SCIENTIFIC ABSTRACT TARTAKOVSKIY, A.I. - TARTAKOVSKIY, B.D.

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• Collection: Scientific Abstracts
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• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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TARTAKOVSKIY, A.I.
-
Treatment of various forms of dea~fness with alle extract
according to Vo P. Filatoy-Vest. otorinolar. no.5%47-51
SePt-Oct 1950. (CIAG 203 1)
1, Of the Clinic for Diseases of the Bar, Throat, and lose
(Director -- Prof* A* I. Geshelin). Odessa Medical Institute'.

ARTAMISMY ) - A-.
33526
Sostoyaniye Verkhnikh Dykhateltnykh Putey U Boltnykh Brutsellezom Vestnik Otorirolaringolo-
giip 1949s No 5p C. 51-57. -Bibliogr: c. 56-57
SO: Letopis' Zhurmllnykh Statey, Vol, 45, Maskva, 1949

TARTAKOVSKIT, A. Ya.
"NONW,010"i
cochleovestibular
On the
disorders in early syphilis and
effects of modern methods of specific therapr. Test.
otorinolar., Moskva 13 no.4:22-25 July-Aug 1951. (CIML 21:1)
1. Candidate Medical Sciences. 2. Of the Clinic for Diseases
of the Ear, Throat, and Hose (Director - Prof. A. I.
Geshelin), Odessa Medical Institute.

Upper respiratory tract In bypertem ion. Vest. otorinolar., Xaskm 13-
no.4:35-40 July-Aug j231. (CM 25:1)
1. Candidate Medical Sciences. 2. Of the Clinic for Diseases of the
Jar, Throat. and Nose of Odessa Medical Institute (Acting Head of Clinic
- Docent M. 1. Garshin).

TARTAKOVSKU,
kandidat meditainskikh nauk; QARSHIN, M.I., doteent, ispolnya
Lannost' zaveduyushchego klinikoy.
Upper respiratory tract in hypertension. Vest. oto-rin. 15 no.4:35-40 JI-Ag
153. (MLBA 6:9)
1. Ilinilm bolenney ukha. gorla i nosa Odeaskogo maditsinBkogo inatituta.
(Elypertension) (Otorbinolaryngology)

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ible
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Ciro levels, the higher of whkh coinri&4 with tlu3 I'
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) L~ :). and A. A.
"An Experimental Investigation of Diffraction in the Focus of a Zone Flatell,
Dokl. AN Sci. URSS J~, P 395, 1947.

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USSR/Physics - Acoustics
1-hr 49
"Architectural. Acoustics in the USSR," N. 11. Andreyvev, V. S. Grigorlyev, I. G. Leyzer,
L. D. Razenberg, B. D. Tartakovskiy
"Uspekhi Fiz Nauk" Vol XXXVII, No 3, pp 269-315
Lengthy, general, historical, and nonmathematical discussion of acoustics of chenbers;
sound absorption; sound intensification; sound insulation; sound measurements. Gives
extensive bibliography of 421 references covering all RtIssian works on architectural
acoustics from 1861 to 1948
P A 170T98

USSR/ftlics - Sowd Aug h9
Acoustics
*Representative Conference of the Acoustics Cc&-
21189100, Acadmmy of Sciences IISSli," B. D, Tartakovskly,
17 PV
"Umpekh Fix Nauk" Vol MMVIII, So
CAmfollence, attended by 138 persons representing
55 4clentific Institutes and various ormwizations,
vas held in Momcov 26 Feb - i mar 49. in his repqrt
on the 4-me2m-p-cat of Soviet ultrasonic detectoo
Sokolov stated that the taking of sonic p:LC-
tunn In the saw fasbion as done in the usual smic
m1cwMeope, is a 'E'undjamentsIly new detectoscopy metbod.:,
67/49TIO
UB=/Physics - Sound (Cmtd) Aug . 49
Zn counection vith tIds, the sound conduStivity of
astals and crystals at frequencies of 101 - IOY cy-
elm Is being studied. A. A. Mwushchyov demonstrated
a two-charmel sound-reproducing unit vith high
fldalli.7 Ind 9. The navly devised systemi emplo7w
separate reproduction of high and low freqaencies.
Autbms of the voik were awarded the Stalin Prize for
czwftlng a mm system of sonic reproduction.

TIMAKOVSKrf, B. D.
'UdSR/PbysIcs - Sound Focusing I Nov J~q
Lenses,-Ultrasonic
Spherical Aberration of Sonic Lenses," B. D.
Tartakovskiy, Phys Inst imeni P. N. Lebedev,
Acad Sci USSR, 4 pp
"Dok Ak Nauk SWR" Vol LXIX, No I
Discusses dependence of spherical aberration of
homogeneous lenses upon their forms and indexes
of refraction, in connection with ultrasonic
technology of focusing sound by sonic lenses.
Graphs show curves of spherical aberration dB
versus lens height H for various refraction in-
dexes n. Submitted by Acad S.I. Vavilov 6 Sep 49.
156Te6
PA 156T86

TARTANOVSKIYI B. D.
"Theory' of PriotagatiOfi Of Yjan~ Waves Throiwh
Homogeneous layei;' B. D. Tartakovsk1h PhY8
Inst imeni-Lebedev
ITDok Ak Nauk-SSSR7 V01 LXXI) No 30' PP 465-468
Calculates coefficients of reflection and refrac-
'tion for'passage of plane vaves through n homoge-
neous plane layers with arbitrarily given vave
resistances and thicknesses of bounded. s~mi-infi-
nite media, leading to solution of systt~i of _-
2(a + 1) algebraic equations formed in stibstitu-
tion into boundary conditions.of-~otexit$als-.-bf.,
girect and inverse bo IAry itediaawnd
layers. Sumatted 2MV2 ~80 b'y,'V&A S.I. vIlOv.
PA 165T91

UBOR/Physics - Bound, Ultrasonic* 1 Nov 50
Acoustics
"Sonic Transitional Layers," B.M. Tartakovskiy, Phys
Inat imeni Lebedev,, Acad Sci USS~
*Dok Ak Wauk SSSR" Vol LXXV,, No 1, pp 29-32
Presents actual problem or total transparency of
boundaries between different Wia, in development
of ultrasonic tecbnol and acoustics. Considers com-
plex coeff of retLection R with arbitrary character-
istiessimpedances Zi. Plots D vs f1fO and mine of
phase angle occ=ing in compleit R and Z. Submitted
9 Sep 50 by Acad S. I. Vavilov.
178T94
4ftl- 1"

T;-,-,,T r--,' - '~~ AD&
"Extensive Uonference of the Committee on Accustias, Acadermy of
Sciences TJSSRII Uspekh F4z Na&, No 4, Awl 1951 po 636-644

tVW/Mysice - Sound, Refraction of Oct 51
"Tmusition of Sound Wave Througb Boundaries of
Solid and Liquid Media," B. D. Tartakovskiy, R*rs
r=t Imni 1,ebedev, Acad Sci LMSR
"Zhw Tekh Piz" Vol M, no 10P' pp 1194-1201
Prdl)lAw gained importance in study of elasticity
Nodulus of materials by ultrasonic vaves and in
deftetoscopy of metals. In his previous work
(zt "Dok Ak Nauk SSSR" Vol LXIX, 1949) author
xbowed advantage of solid lenses,over liquid ones.
Ptew~ comuutations of refraction coeff do not
193M
msp. 1 as. f
oA nd, 6, 5 1
action o
cla.-Ify their connectiona vitb par=eters of media
and are difficult to use. Author attempts to In-
rrove tbir. deficiency. Submitted 24 Jan 51."
193T97
E-

USSR/Physics - Sot:ndj Soitic Lenses al Jun 51
"Experimental Investigation of Diffraction in
the Focus of Sonic Lenses," B. D. Tartakovskiy
"Dok Ak Nauk SSSR" Vol LKXVIII, No 6, pp 1119-
Results obtained show possibility of employing
sonic lenses as attachment to radiators for cre-
ation of planar sonic f1ds on great surface of
vave f ont, and also for obtaining converging
Ir
and diverging sonic flds. Expts also show ex-
cellent focusing properties of sonic lenses that
are made of solid materials. Author was assisted
184T109
USSR/Physics - SoundI Sonic Lenses' 21 Jun 51
(Contd)
by Prof L. D. Rozenberg during the vork'and by
X G. Sirotyuk in the nedsurements. Submitted
8*MaY 51 by Acad G. S. Landsberg.
184T109

As Awineering - Soundproof Material 21 Jan 52
Physics - Acoustics
"Yiessurement of Sound-Absorbing Materials in
Reverberation Cbanber," B. D. Tartalwvskly, K. X.
Rtrussi, Phys Inst imeni Lebedev, Acad Sci UBSR
"Dok Ak Uuk SSSR" Vol Ir , No 3, PD 373-376
Me Importance of the reverberation method of
weaswIng coeffs of sound-absorption has been noted
frequently (N. N. Andreyevj, "Trudy Almsticbeskc7
Kasixissli.. Sbornik" 3, 9, 1939); and bhe method
bas been long in practical s7plication. (N. IL
XUblyeva, "Trudy Nauchno-IssledawateLirskiy
211T55
tustitut Tizichesk4kh I Xhlynich akll& Izzledovanly"
(Works of Sci Res Inst of Phys and Chem, Res) 6,
173, 1937). It has been but little studied., however,
and bas teen limited mainly to clarifying the role
of bOCA827 effects (G. A. Golldberg, "Trudy
Lknxtitheskoy Kommissii, Sbornik" 3, 33, 1939) -
Gives the results of spiecial investigations of
the revexteration. method at the acoustic laboratory
of the Ph" Irst. Submi by Acad K. A.
leontovich 28 Feb 51. Thank ff. N. Andreyev.
0-1 '1 T5 5

jKly. B.D.. ksudidat tekhnicheskikh naUk, t,Cs. Vast AX -%OR 23
TARTUOVS ~ I
pi~ 9 and sGASurownt Of &COUA (xLR& 6:11)
!, the pbysic
conference on (Sonud-COnST06366)
,1,15-123 0 153
n0.10. -

TARTAKOVSKIY, B. D. Apr 53
USSIVPhysics - Ultrasonicst Conference
"Conference on Ultrasonic Defectoscopy, and on General ProblezrLg of Ultrasonics,* B. D.
Tartakovskiy
Usp Fiz Nauk, Vol 49, No 4, pp 601-611
Conference,,% held-in Moscow, was called by the Commission on Acoustics, Acad Sci USSR.
15 reports were presented, 9 devoted to ultrasonic defectoccopy and 6 to other problems.
Various ultrasonic apparatus devised and produced in domestic labs were demonstrated.
267T91

TARUKOVSKIT, B.P.
Conference on physical and mansurative acoustics. Usp-fis-aw, 50 no.
1:123-133 My 153. (XLIU 6:7)
(Sound waves) (Sound-Heasurements)
Acoustics conference, held in Moscow, was organized by Acoustics
ComrLittee of Phys-Math Dept,, AS USSR., together with Comrdttee of Measurements and
Measuring Equipment of Council of Mirdaters USSR. Ten reports were presented on
metrical acoustics and 4 on physical acoustics. it was decided to discuss theme
topics 2-3 times a year.
261T103

-TA'RTA'&CV3KTY)
IfInstallati,-n of Distributed 3-stams of 31-eakers in 0-,en Sraces".
Acoustic Institute, AaadeW, of Sciences USSR
A rel.ort delivered at a conference on Uectro-a,:oustlics held b-1- the
Acoustic Institute of the Academy of Sciences, US R, anf the Kiev Order of Lenin
Polytechnic Inst., frora 1-5 July 1955 in Kiev.
SO: Sum 728, 28 Nov 1955

I -D
BREMVSKIKH, L.M.. doktor fiziko-matematichookikh nauk; BTALOVA, T.T.;
ivAN6v, I.D., Imndidat fisiko-matematicheakikh nauk; ISAKOTJCH,
M.A., doktor fisiko-satematicheskikh na7&* redaktd-r; RABINDTICH.
N.Ta., redaktor; ROZIMBIRG, L.D., doktor takhniche'sidkh nauk,
redaktor; TARTAKOVSKrY, B.D., kandidat tekhnicheskikh nauk.
GUROV, T&D., takhnichookly redaktor.
[Scientific literature on acoustics during the years 1945-1949]
Nauchnaia literatura po akustike za 1945-1949 gg. Koakva, 1955.
276 p. (MLRA 8:12)
1. Akademiya, nauk SSSR. Komisslya po akustike. 2. Chlen-korres-
pondent AN SSSR (for Brekhovskikh)
(Biblio,grapby-Sound)

UBWoclartific Organization - Conferen-ces
cam 1/1 Pub. 124 - 23/30
Authors i Tartakovakiy, B. D., Cand. of Tech. Sc.
Title t Problems of physical acoustics and ultradonics
Perlodlea o Vest. AN SSSR 25/7, 117-120m Jul 1955
Abstract t Minutes are presented of the meeting organized by the Coamission on
Acoustics at the Phys-Math. 3c. Section of the Acad. of Sc., USSR at
which matters pertaining to physical acoustics and ultrasonics were
discussed. Names of Soviet scientists present at the meeting are listed.
Institution : .......
&sbmitted : .......

TAIRTAKOVS q
, IY i.-
r__~
Scientific Conference on Physical Acoustics and Ultrasonic@. Unp.
fiz.nauk 56 no-3:445-456 Jl'55. (KLRA 8:10)
(Sound--Congresses) (Ultrasonic~--Congresses)

-TARTAKOVSKIY_, B. I).
"Filters and Ylatching Layers for Ultrasound)" paper presented at the
Second International Congress on Ad~stlcs, Cambridge, Mass., 11-23 Jun 56.
Institute of Biological Physics, Moscow, USSR.
az,b-~C,, &.t1 )) S 1) S S K

-----------
UWE/Acoustice - Ultrasonics, J-4
Abst Journals Referat Zhur - Fizika, No 12.. 1956., 35571
Author: Khmirl J. G. I., Tartakovskiy, B. D.
Institutions Acoustic Institute of Academy of Sciences USSR, Moscow
Title: Experimental investigation of Ultrasonic Transition layers
Original
Periodical: Akiot. zh., 1956, 2, No 2, i5 .4.i.'160
Abstract: To check their theoretical deductions., the authors have investi-
gated experimentally a method of creating a total sound-permeating
boundary between 2 acoustically different media with the aid of
transition layers. Speclmes&of cylindrical , and flat
spherical.
forms with and without coverings of transition layers were 'placed
alternately in water, in the field of a plane -altrazonic wave* The
ratio of the voltages, picked up with a rece:~ving gage lomted back
of the specimens in the focal point of an acoustic lens.,were used
to determine the coefficient of sound permeance of the "transillu-
minated" specimen. The use of an acoustic lens made it possible to
Card 1/3

MR/Accuotics - ultrasonics, j-4
Abst Journals Referat Zhur - Fiziko~r-T& 12,, 1956.. 35571
Abstract: average "automatically" the results and to suppress the noise due
to the reflection of the sound waves from the inecupletely deadened
walls of the vessel. The measurements were carried out in a fre-
quency range of 500 - 2.,000 kc with an average random error (.f
0. 1 db a, A description is given of the pethcKUW. WVpa;
4#0n of
transition layers of metal,, plastic., wA la~(Iuer, depending on the
shape of -the "transilliminated" specimen and an the computed ilt
b-Ination frequency. The results of exper~imental Uyeatigations
in 2 series of measurements are givent with trihedral prism or
plane-spherical. lenses and with solid plane-parallel plates. The
experimental points fell on the theoretical frequency character-
latic of the sound permeance coefficientwithin the limits of ex-'
perimental error. The sound-permi*nce o? the aluminum-water
boundary rose upon "trawillusination" to 9e-90, and for the
other plate it.rose to 90-92%. The frequency band of the sound
permeance of the specimens was extended substantially by more
than 10 tomes by using double tranattion layeras It isnated
that the "tranaillvnination" makes it possible to employ metallioc.
'!%Ping low losses, the wie of which was *'.:~
lenses and prisms,,-,. WW-fl,
Card 2/3

USSR/Acoustics - Ultrasonics, J-4
Ibst Journal: Referat Zhur - Fizika, Wo'12, 1956, 35571
Abstract: formerly made difficult by high reflections at the boundaries.
On the other hand, the use of noncontact tremsition layers may
turn out to be useful when sounding metal articles, located in
a liquid.
Card 3/3

AfA"A 1F ff, 13-1)a -
Scientific meeting on else troacous ties. Uspfis.nank 58 no.2:
34~-358 1 156. WRA 9:6)
(liev-Blectroacoustice-Congresses)

Experimental study of an ~pea-air public address syvtez vith even1jr
distributed sound sources. DekLAN SSSR 108 to.4:636-639 Ja 156.
(KIRA 9:9)
I.Akunticheekly Institut Akademii nauk SSSR. Predstavlone akademikem
N.N.Androyavym.
(Architectural acoustics) (Microphone)

AUTHOR: Tartakovskiy, B.D. 4,6.2.12/23
ZeITIB: Ultrasonic filters with controlled frequency bandwidth.
(U1'trazvu_kvme interferentsionnyye filtry s Jzjenyayemymi
chastotami propuskaniya)
PERIODICAL: "Akusticheskiy Zhurnal'? (Journal of Acoustics), 1957,
V01.31 N0.21 pp. 183-191 (U.S.S.R.)
ABSTRACT: The sonic field of normal plane piezoelectric sound sources
is not homogeneous and has, apart from a cylindrical main
sound beam, obliTe side beams. By suitable arrangement of
flat composite surfaces placed in i;he front of the source,
compensating filters may be obtained (1), (2). Practical
application, hov.-ever, of such filters could be found only if
their pass-band was made to vary continuously and smoothly.
In the present article the author proves analytically that such
filters can be realised. The theory of propagation of plane
sound waves through an arbitrary combination of flat homogene-
ous liquid layers gives the expressions for determining the
Card 1/4 permeabilit coefficient of the medium for the sound energy
Dw (eq. (1~ and f or the ref lection coeff icient % as
functions of the material parameters and of the thickness of
the layers (3). In eq.(l): f = sound waves frequency; Z i
wave impedance; cpi. ~-_- wave thickness of the layer,

46-2-12/2_3
Ultrasonic filters with controlled frequency bandwidth.
(Cont.)
ai = sound propagation velocity, ()i= density, angle
of incidence. For the sound reflection to be absent, (the
amount of reflection determining the "transparency" of the
asymmetrical interference filter), eq.(8) is to be satisfied,
which for the case of a homogeneous single layer filter reduces
to eq.(9). For the three layers combinat-ion, eq.(8) becomes
(11) Which has four solutions, i.e. I, II, II and IV (eqs. 12,
12a, 12,f and 12B), where Z and 7, in eq. (12B) are arbi-
trary constants. The solutZ;n IV is 9f most interest. Since
in the lefthand side of the equation one has a product of
tangents of (p, and (P2 f it becomes possible to compensate
for their relative changes, e.g. by vary-Lng or 1 2 (thick-
ness). It follows that, in principle, it would be possible to
realise equalising filters with a smoothly varying pass-band.
in practice, it would mean varying the thickness of the inner
liquid layer. Since further analysis shows that it is possible
to obtain a continuously regulated filter using three layers
Card 2/4 only, a 3-layer filter only is considered in detail. The
condition for full sound 11trmn parency" is derive4 eqs.(29)(30)a

116-2-12/23
Ultrasonic filters with controlled freqaency bandwidth.
(cont.)
Since, for highly selective filters, a small deviation from the
centre frequency and that of -the incidence angle leads to an
appreciable decrease in D w , the azz-band of a 3-layer filter
is determined by expanding eq.(30Z into the Taylor's serieB
0
with respect to (p, and (P2 in the vicinity of (p, and fP2
and eq. (34) is obtained, permitting the calculation of the
pass-band with respect to frequency and the incidence angle.
The influence of losses on the pass-band is given in approxim-
ation by eq. (40), which shows the broadening of the pass-band
with increasing losses. The theoretical analysis has been
applied to an experimental 3-layer ultrasonic filter. It con-
sisted of two plane parallel aluminium plates with a regulated
width of the water layer between them. The thickness of the
plates was accurate to 0.005 mm and the arrangement and regu-
lation of the system followed the procedure set in (5)- Fig.4
which gives the frequency characteristics of the filter,
confirms very well the theoretical calculations.
There are 3 graphs illustrating the theoretical analysis
Card 3/4 and 1 graph of the frequency characteristics of the experi-
mental filter against layer thicknesses. There are 5 references

46-2-12/23
Ultrasonic filters with controlled frequency bandwidth.
(cont-.)
4 of which are Slavic.
ASSOCIATION: Institute of Accustics, Ac.Sc.USSR.
(Akusticheakiy Institut AN SSSR)
SUBMITTED: August 1, 1956.
AVAILABIE: Libnmy of congmse
card 4/4

TARTANDVSKIT, B.D., kLndidALt takhnichaskikh nauk.
'Notes control In indugtz7* by I.I. Slavin. Reviewed by
P.D. Uptakovskil. Vest-maeb- 37 no.2:91-92 7 '57. (WRA 10: 2)
(SAGO) (SleTin, I.I.)

V
NAUMMIA, 11. !. , TARTAKU-ISKI-Y, B. D. , and 'z"DIUSSI,
"Eyly-arimental Study of Scra- Vibratim-Absorbinc llzterials."
paper presentel at 4th All-Union Conf - an ACOUStics, Mloscclwl 26 may June 5B.

I-DOV-46-4-3-1?/18
AUTHOR: Tartakovskiy, B, D,
TITM The Conferonce (IV Vsesoyuznaya
akusticheskaya konferentsiya)
PERIODICAL: XkusL-ichoskiy Zhurnal, 1958, Vol 4, Nr 3, pp 292-2911'-
(USSR)
ABSTRACT: The 4th All-Union Acoustic Conference took place in
Moscow between May 26 and June 4, 10,53. 728 delegates took
part in the conference, ariong them delegates from the Ger;iian
People's Republic, China, Poland, USA, Czechoslovakia and
others. The Soviet contingent consisted of 6?? persons.
173 papers were read to the conference; 34 of thea vrere
from the forei-m delegates and the remainder were Civen by
Soviet scientists.
1. Ultrasonic radiation--Metallurgical effects 2. Metals--Ultrasonic
factors 3. Metals--Phase studies
CarO_ 1/1

SOV/46-4-4-9/20
ATJ THOR s Tartalcoviskly. B.D.
TITLE: Diffraction of Sound yjaved In Converging Bows k0 difraktall
zvulcovyldh voln v s1rhodyashchl1rhaya puchkalch)
FZRIODICALs Akasticheskiy Zhurnal, 1968, Vol 4, Nr 4. pp WIF-360 (USSR)
ABSTRACT- It is not e2ways possible to apply the result,% of calculations on
optical focusing systems to acoustical focusing syatems. This is
because in acousti,-s the dimensions of the focusing system are not
always very large compared with the wavelength, because there may be
a non-uniform distribution of amplitude along the vave-front or because
the converging va-79-front is not spherical or the angle of aperture may
be large. 'xhe paper considers diffraction of sound waves at the
focus of a system with a non-uniform amp.Litads distribution along the
wave-front, with wave aberration and a large angle of aperture. The
acoustical system considered may also have dimensioAs which are not much
greater than the acoustic wavelength. It Is found that the amplitude
may differ considerably at distances greater than one wavelength
-without affec!ting tho diffrao-vion image too mu-.%. Certain special
ca,3ar, are conisidered, in partimlar the field on the axis ct the acoustic
Ca rd 1/2 beam (or very elcAe to the aVL~) at an arbitrary distance from -the focus,

, Diffraction of Bound Wa'168 in Gonverging BGP-'&s
SOV/46-4-4-9/20
The resu1+0 obtained earlier by other workera (Refol 1. 4. r) are
discussed ortraically. There are 7 referenees, 3 of which are So,4oit,
2 German and 2 Ameri,:an.
ASSOUATIONs Aloastichesidy Justitut, AN SSSR, Mosba (Accrastical Institute.
AvOemy of Sciente of the U.S.S.R., Moscow)
SUEMITTED; Septembar 15, 1957
Gard 2/2

4-4-- 15/20
_WTHORS B.F, and TartakcvAdy, BX,
TI TLE Atteruation of Pla~.Isy k-cw7ti-, Wavor, of Firjito Amplitude in GasoF
(0 zatukhanli plor-IrWi rvuirovykh -01n kcno,Aer;y amplitudy v gazakh)
FERIODICAL. A;ms-tI--:herL,,Ly Zhurr-al , Va" 4.- Nr 4, pp 3E9-11;71 (USSR)
AECTRACT: Attdritiation of plane a.,.ousVj.-~, Ywavea ef finite amplitude in viscous
jjaat--,,;,)rui,a,:tIrLfr, modl.a waq daalt with theoretically in Rota 1, 2.
Experim-antal meanurr=ontz in gaoet. made at IA-40 kl-/r, wara raported
in Ref 3, The prenent alithor--. studied dopendenne of the attenuation
of 13 kVz acoustit wa7vs in gase.3 on their intennity. An electro-
dvrlaw-li? rosonanrtk gonerator (-,f the type descrited --n Ref 4 vas attached
t,~ a cylindrical tuba of 1Z,0 cta length and 1k.4 cm diameter (the
t;onerator diameter -na-s 12 r5n). A 3imiaoidal voltage was applied to
,sn,,rator f;!jm a ' LW rc%ri.-e, The rat!lating element -was a golid
the jr Q
alwainium cqlide~r with 13 roftonanc-t frequency. jhO radiated wave
m3 not fLully planar. The variuticn of sound presstz3p, alf)ng the
f Card I/C ti-be &mie was measured by moap--; of a lcarlum titeaato probe. Fig 1 shows

Attonuatior of Plane A~.oustl:: Waves of Fir-ite Amplitude in Gases SOV/46-4-4-15/20
the ro-und pre~-sizra pi as a Danction of the dl-ataa,?s along the tu's r.
d~qnota experimental rer--ultm plottwl direr.,tly. while 4arosve~
represent atatisti-v-11y averaged o-at results. Fig 2 shows depoclen-:-3
ef the attenuation coefficient OL, an a Punetion of p,, where p4i3 ths
mean value o:C p at r - 75 -m. Fig '&.I shows that C~, ii a linear function
of This linear dependerce can tre u-;ed In thd ~hoif,,e of ar~ousti,!
tarameters In apparatus ured f