Title Quadrupole Effects in NMR Spectra on Short-Lived β-Radioactive Nuclei, 12B and 12N Author ...

144 Pages·2012·13.59 MB·English

Quadrupole Effects in NMR Spectra on Short-Lived
Title
β-Radioactive Nuclei, 12B and 12N
Author(s) Minamisono, Tadanori
Citation
Issue Date
Text Version ETD
URL http://hdl.handle.net/11094/2423
DOI
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Note
Osaka University Knowledge Archive : OUKA
https://ir.library.osaka-u.ac.jp/repo/ouka/all/
Osaka University
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respectively and impianted ln polJrcrystalline stmiples of bee metais, TiBa ana,.ZrBx' .
,' "gre studied. The nttelear polariuation wes pTeBervef.1 by use of the preeervation '
, '
' whtie field and monitored by the resultant asyimetric 15-decay. The initial
pelarisatlan of reÅëoiled nuclei at a reaetion angle ef 30 degrees were .v16-% at
the ,incident energies E(d') x l.43 MeV and E(3He) z 5.8 heV for respective reaetione.
In order to observe the quadrupole effeets in NMLR spectra, a frequency modu-
,.i,',,F`:,d.rf,fLi::.OX.;,,lgllllXbl.':.Ii:,,.haddi:,be,.2r.Z'ilg;eg,b:ea.,:l.:.,`h.e..e.Xpe,CAIaZi,e,.ll,lllnl"',,
•J '`'- {m '12B and 12N implanted in bec rretals showed elear cmpateristics of the quadrupole
interaction, which indicated the interstitial sites of the impianted eleTnents in :

t h e b Å ë a n e t a l s o f w h i e h a t v c e Bm a i 1sNn2 d.w 1e!hr6e chibesaevr!ieedr compared with .
IP.::'.aIkre.a,ril,lkme.d.lll'l,:.III,gf,hhe.lgru,".;,ll,.a.;f.q.":gr;s/ole,fiige:t::'l,h:e,tt.:te
which were' Å}n ag!Bement yith the results frQn} the,e -decay clata. The resilts' on .
quadrupole coupling constants sTe i(la(]2B in ra)---- 3eqQ12 m (2a2 t lo)kHz, JZt5<
` l2B in iib) = (Jos Å}, u)kHz, %(12B in Mo) x (ls6Å} 26)kHz, ,Z,(3L<i2B in w) s (s4oL
4o)kHz, ,(,la(l2N.in Ta) at (o.gl to.12)TcHz, and Za6(12N in Nb) s (oeg6 Å}o.u)maze
Large differenees ani(mg the coup]ing conBtants were fcnihd, i.e. ehe field gradient
a c t e d o n -i.24B' t .i.n tik' r!Rtai of thevtth grcrup in the periodic t.a, bie was aimoet twiee

l a r g e r t h a n t h a t i n '" tthe uatal ef the Vth greun in the same per.iod, and the field
{pa"ient aeted (m i2N<vth tpelinp> tfi a metai of Vrh group vere s .y io times iarger
than that scted on i2B(urth"greup). , , .• '
I n o r d e r t o d e t e m t in e t h e n u Bvee, lmeaera squureardnreunptsowlee rme cment of ,.
-ge, eq,,Tl,l2j ,1..,.41.z oi ,uptch 7.uyri,l .11.eleouptirg conafmts on i). .,. Vll.i.. 1, IT,,,..,,r,,,1,'",• ,.it
' ";t'/
i1"',' i' ' 'j' .l 1 .' 'r'd-i-6in. it'w Fa's7 "el ee'ltlal' i hl.l' /th,e ',.,,.dn ,'.,'i2b .Ll,, ..,., ,',.,tm u,'1 :'.1" lll'lll-)iil iii,''titli/ 't.A i•//i: 11:'".t i;lliJill'l"';i" .-.' ' ,.•'' L;r"•ld Trl:".:l/;.l' .J
B in the sarnples so that the known internal fieid was effedtitie. fhe B"bStitution
' vae supported by the fact thav .the ratio of the field gedienis whie}i ac,pa. d on I2B. '
was tn agreement vith the known zatio on 11B. fthe resulte are Va(i2B in"lit!iBDti
(231t 24)kHz, and Ua(12B in zrB2)=(74Å} 7)kHz. cemparisega Nith known cchpMrig
cchetants on 1]B gives the ratio of the quadrupoie mortsents to be lQ<i2B)IQ(ilB)l s

O . 4 2 Å } O . 0 4 . T h e k n o i m v a l u e o f t h B e1 1q y tu e a i d sr u tp b o eil eq umaodnrnunpto olef
moNent to be IQ(i2B)l a (o.olsi '.t' oecoizl.) barne. ,
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J"• -' '
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, •"" 21 IO UN I I L I [ N! E S o m t ! 1 ! R H l ! :/ ' 'o . E p o X P U 'E R l 'I eI Et E T I N t'TIAoL "n!E: !!!,H O.D. . ' • . • ' " ," ' ' 4 - b - ' . t' 1" ' /",'i lt't, /"''.t ':"''',,,. L
. r t t . tt. ' ,'el. i
, 1- '3 Nlg. l,. ept SHORT-LIVED e-RI[DIOACTme NUCIE:• , '7 , ,,- "'
. -1
b " 'l l l. l i . C i ? i e f " th " .f '` ! , h i :e h e w l Z i9 ' h ' ' ', '1'.'•'.'1i t/t ttt ÅÄ
., , 7.,, , ••
, , ., /g / t 1 4 ' ,..' `,s., . 'i •
ttt tt ttt
e )' ier-equency Medulation of the rf Field ./" ' ,. 16' •, •. •'.
'tt' ti '-
d ) A p p l S c a t itosn/ ef the hethod"
- • 1 7'tt,t• •.•
4 E L E C t ! ! R I C Q U At t tD R U P O L E I N T E 'RACTrON ru H;GH )CAGNET I C . , i Pt a J ,X • v M/ ' . / 1- . ' , tt ;' .t. at'litl , //;
' lg ",i ''' /1''''''i •'''
' a) 'Syzasnetric F,ie,ld Gredient - . -
. tttt .,,. ' to''sr r/1'f- '/.. ''.i•'fl,.
t t '
b)- Asym}betric liiieid Gradient ' ..'
' r•'t ' . 2 t - •. }, t r - 1tt'',
c) NMR Spectra . '
' / t t ' t /' t tt't
i) Single Crystal Pattern' , . . 2 1' ,
" . iD Poly erysul PatteTn . . - 2 2 • t/l'•.
'5',

' R a l i' }) e O P Io L s I M s t i P tb M l ' e I ' C ' S i !r itA e T'sIC opft 'the Recoii.Nuclei ' `" M i 3 . ' t .' 4 t , t .'t , ' . .'t ' t. 'v . tv ,-,t','-.t.,.,
] • • , t gtt • i ) ? a c e - C e n t e r e d - C' ubie MDtal, '' • ' • N1 s s . L ' ',• ,; , ,' " ,t , ' /t ,• , .,t ' .t,' .i 't.,'t '.1
ii) Body-Centered-eubic Mets) ' '
i s i )' YIB2 and 2rB2 Cases, . 5 8 t t ' t ' .t ' tl rt ;.t ' 'tt''"'
b ) E l e c t r i e P i e i d G r ,a x d t.it,e.nt ,. , , u ,'
3 9 , '' . . ' tt 1 1,,•' ,' i'••'
t.;t t-. . -t 6, 'E P . C P ' E R [ P C E N ' T ' A v L A P P A R A Lt''fl!US AND.PRocSDURE ,.•--' ,•• -• - . 4 , i . T 1 , , , , , , t . { , '. .1 1t •, . - ,.,) '1,i,,
i''/ 1;
' ' 1 a) . py Qanc ti on ot peiarszad i2B :,anpt. ;9N, Nue iedi :.:-'.l1,'i.',I'111•-ii•iltl-i',.,,
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j b , ') ' D a t q . , A c c u i lL } l a t i c n a n d I ts C' ontrol System r. './
.t t ' '1 ; { 'r ii• •- ;• "'' "ii ii: ''i i', •J ji' 1 1i ,:/ 'i, '., ,. ,•,i/i;l/il/
.c) bspa"'Mttins .,• ''
1.
1• - -•
:7 EXPERImama11, RlwtIUPS ' ,. ''.

' ' a ) 1 i t ; c p e r t i p e . . n , t o/ nt t f ft ct the tals .T . . i "N -" " '•tli i'll' '1 'll iilii ii"'1 11 11 1i";1.1 11 tillil.itiillltl;t'1 1il tll'l".l/.l'/ illitltiiil'i i'llltl'lil/'i'i'llliii/liiiill;lil'i,L,s/;
l••' , 't ,. ' '', Y1 . i+' ' l - ' '- , ,;'hr .,' '. 'L1 /1 -s,. 't '. 't'S /,1' u''1 '1' :' .-'e iii ", ' 1 [
., ' /P. lt,i' '/t't,lt, .,/,', '. ,/'l ,i' .,', :1 1'.' ',, '' . . ,
11::,ili'.'llllii,ll,./L"'.',,';.,".'.1)il'ill'I''ii(1,1',';;;'i',/,t/' ..i..r•,,'.'/lsilw'1,•.-i' 1' .11•1'••l1',;lll.1, '','f'.
"'
. . ' r 'l i. F ts "..ei-b ';r' ",' I'
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r ,
66
b) •E:xperinent on bec hetals ,
' 12 X,,
e) Qua(tupele Moment of B 72
8 pls(xssrcus mo
"- '9 SUN!IARY on THE RESULrS U5
ACXNOWIEosaxENT 118
RE FEREPifcaS }i9
mnICES
A Cptacimapole-rnteraction Hami]tonean i
B- Dipelar Broadening Caicuiation ii
C Res(mant Destruction of Polarization iv
D Appra)timation of the Center-Pea]c Heights in the
Quacirupoie Spectra v
E Range Spectrum of the Implanted Nuclei vii
P Extreme Points of the Eiectric Petential in bce erystal vi"
G rlett Chart of a bota Analysis' Pr'ogrun ix •.
a ,g Plov chart of a beta accumulation hogram x
s•?
I betail", of the Experimen.tdl System
X' l
'
,
, ,
•,v-' '
vt
X.
' t,V --
, .• tt;I

' ' . T t ,t , , 1 ' ' - 1' , - '. " , . 1 ' ,' , . ' 1 . - . . '1 Y - l -.. '. ,...,,•, .. ... , ., :,, IS'
•rl. .''',• ' ,yi]
'
,, '' Xx : ...' L,', t '' ' f' '1 -'" 'g,',l'1
• -- t. ttt ttt./t-
.s l .
Tabie T 7 - 1 E s } x p b e r . . ' m •l e h t ' a sl l i -n e . , s , h •' t a p . 'e . ' , i -n' ' tf c • 'c. '.m 'k' t'e t stS a tl.s ' " . .' '.. }'rc'-79 .,.,,/1.-
. , ; ' ,",' •,. 1' "rt •,t:' ,r. i'td/ij'l-.
7 - 2 m b o i a r b r o a d e n i n g , •tt , '; . ,.. r:•' ''•, •'' .{•B9 ' ••- '5•,i..t,
1.. •,. , t ' ., .3,:.,
illi"iL/(///Pll,II,2//1//lllliLoi5el,,s•/}//".//.,,//i,ik.//[f•/////.111i-,i.//,;."i/i8,O/l•iiif;;//.,-,ttt,,.. fi ; - i.:r/. gt'#s .it t' '.t"
;• • , i t •• , Y ., , / J /'• t•l i.•ll /r•i'lrl/,,:/
,., ,, ' 'r, ','1,,,I'I ,",i,.
'1 ,
t tt t t - . '-t tt- t-t .t tt:l"j
-,d i' ..- .
. tYTIt:lr'i
s - ,' ,:,c}1 / lFt
1 ,t /4 //
-1,
'7 - 7 A i2 B • in 'l i, II 2 !? r .8 . g e , d z . ,) 2 ( iz d k t •o ) 'd , e 6 E •o> "' x1' ''''i•t '' ' L ' igZ. '' ,1''1;
• : I', ",-
/,' r
v-i- :1
" d ` Z z X r k s t l e )'eo.3 ,h4/as =>sl? ' ''ue1,.,'' i'' ':.{''1' . s
;-ge'uB<-' kiB' ,O .t -]..-
-, '. ,`,.
t-d ,. -'' , . 'i' 'jf/i
.N.
ti
s•-i fil-decay data af i2B and i2N ii4
e-2 Nuclear guadrupole moreents of boron ieotopes 114
8 i Z f [ l; a , 1 : r } / e x g . i e t t ! 4 n t 2 x , , , : f a 2 • x : ; l x " e n o d d , , (. , '.! S 2 i '` ,t]t,.,t"y,c.itrva,&,,,ts..Ii,`-. stt
.
'.-.
I.' - t .L..t {,"• ./ .1' l

B - i ' a ` z r . ; 6 . ' i ' , .' , ,'•' 1 t t t -t ttt ttt
B-2 Nurnerical values used in tne calculati(m of dipolar tt
b r o a d e n in g ( f c c ) .t t ' .t t t• s'
'
B - 3 N u m e r i c a l v a l u e s u s e d i n t h e c a ']cu]ation of dipolar
' breadening. (beC) • .
'D - 1 A p p r o x i m a t i o n o f t h e c e n t e r - p' eak he"ght in the quad]il}ole
'
-;
spectra .
' '
'
-.
t . t,(
; 4t
tt
eV"
' r. ; J( ; ;i, ir '. ,,. ,. .//, Il, .,
r'.t-,i
. • ''' '-' g' .'i '' 'I ''.S IJ 1'•1 ' .,1 ,:.. i./11I'1 ', 11 •; .. i•.•,111 ••• ii-' ,,.. 1i ,i, ,.fl.-1•[ ., Tl '1 ';• ,, ,.,,,... ,,.,'' ,-:""i-,)-1' /IIIti.•1.b-.•1•/,••lii,
''t
-''i' .`'•i '' i' '', .,.'' '' ,/ l,,1 ''ll.."''' '" 1"" :l '•` .'1 ,, ,. ,, ,,.
' ''t
-,./
'
' . v , . , ,. ' e ,e ',
ri n x 6/ s . ' ' '.1 ' '.,/ / .' .'" : .t 1t .1.t I', 1 t". ' Itk,Il -,1t,t ,', ' 1. 1 , iti.i=, ',"/ . ,'[t' '.' .,.. ,e,i 'r ''1 '',, l t ' , .t1
s
,. . i i , , : - - 1 p'1ig/.
•2,.1, }intperimantai arrsngenent '.,. .• J.. -• ,'• tytt..
tt ttt tt
3-1 kriod of the nveiear pro(luc"op. apqLPpartiC19 90untig ...' . ' k '.,'
15. "j ''
tr li`111i•-'i':,ci;•i••i,::hihi://"'{,i.ilA,;//R/•f{i/111kll`:,i-'l'1.,i;rll/iti:,i/t,eiill'.,,,I////,111'r//i,',,,/1/li;ii/,tt//r••,.. i l"1 •"',;' '.,•', /i/,-1'il/'g ..,•e••1,•11,ili'11; ''lll,i
'i '"'v•
'
{t'x ''i' i',.1t./ . ;,•• bV1'i
l• ••.-
. . il t,it •"h •t/ x 6' I''' ' r./"t•,'"/"''i' t,g,
/-t t /tt ••

2 4 ' 1) ' ' •" t t". ',tt 'i '. t ;,` , ' • ' ',t l- ' • /iit-'t' .' il." ,, .,
L .' S .J//
29., .•'t.',,';,',g
•2." i. :.ol,' :;is"::: ::,f:: ,`2 g; 2Xz; O,•,ix,' - ,',,'•,'i-•, i'1//- i,/1. 'I'-3e •.'', .,:,s,

t , t t t t ' ' ; 1, t.--', .' "t'tt/1
.,,31- ,., '1.'. '' ",',., '' 11111'
l
l. ' 5 - l • R a n g e s p e e t r'um of the implanted..nu61e,i '"' '. ,' -;' ,,,'' '!55 ,I.i''' "'''':''../;,1'' :i"1'
/5-2, Prcibable sites (fce) ' ' .• / '" p a ,' ' ' '- . L•,,t-' v't'1,l 1
+'' •t '
'5-3 ' Probable sites (bec) 5 7 '
5`-4 Sphere about ths nuclear site - 4 t t ot , l , 1 ,. . - / s s t. ',- J,,
' ' ' "46'' ,,. ,,
,6-1 Beim trunsport ayetem ,•
.,r t .1 6 " 2 T a ' r i g e t a n d ' t a r g ' et holder ' " ' 4 '7' ./., ,"; "" e•,'' 1t' 't:I' Tt'8 -'"'{' ''/

• f i - S A T a r 'g e t c h a m b e 'trt t' ,• 4 8 ' " , ''• 'i ii" ' • z '' "" " i','/i/1'•'
,t ' .t
6'5B Target chamber . ` 49 i. s-
6-4 Receii angle----- recoil energy relaticm (12B) '
se -
'
6'5 Recoil angle--•- reeou energy reiation (12N)
5 1 .t,tst
F.{
6-6 CouPies af Si(Li) detectors t
5 2' ..
6 - • 7 h l s e b e ig h t . s p e c t n ; m o Å í t b e e tp }t,tiolee ' 5 t3tt ,, i,1.,,.,
6-8 Glypical time spectrum of'the P -c(nmtiag fr(m l?B ,' -J•.s 1
ss' ,. r-
6 - 9 l b r p i c' e l' t i a s s p e c t m h o f t'he fii-ecnmting freN 12N ', ' 5' 5". t"' r,i '2i L•
6-10 Energy dependence of the'nuclear polarization (X2B)
56 ,. .
6-n Energy dependence of the maelear poiarization (12ig) 57•
' ' '
6-.12 Recoil stopper and its hoidsr . ' 5s t.,
' )tt.
- v i " '"•
'
t t t ' t r t' t/'.
' '
"-, lt 1/'
ttt"/.
.. .' .'t-/':' ,'/ ./ t,/;'r .' ",./-',: i- rt/ ', '4i'" ;'.' 1' ' "Å}' ' ••l ,xN, ,/' , c. . .,'i. , .',;,. /;,/p ta.e.1.J."•s'tf'•-ii,t li-2k2

i.j ''s 1 g• '' a. . l1 6 ,o / 1 j 31 , ,I ' ' k , ;- 1 , , 16 • S, .{ .i '." a, li le . 1 b 1 .p1 te, l-i i'., Fa lIl I'fi l ' ,t1g .tl-.'l' ., l-htI.lt1,' , ,'. :t"t</.i' i1S.'i',"'t ' '.'1Ie•1/'1,i1' .•.-. '. i-• '-/ ,r.• l t t . "t .1t.s - ' ' ,i l •. t / ., t t tg s t ts t t.t t t / ,te/ , /t. i t.•ti /t t t..t"t.t- j+ ,:t.
" . ,- ptt/ 1t1 -t t1./•
, ,'/a/ bi'• -- ,tyt'' . t•;t -.,'1' ,l,
,' 'in' • 'r
Et.t
I ' ,,,fi"" Preguency deviatipm of the rf tield. •.kS9 tt .ltttt ttt t -tt t
i '1 . ./ /t, 'it iitl-lt/tltl,.s'l':'r)'i,//,X,.11,,l,:,9T/,g,:,{Oikii.lg/,i/'///j•9•ti/r.kl-;'?'tlt,i[.IF.f;',,,//•//,t•i/,,,1.i;/g••r`{•,
:,59 - t,,a '" -, r. ,'y• ' t ,1 •1 1 : i' ' •" -,/ ' .1./1-,1 •
,. ,,- /1,
' t1t .ti;,ifii9,, -• ,,,, ..; eil t.', s,, ::tr. :
." .sf ' -• . /iL"1 1/1 di r• "' , /. " • i'.if,t/ '1l'" '- '7 ,'' ','L'
t t J ttttt tt ;t . t-t.t ttt / / /t/ ., / t 't 1. ttt/at-,s lt//
,{.,, -, ,,.tl,
6g .,, /.`f.• ,,,'v," ,',VJ.
. 1 '' •1 '' ,,tlll ;i,"'t ' tt;
66-'l8g BTyi;ltilalZillltllle::!vhOf the f-iata accilrpfE,,e,fyi{m system ;-
•63 "
t t t t/t t ttt t t.t t;r.t•
,.l d.,' /,.t ti', . S't
" " ' '; ''`'' '' '''" ';f
;7-;21 'r'if ,t, it'ineteldq qinil rdeenpssintyd ednecpees hedce.t'nhcljtess)T aIRf ' twbied thN M(teRc) speetra (tee) ' ' - ' t,'t p'i T/t it st•t ; - • t' ut 4'.t'-,t -t;
tt
i
'''7-3 NM4 speetra en l?B'in fce metellg"'' ' , , ttt / f l ' ', ' 'l t' ':'
' 76 i . li i' . , •t.t ' -t,.il .•tt
7 '- 4 ' N i m s p ' e d t r a 'o n iq 'D ' i ' i n .'fee h,etals ' '
t L• ','•:t-1- -, •- lll
ab .t lg
'
7-5 Mgdulation diepen(tences of the N)IR intensity
i 8X
7-6 ciuadrupole speetre on 12B in Ta
,-.,ee .
7-7 (luadr'upele apsetrupi on 12B 'in Ta
es "t "{'
1 ' 7 n ' y 8 ' ( t u i s 'drupete gpeetre on 12B in-lgb ' t ' /1 1/ '" .''" ' t.'t/l'/: '':';'i
ec ' "'"re' ' ''' id
7•-91t Quttdrupole Bpectra on 12B in Mo -tt -tt t ttl
+ es- 1t t/ / t . t' ltt
'$ ri
' 1 . 7 7 - ' '9 .t 'Bl e Q Q , u a u d ar u dp o r ul e p s p e'l ce tr vs m p .eetne i2tBra in oMno 12B inv ' as ' ' t t t't t t't 't. t 'tt'
er
,t +. r i 7rT7,, Modu)ation abeek (i2N in Ai )
-- .88
7-14 Qsiadrupole speetra en 1251 in k
8 9 e-
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7 • - 1 5 Q u a d r t z p e l e s p e c t r a - Q,, n- i?N in Nb '
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7-ifs4 Quadrupoie speetra on i2B in bee netais <i2. lec},(e2Leeo )
96
7-16B Quadrupole gpectra on 12B in bcc metals ( CL?EC?laj({lrpO ) ttt I
or
7-l7A Quadrupole speat vu on ]?N in bcc netalg ({Z ltD `Zkva)
g8.
7-17B, Quadrupole spectra on iqN in bec ne'tals ( aib09<llkO) 't ' -t-
99,•;
7-18 Populations in the magnetic sublevels (12B)
1oo
7-19 Populations tn the:magnetie sublevels (12N)
1oo' '
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