Fik for Body Centered Cubic Atom coordinate(s)u,v,w: -0,0,0 -2,v2,v2. Fw=尼2m0+e2的 Fh=f1+e+t+） When +k+l is even Fi=non-zero-reflection. When++/is odd F=0-no reflection. 16
16
bcc-Fe(Im3m) 59530 之a-46取■d-151■州-201054 =1.5406A (110 29765 200 211 220 60 70 0 20 17
bcc-Fe (Im3m) 2 (110) (200) (211) (220) =1.5406Å 17