The installations are created which can solve problems of cleaning of industrial effluents, solutions of reaction masses, liquid radioactive waste at the level unattainable by use of traditional methods, applying reagent filters, ion exchange resin.
Keywords: hydrodynamic influence, liquid radioactive waste, reaction mass, isotopes of elements, hydro wave technology, cavitation liquid treatment.