Российский фонд
фундаментальных
исследований

Физический факультет
МГУ им. М.В.Ломоносова
 

B

Bagaudinov K.G.

 

Andriyanov Yu.V., Andriyanova O.N., Bagaudinov K.G., Garilevich B.A., Maksimov D.V. «Three-beam generator of acoustic shock-wave pulses» Приборы и техника эксперимента, 40, № 2, с. 123-125 (1997)

A three-beam generator of shock-wave acoustic pulses is described. The generator consists of three plane radiators of electromagnetic type with acoustic focusing lenses. The radiators are located on a general base symmetrically relative to the generator axis and so, thus the axes of acoustic lenses intersect in one point being the geometric focus for each lens. Measurement results of the pressure amplitude distribution of a shock-wave acoustic pulse in the zone of three beams intersection are presented. It is shown that the pressure distribution has plateau-like form. The generator is intended for crushing the kidney and bile gall-stones.

Приборы и техника эксперимента, 40, № 2, с. 123-125 (1997) | Рубрики: 05.03 14.01

Batyushin G.N.

 

Dolgikh G.I., Valentin D.I., Batyushin G.N., Dolgikh S.G., Kovalev S.N., Koren' I.A., Ovcharenko V.V., Yakovenko S.V. «Seismoacoustic hydrophysical complex for monitoring the atmosphere–hydrosphere–lithosphere system» Приборы и техника эксперимента, 45, № 3, с. 120-122 (2002)

The seismoacoustic hydrophysical complex intended for investigation of the interaction of geospheres wave fields in a frequency range from 1 μHz to 1 Hz is described. The complex consists of a shorebased system of laser strain meters, laser nanobarograph, bottom station with a hydrophone and a temperature-sensitive element, weather station, and seismoacoustic radiator. The use of modern laser-interferometry methods provided a deformation sensitivity of ≈10–10 and an atmospheric-pressure sensitivity of 10 mPa.

Приборы и техника эксперимента, 45, № 3, с. 120-122 (2002) | Рубрики: 09.04 14.01

Bavizhev M.D.

 

Bavizhev M.D., Burlikov V.L., Vorob'ev S.A., Kargapol'tsev A.V., Simanchuk V.I. «An acoustic method for determination of heavy high-energy charged particle energy» Приборы и техника эксперимента, 34, № 4, с. 47-48 (1991)

A method for determination of heavy charged particle energy using the results of acoustic measurements is suggested. To test the method, the energy of protons has been determined at the IHEP I-100 linac with the following parameters: 100±1 MeV particle energy; 1·1010–1,5·1011 sm–2 particle pulse intensity; 0.3–60 μs current pulse length. Determination error for about 100 MeV protons doesn’t exceed 3%.

Приборы и техника эксперимента, 34, № 4, с. 47-48 (1991) | Рубрика: 14.02

Bezotvetnykh V.V.

 

Bezotvetnykh V.V., Kamenev S.I., Kuz'min E.V., Morgunov Yu.N., Nuzhdenko A.V. «An acoustic transceiver for monitoring dynamic processes in the ocean» Приборы и техника эксперимента, № 6, с. 129-133 (2023)

An acoustic transceiver for the monitoring of dynamic processes in the ocean by acoustic tomography methods is described, and the results of its tests are presented. At an acoustic pressure of 2–6 kPa/m produced by the transceiver in the emission mode at frequencies of ≈250 Hz and an rms error in determining time intervals no larger than 2 ms, the flow velocity component can be measured to an accuracy of 10 cm/s by using the countersounding scheme.

Приборы и техника эксперимента, № 6, с. 129-133 (2023) | Рубрика: 07.20

Bezotvetnykh V.V., Kamenev S.I., Kuz'min E.V., Morgunov Yu.N., Nuzhdenko A.V. «An acoustic transceiver for monitoring dynamic processes in the ocean» Приборы и техника эксперимента, 45, № 1, с. 129-133 (2002)

An acoustic transceiver for the monitoring of dynamic processes in the ocean by acoustic tomography methods is described, and the results of its tests are presented. At an acoustic pressure of 2–6 kPa/m produced by the transceiver in the emission mode at frequencies of ≈250 Hz and an rms error in determining time intervals no larger than 2 ms, the flow velocity component can be measured to an accuracy of 10 cm/s by using the countersounding scheme.

Приборы и техника эксперимента, 45, № 1, с. 129-133 (2002) | Рубрика: 07.20

Boev S.G.

 

Boev S.G., Kuz'min A.N., Lopatkin S.A., Paderin V.A. «Probing the distribution of bulk charge and polarization in solid dielectrics by acoustic pressure pulses» Приборы и техника эксперимента, 36, № 4, с. 187-196 (1993)

A brief analysis is given for the results of physical description of the method; its potentialities and conditions of implementation for probing the distribution of bulk charge’s electric field intensity and polarization across a plane-parallel sample are considered. A device implementing the method on the basis of the inverse piezoelectric effect is described. This device makes it possible to probe the samples with frequencies of hundreds and thousands Hz with a field sensitivity threshold ≤102 v/cm and a resolution ≤20 μm. The application of the method is illustrated by experimental results.

Приборы и техника эксперимента, 36, № 4, с. 187-196 (1993) | Рубрика: 06.06

Bogdanova Kh.G.

 

Bogdanova Kh.G., Golenishchev-Kutuzov V.A., Shakirzyanov M.M. «Spectrometer for studying the magnetic resonance and nonlinear acoustic phenomena» Приборы и техника эксперимента, 40, № 4, с. 60-62 (1997)

A pulse magnetoacoustic spectrometer is described for studying acoustic nuclear magnetic resonance (NMR) and nonlinear magnetoacoustic effects in the frequency range of 500–1000 MHz and in the temperature range of 4.2–300 K. The spectrometer sensitivity at 664 MHz is –100 dB for measuring the sound absorption at the emitted power of 1 W. The design of original acoustic device is presented. The spectrometer possibilities are shown taking as an example the study of acoustic NMR and acoustic spin echo in light-plane antiferromagnetics.

Приборы и техника эксперимента, 40, № 4, с. 60-62 (1997) | Рубрика: 05.12

Borshchan V.S.

 

Borshchan V.S., Rezvov Yu.G., Sivkova O.D. «Manufacture of a converter for surface acoustic waves» Приборы и техника эксперимента, 36, № 2, с. 189-190 (1993)

A converter for excitation of surface acoustic waves in piezoelectric materials is known, for manufacturing which they make a recess on a sound guide’s surface by the method of ion etching. A method for the mechanical fabrication of such a recess is described. By this method, a converter with a central frequency of 10.4 MHz at an excitation effectiveness of 27 db is made from lithium niobate Y+128-section.

Приборы и техника эксперимента, 36, № 2, с. 189-190 (1993) | Рубрика: 14.02

Burlikov V.L.

 

Bavizhev M.D., Burlikov V.L., Vorob'ev S.A., Kargapol'tsev A.V., Simanchuk V.I. «An acoustic method for determination of heavy high-energy charged particle energy» Приборы и техника эксперимента, 34, № 4, с. 47-48 (1991)

A method for determination of heavy charged particle energy using the results of acoustic measurements is suggested. To test the method, the energy of protons has been determined at the IHEP I-100 linac with the following parameters: 100±1 MeV particle energy; 1·1010–1,5·1011 sm–2 particle pulse intensity; 0.3–60 μs current pulse length. Determination error for about 100 MeV protons doesn’t exceed 3%.

Приборы и техника эксперимента, 34, № 4, с. 47-48 (1991) | Рубрика: 14.02

Bychkov V.B.

 

Albul V.I., Bychkov V.B., Gusev K.E., Demidov V.S., Demidova E.V., Konovalov S.L., Kurchanov A.F., Luk'yashin V.E., Lyashuk V.I., Novikov E.G., Rostovtsev A.A., Sokolov A.Yu., Feizkhanov U.F., Khaldeeva N.A. «Measurements of the parameters of the acoustic radiation accompanying the moderation of an intense proton beam in water» Приборы и техника эксперимента, 44, № 3, с. 50-57 (2001)

Using the external proton beam of the accelerator at the Institute of Theoretical and Experimental Physics (ITEP), an experiment was performed on recording the acoustic signals accompanying the moderation (up to termination) of an intense proton beam with an energy of up to 200 MeV in water. The signals are damped quasi-periodic oscillations, whose initial period reflects the features of the radiating system. Parameters of the acoustic signal are measured in a wide range of energy release (from 1016 to 1.2·1019 eV) for three values of the beam diameter.

Приборы и техника эксперимента, 44, № 3, с. 50-57 (2001) | Рубрика: 14.02