X-ray or gamma ray systems or devices – Specific application – Fluorescence
Reexamination Certificate
2011-07-19
2011-07-19
Song, Hoon (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Fluorescence
C378S070000
Reexamination Certificate
active
07983386
ABSTRACT:
An apparatus for carrying out both x-ray diffraction (XRD) and x-ray fluorescence (XRF) analysis of a crystalline sample. A sample holder is located within an evacuable chamber. An x-ray fluorescence source and separate x-ray diffraction source are mounted within the evacuable chamber. An XRF detection arrangement is also provided, for detecting secondary x-rays emitted from the surface of the crystalline sample as a result of illumination by x-rays from the said x-ray fluorescence source. An XRD detection arrangement is then provided for detecting x-rays of a characteristic wavelength which have been diffracted by the crystalline sample. A moveable XRD support assembly is provided, comprising a first part configured to mount the XRD source for relative movement between the XRD source and the sample holder, and a second part configured to mount the XRD detection arrangement for relative movement between the XRD detection arrangement and the sample holder.
REFERENCES:
patent: 2006/0088139 (2006-04-01), Nakano et al.
Bonzon Michel
Negro Pierre-Yves
Yellepeddi Ravisekhar
Katz Charles B.
Song Hoon
Thermo Fisher Scientific Inc.
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