5.2 $B#X@~2s@^K!$N1~MQ(B

Next: 5.3 $BJ4Kv#X@~2s@^$K$h$k2r@ONc(B Up: 5 $B#X@~2s@^K!$N7k>=9=B$2r@O$X$N1~MQ(B Previous: 5.1 $B#X@~$NH/@8(B

5.2 $B#X@~2s@^K!$N1~MQ(B

$B#X@~2s@^K!$N5.6$B$K<($9$h$&$K!"FHN)$K2sE>$9$k2sE><4$rM-$9$k@:L)B,Dj5!$N0l$D$G$"$k!#$3$l$i$N2sE><4$r47=,$H$7$F$=$l$>$l(B $\omega$ $B<4$*$h$S#2(B $\theta$ $B<4$H8F$V!#DL>o$K$O&X<4$K$OJ4Kv;nNA$,%;%C%H$5$l$?J?HD>u$N;nNA%[%k%@!<$,$B<4$K$O;6Mp#X@~6/EYB,DjMQ$N%+%&%s%?!<$,$B$H$7$F!"$=$l$>$l(B $\omega$ $B<4$,(B $\theta$ $B2sE>$9$k$H!"#2(B $\theta$ $B<4$O#2(B $\theta$ $B2sE>$9$k$h$&$K@_7W$5$l$F$$$k!#(B

**$B?^(B 5.6:**
$\includegraphics[width =.75\linewidth]{s7.epsf}$

$BJ4Kv7k>=;nNA$K$*$1$k2s@^6/EY$N0lHL<0$O!"(B

$\begin{displaymath} I=\vert F\vert^2 p \biggl(\frac{1+cos^22\theta}{2sin^2\theta... ...ta}\biggl)\frac{1}{2\mu}(1-e^\frac{-2\mu t}{sin\theta})e^{-2M} \end{displaymath}$

(5.1)

$B$GM?$($i$l$k!#$3$3$G!"(B $\vert F\vert^2$ $B$O9=B$0x;R!"(B$B$OB?=EEY0x;R!" $\frac{1}{2\mu}(1-e^\frac{-2\mu t}{sin\theta})$ $B$O5[<}0x;R$G$"$k$,!";nNA$,==J,8|$$$H$-$K$O;6Mp3Q$K0MB8$;$:0lDjCM$H$J$k!#$^$?%G%P%$(B-$B%o!<%i!<0x;R(B $e^{-2M}$ $B$O!"#X@~$N86;R;6Mp0x;R$K1F6A$9$k$,!"DL>o$NAjBP6/EY$N;;=P$G$O>JN,$9$k$3$H$,B?$$!#$7$?$,$C$F!"<0(B(5.1)$B$K4p$E$$$F!"BP>]$H$J$kJ4Kv#X@~7k>=;nNA$N2s@^%T!<%/$NAjBP6/EY$rDjNLE*$K8+@Q$b$k$3$H$,$G$-$k!#3F9`$K$D$$$F$N$h$j>\$7$$@bL@$r0J2<$K5-$9!#(B

$B9=B$0x;R(B
$B!!9=B$2r@O$r9T$&:]$K!"B,Dj%G!<%?$H7W;;CM$rHf3S$9$k>e$G:G$b4pK\$H$J$k0x;R$G$"$j!"(B$BH?

$\begin{displaymath} F_{hkl}=\sum_{j=1}^{N}f_je^{-2\pi i(hu_j+kv_j+lw_j)} \end{displaymath}$

$B$GM?$($i$l$k!#$3$3$G!"(B$B$OC10LK&Fb$N(Bj$BHVL\$N86;R$N86;R;6Mp0x;R!"(B$B$O(B$BHVL\$N86;R0LCV$r3J;RDj?t$rC10L$H$7$FI=$7$?:BI8!"(B$B$OC10LK&Fb$N86;R$N?t$G$"$k!#(B
$BJP8w0x;R(B
$B!!;nNA$K$h$C$F2s@^$5$l$?#X@~$N6/EY$O!"4QB,$9$kJ}8~$K?bD>$JLL$X$NF~h$GI=$9$3$H$,$G$-$k!#JP8w0x;R$O!"$3$NEj1F@.J,$H6/EY$N4X78$+$i5a$a$k$3$H$,$G$-$k!#(B
$BB?=EEY0x;R(B
$B!!LL4V3V$,F1$8$G$+$DF1$89=B$0x;R$r<($9$,!"J}0L$N0[$J$k7k>=LL$N?t$rI=$9!#$?$H$($P!"N)J}>=$N(B{100}$B$NB?=EEY0x;R$O!"(B, , , $(\overline{1}00)$ , $(0\overline{1}0)$ , $(00\overline{1})$ $B$H$J$j#6$G$"$k!#(B
$B%m!<%l%s%D0x;R(B $B!!%V%i%C%0$N>r7o$rK~B-$9$k;6Mp6/EY$O!"0lHL$K?^(B5.7$B$N$h$&$K3H$,$j$r$b$A!"$3$N6J@~$N2<$NItJ,$NLL@Q$K$h$C$FM?$($i$l$k6/EY$r@QJ,6/EY$H8F$V!#$3$l$O!"F~$B$N;03Q4X?t$r4^$`<0$GI=$5$l$k$N$G!";6Mp3Q$K0MB8$9$k!#$9$J$o$A!"@QJ,6/EY$K5"Ce$5$l$kBN@Q$OB,Dj$9$k7k>=LL$K$h$C$F0[$J$C$?;6Mp3Q(B2 $\theta$ $B$H$J$k$?$a!"0[$J$k7k>=LL$+$i$N;6Mp6/EY$rHf3S$9$k>l9g$K$O!"$3$NE@$r9MN8$9$kI,MW$,$"$j!"$3$N1F6A$r$^$H$a$?$b$N$r%m!<%l%s%D0x;R$r$$$&!#(B

$B?^(B 5.7:

$\includegraphics[width =.75\linewidth]{s8.epsf}$
$B5[<}0x;R(B
$B$3$l$O!"F)2a8w$KBP$9$k5[<}Jd@5$r<($90x;R$G$"$k!#?^(B5.8$B$K<($9Hy>.BN@Q$+$i$N;6Mp$r9M$($k!#$3$3$G!"%G%#%U%i%/%H%a!<%?$G$O!"(B $\gamma = \beta = \theta$ $B$G$"$k$+$i!"(B $\frac{1}{2\mu}(1-e^{-\frac{2\mu t}{sin\theta}})$ $B$,F3$+$l$k!#;nNA8|$5$,==J,$J>l9g$K$O!"(B $t\rightarrow\infty$ $B$H$_$J$;$k$+$i!"(B $\frac{1}{2\mu}$ $B$H$J$k!#(B

$B?^(B 5.8:

$\includegraphics[width =.75\linewidth]{s9.epsf}$
$B%G%P%$(B-$B%o!<%i!<0x;R(B
$B86;R$NG.?6F0$K$h$j!"#X@~$N;6Mp?6I}$,;6Mp3Q$H$H$b$K8:?j$9$k8z2L$r<($9!#(B $\<u^2\>$ $B$r86;RLL$NH?$JJ}8~$X$NJQ0L$N(B2$B>h$NJ?6Q$H$9$k$H!"(B

$\begin{displaymath} M=8\pi^2\<u^2\>(\frac{sin\theta}{\lambda}^2)=B(\frac{sin\theta}{\lambda}^2) \end{displaymath}$ (5.2)

$B$H=q$1!"#B$O29EY0x;R$H8F$P$l$k!#(B