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Použití rengenofluorescenční analýzy Tomáš Čechák

Použití rengenofluorescenční analýzy Tomáš Čechák. Evropský sociální fond Praha & EU: Investujeme do vaší budoucnosti. Pro projekt „Cesta k vědě“ (veda.gymjs.net) vytvořil T. Čechák (tomas.cechak@fjfi.cvut.cz). Modifikace a šíření dokumentu podléhá licenci CC-BY-SA.

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Použití rengenofluorescenční analýzy Tomáš Čechák

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  1. Použití rengenofluorescenční analýzy Tomáš Čechák Evropský sociální fond Praha & EU: Investujeme do vaší budoucnosti Pro projekt „Cesta k vědě“ (veda.gymjs.net) vytvořil T. Čechák (tomas.cechak@fjfi.cvut.cz). Modifikace a šíření dokumentu podléhá licenci CC-BY-SA.

  2. The four science instruments, on the robotic arm are: The Microscopic Imagerprovides close-up images of rocks and soil The Mössbauer Spectrometeranalyzes the iron in rocks and soil The Alpha Particle X-Ray Spectrometer analyzes the elemental composition of rocks and soil The Rock Abrasion Tool (RAT)grinds away the outer surface of rock to expose fresh material The forearm also holds a small brush so that the Rock Abrasion Tool can spin against it to "brush its teeth" and rid the grinding tool of any leftover pieces of rock before its next bite

  3. Simplified outline of orbitals in the electron shell

  4. Energy dependence of characteristic radiation spectral lines on Z

  5. Moseley law E = K (Z - b)2

  6. Energy K spectral lines

  7. Radioisotope gamma and X-ray sources

  8. Radioisotope beta-exited X-ray sources .

  9. X - ray spectrum from 55Fe

  10. X - ray spectrum from 238Pu

  11. X-ray spectrum from 241Am

  12. X - ray spectrum from 3H/Zr

  13. X - ray spectra from calibration variable energy source 3837LA            Amersham

  14. Example of typical sources

  15. Mo, 20 kV,

  16. Mo, 30 kV,

  17. Mo, 40 kV,

  18. Mo, 30 kV, 2 mm Al

  19. Mo, 30 kV 0 mm 2 mm Al

  20. Rh, 20 kV,

  21. Rh, 40 kV,

  22. W, 100 kV,

  23. Spectrum of characteristic radiation exited in a coal sample

  24. Spectrum of characteristic radiation exited from a black paint on a fresco( medieval painting )

  25. Spectrum of characteristic radiation exited from a black paint on a fresco ( 19. century)

  26. XRF spectrum of the red pigments on the fresco on the Karlstejn castle Red pigment used in the 14th century was the mixture of Vermilion, Saturn Red and Red Ochres. Red Ochres with Chinese White was used as a red pigment in the 19th century.

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