发明名称 |
Method and apparatus for performing X-ray analysis of a sample |
摘要 |
The invention provides an apparatus and a method of performing X-ray diffraction (XRD) and/or X-ray fluorescence (XRF) analysis of a sample, comprising: irradiating a sample with X-rays from an X-ray source; providing a combined XRD and XRF detection arrangement comprising a scanning wavelength selector and at least one X-ray detector for detecting X-rays selected by the wavelength selector; and performing XRD analysis of the sample by selecting at least one fixed wavelength of X-rays diffracted by the sample using the scanning wavelength selector and detecting X-rays of the selected fixed wavelength(s) at one or more values of the diffraction angle φ at the sample using the X-ray detector(s); and/or performing XRF analysis of the sample by scanning wavelengths of X-rays emitted by the sample using the scanning wavelength selector and detecting X-rays of the scanned wavelengths using the X-ray detector(s). |
申请公布号 |
US9031187(B2) |
申请公布日期 |
2015.05.12 |
申请号 |
US201013515939 |
申请日期 |
2010.12.13 |
申请人 |
Thermo Fisher Scientific (Ecublens) SARL |
发明人 |
Yellepeddi Ravisekhar;Negro Pierre-Yves |
分类号 |
G01N23/223;G01N23/207 |
主分类号 |
G01N23/223 |
代理机构 |
|
代理人 |
Stewart Gordon |
主权项 |
1. A method of performing X-ray diffraction (XRD) and/or X-ray fluorescence (XRF) analysis of a sample, comprising:
irradiating a sample with X-rays from a polychromatic X-ray source; providing a combined XRD and XRF detection arrangement that is sequential x-ray detection channel comprising a scanning wavelength selector for sequentially scanning a wavelength range for XRF measurements and at least one X-ray detector for detecting X-rays selected by the scanning wavelength selector, wherein the X-ray source and the sequential x-ray detection channel are housed together with the sample inside a chamber that is capable of being evacuated and/or flushed with gas that is substantially spectrally transparent at the wavelength to be detected; and performing XRD analysis of the sample by selecting at least one fixed wavelength of X-rays diffracted by the sample using the scanning wavelength selector and detecting X-rays of the selected fixed wavelength(s) at one or more values of the diffraction angle φ at the sample using the X-ray detector(s); and/or performing XRF analysis of the sample by sequentially scanning wavelengths of X-rays emitted by the sample using the scanning wavelength selector and detecting X-rays of the scanned wavelengths using the X-ray detector(s). |
地址 |
Ecublens CH |