1. X-ray spectroscopy Repetition, exercises and more
MENA3100,OBK,

2. XRF is not in the curriculum, but the text is written so that it is difficult to define sections that can be excluded. Paragraphs that only treat XRF can be skipped.

3. X-ray spectroscopy spectroscopy, n. spectrum, n.
The art of using the spectroscope; that branch of science which involves the use of the spectroscope. In mod. use, the investigation of spectra by any of various instruments.
spectrum, n.
3 a. The coloured band into which a beam of light is decomposed by means of a prism or diffraction grating. Also, a dark band containing bright lines produced similarly; such a (coloured or dark) band, or the pattern of lines in it, as characteristic of the light source; hence, the pattern of absorption or emission of light or other electromagnetic radiation over any range of wavelengths exhibited by a body or substance.
3b. The entire range of wavelengths (or frequencies) of electromagnetic radiation, from the longest radio waves to the shortest gamma rays of which the range of visible light is only a small part; any one part of this larger range.
3c. An actual or notional arrangement of the component parts of any phenomenon according to frequency, energy, mass, or the like. Cf. mass spectrum n., power n.1

4. X-ray spectroscopy Have to detect the X-rays:
Energy-dispersive spectroscopy
EDS
Wavelength-dispersive spectroscopy
WDS

5. Spectroscopy with incident x-rays and with incident electrons
Johan Taftø:
Spectroscopy with incident x-rays and with incident electrons
Will be posted on our web-page

6. Wavelength-dispersive spectroscopy WDS
Microprobe
(Mikrosonde)
Sequential

7. Energy-dispersive spectroscopy
Energy-dispersive X-ray spectroscopy (EDS, EDX, or XEDS)
Energy dispersive X-ray analysis (EDXA)
Energy dispersive X-ray microanalysis (EDXMA)
Energy dispersive analysis of X-rays (EDAX)

8. Energy-dispersive spectroscopy EDS
Si(Li) detectors
Silicon drift detectors SDD
Simultaneous

10. Si(Li) detectors
An electron-hole pair is created for every 3.76 eV of incoming X radiation
The energy of a Ni Kα X-ray photon is 7,471 keV
Will produce a current of electrons

11. Signal vs. noise
Dead time

12. Sum peak
Escape peak

13. Accelerating voltage:
Exceed the critical ionization energy of the element by a factor of 1.5 to 3 to efficiently excite the X-ray line
Interaction volume

15. Dictates the working distance

16. Energy dispersive spectroscopy EDS
Characteristic X-rays
Qualitative analysis

17. Ce Fe Sr

19. Line scan
100 m
5 m
NiO
LaNbO4 a)

20. Spot analysis

21. Quantitative analysis
The ratios are just the starting point
ZAF

22. Flat samples
Not too small!