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Transcript

- 1,J·1 (

16 Kon.

Pe ~al<TOp E . K . Axc encu a . l'1a Ke T II. A . Kaceneaon , Ha60p B. C. PYM ll lI l\ eno i! , 11 . I" , AIIApeeBoi! .

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J .MIOJle, H.llona, M.n OlleCKY

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I IEl1TPOliHOr O CflE KTPOM8TPA

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1985

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napaMeTPbl'i i i = 1 , . . . , 41 6blnH nonyveua C nOMOll\b~ nOArOHKH no MHK ¢YHK4l-1M 1131 K 3KcnepHMeHTanbHWM AaHHWM AnH rpe6eH4aTo­r o 3aMeAnMTenR / 6 / . nOArOHKa npOM3BOAMnaCb cpa3Y AnH 4eTwpex Anl-1H BonH 10,96; 1 , 28 ; 1 , 93 l-1 3 , 82 AI. QOH npeACTaBnHJlCR B BMAe AByX c narae-iux : Aexp!-a(t +T )]+B 1 ; T j = G, L A1·/ j = 1, ... ,4 - HO­

J I .Mep COOTBeTCTBYIO~~l-1 X AnMH aom- , napaae r pu KOTOpblX r akxe onpe-AeDRnMCb B XOAe npo~eAYP ~ nOArOHKl-1 . B pe3ynbTaTe 6 b1nM nonY4eHbi

<J - 3 ° _cneAY~~l-1e 3Ha4eHl-1H: (1 = 169,4~1 ,51 MKC A ; '2 =/0,491~0,016/A

,,- 1 2 (3 = 1131,7~1 ,51 MKC l-1 '4 = 12 ,86~0,37/.u. , npn X Ha OAHy

CTeneHb CB060Abl, paBHOM 1 ,58 , M Hal-160nbWHM R - ¢ a KTo pOM AnR OT­genbHblx Kp MBWX 1 ,7 ~. Ha pMc .4 nOKa3aH pe3ynbTaT nOArOHKM . Hc­nons aya 3Tl-1 MOAe nM An H ¢YHK~M ~ Y l-1 Z. CBepTKa III I MO}!{eT 6blTb Bbl4McneH3 aHanMTM4eCKM. npM 3TOM nOJlY4alOTCR pa auue ¢opMynbl AnH

n HTl-1 l-1HT epBanOB: l .s ' I ' t I SI S' 1 -+ 10' 11 " , o:::t s.t 2' 1 2 : 1 : 12-+10' ,~ 1

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nonY 4 a~~ l-1e C R BblpameH MR AnH napaMeTpOB rpOM03AKH l-1 n03TOMY 3Aecb He n pl-1 BOARTCR . Ha p ~ c .5 npeACTaBneH BMA ~YHK~Ml-1 P(A . I) AnR He­KOTOpblX AnMH BonH . Ha pl-1c .6 npMBeAeHa 3aBMCl-1 MOC Tb rna BH~ X xa ­paKTepMCTMK OT AnMHbl Bon Hbl : nono*e HMe nMKa - 1, ~eHTp TA ~ eCTl-1 ­2, W~pl-1Ha Ha nOnOBl-1H e BWC OTbl - 3 , AMCnepCl-1H - ~ , aCMMMeTpl-14­HOCTb - 5 H 3Kc~ec c - 6 . BMAH O, 4TO npM A > 2 ~ Bce x a pa KTe p l-1 ­CTl-1 Kl-1 CTaHOBRTCR nOCTORHHblMl-1.

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IH a n pMMep, , S 128 MKc/ . B n pOT..,Bo no n OIK HOM CJlY4 a e CBepTKy 171 MOIKHO n e r KO B~ 4 Hc n~ T b, MMeR 13 B ~ AY n pRMoy ronbH~A npO$Mnb $YHK­4 HH A( t) .

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CI1N YMiJ, 2 - uea -r p THJKeCTH , 3 - tnapana na non omnte B bJ­

COT~ , 4 - l Uicnep CHH , 5 - aCH MMeTp H H , 6 - 9KC U C CC.

4. ~YHK~MR n po ny c Ka HMR CI1CT eM~ MOHoxpOM aT H 3a~ M H M( AE J . n p M Ha n..,4MM To n bKO OAHoro Konn ~ M aTopa . B 3HepreTM4e CKOM Ma c wT a6e MMe eT BMA

i\E, M( L\E ) =JfR(y -(,, + --.£! tgO) T ( y) T «(,,) d y d w • 11 81

2 c 2E B e III 20

r Qe Rc(6)- K03$$M4MeHT oTpaIKeHMR KpMCT anna, Tc( Y) - $YHK~H R npo­nycKa HMR KonnM MaTopa l-'l TlI l w ) - pacnpenene -u-e opMeHT a~M A o r nert s ­H~X MOHoKpMCTann M4e CKl-'lX nnaCTHH, M3 KOTOP~ X COCTaB neH MOHO­KpM CTann-MOHoxpOMaTOp, OTH0C HTenbHO MX c peAHe~ opMeHTa ~ MM.

Or oaxaoura» cnoco6HOCTb MOHOKpMCTaJlna B $ op'<le nna c TMHKM , xo r o p aa pa cnonome Ha cMMMeTpM4Ho OTHOCMTenbHO n aA alO~ero M pa CCe RHHo r O

/ 7 / ny4KoB nOJlY4 a e TcR n o M3 Be cTHoA $OpMyne :

11 (1 i · I' + 1'1 cth 1'1 s ) It a

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C 0603Ha4eHMRMM ,- - ---­

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rA e Do - T on~ MHa xpuc r a n n a , It - t<03$ tlJ MI \I~e tH no r n OU\CHMR , Q ­

c e u e u a e p a c c e a u u a eAM H L1 ~ l>1 06beMa M W( 'I . A ) - M0 3a l1 4 Hoe pacnpene­~ n e HMe Inp MMe HRe TcR ra YCCOBCKa R ~YH t< ll M R I C AMc n e p c Mc A lJ • 4>Y H K ~ MR

9

npon YCKa H~H KOIlIl ~Ma T Op a ABIl AeTC A T peyroIl b Ho~ ~YHK~ ~e~ C W~P~­

H O~ U C:

T c: (y ) = 1 I )' I l a c Iyl :: u c' /2 0/

Pacnpe Ae n eH He opHeH Ta~ H~ OT,Qen b HWX MOHOKp HCTann H4 eCKH X nnaCTHH

HeH 3 BeC THO , HO Mom HO e r o np HHATb npAMoyro Il b HwM HIl H Tpey ron b HwM

C W HPHHO ~ 13m.T 04Hbl~ BHA a r or o pacnoencneuwa c nafio ana a e r Ha p e 3 y nbTaT . CBepTKY /18 / BW4 HCn l-1 T b aH an HTH4 e CKM He YAae TCH ,

HO 3 Ty T P YAHOCT b MomHO 060~ TM , Hcnon b 3 YfI np H6n MmeHH e rpaMa -4ap­

n Me p a ( Gr a m- Ch a rl i e r ). AnA cHMMeTpM4Ho ~ $ YHKQMH M: 2 2

- A,) II M(lI ) = -« ~ 11 •. AiI 4(A 11 ) + AllH 6(A 211 ) ~ .. ,1. /212

r Ae u - i\ E :lll:() B / (2 E 2ol H H k - n onH HoMbl 3pM HTa . K o~<lJ<lJVI ~~ 1 eH T L I A k Bwp a malOTCA 4 epe3 nn o~ aAb IlIO H ~ eH Tp aIlbHw e HOpMHpOBaHHwe MOMeHTW

<lJY H K ~ Vl M M /1. (/ . II : 2 4 6

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22 A ( 11 -- :l l' 2 )I( ~i /' - ) ; At; ~ I{ IG - Hi {I:!.(I' 4 - 2 /, ; ) 1 ! ( 576 0 1 1 ~ ) .

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c n c Ay e T 113 CBCp T KI1 / 18 / . MOMCHTW QJY H K ~MI1 R.. on peAen A ~ TCA 411C ­

n CH HWM I1HTCr p l1p OBa HMCM I MCTOAOM r a y c c a - 3 p MI1Ta /, a MOMeH TW <lJ YHK­

Ul111 T" (1' III ) Io1 Met0T B c nH 4~ 'lHY " :!. / (j , II 4/ 1;l ~1 II (j I~ l'; ( {1 :!./ l~ , f'i .l / RO6 - e (: t - III III ~

Iln/ 44S, e cru- 1' 111 - n p AMo y r o nb Ha A) .

5. B c n Y4 ae Gon b WO ~ M0 3 a M4 HOCT I1 Kp HC Ta n n a- MOHo x p OMa Topa

I MnVl np H e r a OT Cy TCTBHH/ KOHK P C' H~~ BHA ¢ YHKQHH npon YCKCl HI1A 6 epVl n n He Bo r o <lJ Hll b T pa F O':) ~1 <lJ Y I; K~ I.1 H III (E ) B ~1 H T c r pa rte 191 0 1J1bliQ

Bn HAeT Ha p C3 y n b TaT BW4H c neH M~ .

nnR F(E) 6wno n o n y4cHo aHa n l1TM4 CC KOC B ~pa * e HIlC n YT CM a n n pO K­

CIo1 Ma411 V1 A2HH WX , H cnanb30 BCl HH ~X 0 ' H~ n o n lo1 HOMOM we CTO~ CTcn C HH

/ c R -<lJa KTop o M - 0. 3 3~/ : I.' (E ) = O, 563 E - 0 ,1 91",:: 2 ; 0 , 377 E :I 4

- O, 164 E + 0 ,0266 E ') - 0 ,O OI 5 E D An A r:::: E = 5, 12 M3B . r

3. CP ABHE HHE C 3 Kc nE P ~lME HTO fl

nJlA c p a BHe HI1 A B bI 4 ~1 c ne H HOH ~YH KI.\ I.1 I1 p il 3 p e WCH.1A C 3 Kc nep VlM e HTOM

MO* HO ~c n OIl b 30B ilT b yn py r ~~ n l1K eaH8 AMR , B 3 TOM cny4ae 3il KOH pac­

ce .9H I1A f1BIl fl CTCR ~YHK~ 11e ~ L1 !popMyn a 18 ' / I1 MCCT ~~'A

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~ YHK~~A / 23/ nOA r OHAn a Cb K 3Kcne p~MeHTan b HO on peAeIleHHWM Aa HHWM

y n p y r o r o n ~ Ka , KOTOPW~ ~ 3Me pHnC R B np~c yTcTB~~ ~ 6e p~ Iln ~eBoro

~~Il b T p a, ~ MOHOKp~CTaIln ~4eC Koro MOHo x p OMa To p a , ~3 rOTOBneHH OrO

11 3 n~pOn H T H4 eCKO rO r pa¢~ Ta . ~OH On HCWBanC A n ara60n ~ 4 eCKO~ ~Y H K ­

~ ~ e~ . nOArOH04 HWM ~ n apaM eTpa M~ c Ilym~Il H : aMnn ~ T YAa , 6p3rrOB C K M~

y r o n 0B' M0 3 aHu HOCT b 1/ ~1 WHpHHa pacnoen en euws Op~eHTa ~~ ~ OTAcnb ­

HW X Kp~C TannM TOB ~m' KOTO pOe n p e,Qn o n ar an OC b T peyr on b HWM. Pacxo ­

A~1 '~OC T b KOJln ~Ma T O pa 6 blJ1a GJ ~KC l-1 pOB a H a , HO TaK Ka K <lJ YH K ~ ~A pa c ­

n p e Ae n CHHA 1~ ~ ) HeH 3 Be CTHa , TO nO ArO HKa npoBOA~na C b n p ~ He CKOn b ­

KHX 3 Ha 4 e HHAX « c 0 AM a n a 3 0H C OT 0 ' AO 180 ' . np ~ 3 TOM n apa Me T pw

ClJo Ha ~1 0 B n p aKH14eC K~ He Me HA n~C b , HO 7/ 1-1 f3 m MeHAnHCb B n pe­Ae na x 12 H 36 MI-1 H COOT Be TCT BeHHO . Ha l-1 n Y4 wa A n OAr OHKa nonY4 Hn aCb

n pn It c = 140 ' C R.-<!J a KTo poM 2 , 7% H na pa a e r p a a u = /38 , 67.:.0 , 03/ ° ,0 13 I] = / 38 , 5.:.0 ,6 /' H /'{ m = / 140, 6.:.1 ,2/ '.

PIiC. 7 . B P C MC II IIO C pu c n pen en e uu e IlHKn y n pyroro pa c c en uu a ua n a lln­lum . TOllK H - :)J( C ll c p HMe Il T . c rurour­n a a K P Il U iH I - p a Cl.jC T 110 !l>0 P MYJIC

- 2000 /23 / , rry ux r apua a xpnn an - IWIlOJI­

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00 rrOJIII IITCJlb HOH ' l aC T b lO np o ny c x a n n u (llHJlbTpa II qlOlI a . 1\ N - OTJlOCII TCJl b ­

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l.lHH n p o nYC Kil HI1R qH111bTp il. Hi) PI1C . 8 nOK il 3i1HI,1 1!IYHI<I\I1H P il 31H::WCIII1f1

\JlII 1I('('KO flbl(HX IlC' P Cj\.14 :lHCpr 1 1~1 , HIJLlf'l( Jl t !l II 11 ,1 ,' ( rll)M( ll'lh ~) li il t1 J~ l' H ­

IIIJ

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11

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.100

'0 • • •• ••• • •30

C4e THoe BpeMR np~M ep HO B 120 pa3 Me Hb we BpeM e H~, KOTopoe Tpe60Ba­nOCb AnR BW4Mcn eHMR $ YH K~~ M pas ­peweH ~R C nOMO~ b ~ npe~H e ~ npo­r paMMbl, Mc non bSOBa HHOf1 B'S/.

HaM XO TenOCb 6w n 06n aroAap~ rb

A.M. 6ana r YPoBa sa none SHwe AM C­KYCC HH, ~ . M . Oc Ta HeB ~ 4a M B.K . Hr ­Ha TOBH4c1 s a KpMTM4e cKoe 4Te HM e pa60 Tw .

I. Pa r l i nsk i K. e t a l , In: Re s ear ch Appl ic a t io ns of Nu cl ea r Pul s ed Sys t ems. IAEA, Vi en na, 1967 , p . 179 .

2 . 5an YKa r . ~ AP . OH HH , P13- 84- 242 , ny6 Hc1 , 1984 . 3 . 50HA ap cHKo H.H., C T a BMC C KM~ ~ .H . A3 , 1959. T. 7 , c . 417 . 4. Car pen t e r J . M. Nu cl.ln s tr . a nd Me t h ., 1977. vo l . 145 , p .91 . 5 . Popovi c i M. , Sto ica A.D. , Baj or ek A. Ac t a Cryst. , 1975 ,

A31, p . 197. 6. r YHAOpMH H.A ., Hasap oB B.M . OHHH, P3- 80- 721 , ny6Ha, 1980 . 7. Ba con G. E. Ne u t ro n Diffract ion . Cl a r end on Pr e s s , Ox fo r d ,

1967. 8 . Hatz W. Di s s e rt ati o n A. Tec h . Un iv . Dr e sden , 1978 .

PYKOnM Cb noc Tyn Mn a B HSAaTenb CK Hf1 OTAen 17 a npen R 1985 r OAa.

12

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nHTEPA TY PA

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110 Il pel-lC H If upone r-a R o6pa THoil r eONe TplfH 11 3 pe ax Tope lillP-2

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Ne T pa no n pC I-18 1l11 nponeru II oGpaTlloH J' e OMeTpHIl AJIR n evnpvr-or-o

lIeKO rcnen ruor -o p ac c eanus He(ITpOJlOB. 3K cnepIINeHTaJlbJlble xapax­

Te p l l ('T IIKII lI p C "'CllllbIX p n cnpene neuan 5 bl CTPblX Ii Tep..lH"IeCKliX Ifeih­

P lll l oll lin 11 ..III YJlh l:1I0 M p e ax -r o p e lillP-2 II J1IIc1J OIum npH5J11UKalOTCR

1\ ')Ml ll lpll'lL''' ''.111-1 J!JYIIKlllHIM. c1JYHKJ.UIH nporrycxauna C HCTeH MOHOX pO­

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"ro IllYI IIlllIII I"(' illl : IJIII 'l'II 'l c CKII Bbl"lHCJlJlT b 50JlbUlHHCTB O HHTerpanOD

CBcpTK l 1 II 111'11 111 1( 11 11 P WIJlcWCIIIIR.

Pa (SO T .1 1I1.IIIOJlIII 'lI d 11 Jln6o pa To p lfH lIeHTpoHIIOH t;1f31fKIf OllRll.

COOOlI\eHHe OO'bC!A1l1le llllnro HIICTHTYT8 RJIepKhlX HccneJIOB8HHA . lly15H8 1985

Ilepe uon O. C. Tl ll l l ll" llilJ\ lI l1u i

Hlihl e E., rllfld N., POp l!SCU II. P3-85-279 Re so l.u t i on 1 ~lJl1 rti"n o f the Neutron Time-Or -Flight Spec t r ome t o r In Geometry at the IBR-2 ReactorIn v erse

The n'f1l1 I U l i n ll function of the t imc-of r-f l i.ght s pec t r o­mete r fill i m l n a i. i r: neutron sca t te r i ng to i nv e r se geomet ry a t the IIlK' rvur- t.o r , is ca Lcu l a t cd . JrNR, U sing e m p i r ic a l

f u nct illlll' I II I' t lu- rneu s u r ed t i me d i s t r i bu t iO I1" of fa s t li nd t he rmn l i . :l'd nv ut r on s and the Cr a m- Cha r l i e r r-a pp r'nx i ma t i o n fo r t he I r llll ,md~f1 ilJ n l unr t ion 0 1 till! mono. h r mn. r t i z i n j; uy s t.em ,

nppr-u rmos t III II ,, ' r o uv u l u t i o n i n t. egr a l s i uj; in t h e r eao l u­

t i on lune t jll i l (~nn he c a l r-u l n t e d una l y ! i r u l l v ,

'1'1,,' inVI"Hij\,1 Iio ll I1ml h" " 11 p, · rl nlnlt'd II I the l.abu r u t o r y ()I Nl'1I1 r uu l' hv s i cu , I I NIt.

CoDlDun ica t i o n o f thr Joint t n s r l t ut « r Rcs~prch. Dubnn 1985


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