粉体行业在线展览
面议
248
Whereas flat crystals are used in sequence spectrometers, multichannel spectrometers principally employ
curved crystals.
The curvature of the crystals is selected in such a way that by applying slit optics the X-ray entrance slit is
focused by the curved crystal onto the exit slit. This allows higher intensities in a space-saving geometric
arrangement.
Different types of crystal curvature are used for focusing. The most commonly used are the curvatures
that follow a logarithmic spiral (Fig. 20a) and the Johansson curvature (including grinding) (Fig. 20b).
TH-F120
在线折光仪PRB21
ParticleX TC
FS500全谱直读光谱仪
CELL PAT
OES1000
TD5
Nanocoulter
XRF2601
CM-017