w********o
发帖数: 10088 | 1 theta-2 theta scan和 omega-2 theta scan是同一个东西么
2 theta scan测晶格常数的办法是不是只能用在粉末xrd上，单晶的可以用么
谢谢 | S**********9
发帖数: 217 | 2
They may be different depending on what people think about. Omega scan and
keeing 2 theta fixed is to check the crystal qualities.
theta 2theta scan can be used for both powder and single crystal. However,
for single crystal, one needs to use 4-circle diffractometer to get
appropriate geometry for the scans.
【在 w********o 的大作中提到】
: theta-2 theta scan和 omega-2 theta scan是同一个东西么
: 2 theta scan测晶格常数的办法是不是只能用在粉末xrd上，单晶的可以用么
: 谢谢
| w********o
发帖数: 10088 | 3 谢谢
我是看有的人测粉末的时候,只变动2 theta角度,出来很多峰,对应不同的hkl,然后算晶
格长度,我自己测单晶的时候,发现出不来那么多峰...
,
【在 S**********9 的大作中提到】
:
: They may be different depending on what people think about. Omega scan and
: keeing 2 theta fixed is to check the crystal qualities.
: theta 2theta scan can be used for both powder and single crystal. However,
: for single crystal, one needs to use 4-circle diffractometer to get
: appropriate geometry for the scans.
|
|
