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Advanced X-Ray Instrumentation Overview

Explore the intricacies of X-ray instrumentation, from generating X-rays using various mechanisms to detecting them with advanced detectors like solid-state SiLi devices. Delve into the world of synchrotrons and their role in producing extremely bright X-ray beams with low divergence. Learn about different types of X-ray detectors and stay abreast of cutting-edge technologies in the field.

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Advanced X-Ray Instrumentation Overview

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  1. Instrumentation - making & detecting x-rays Read Roe - Chap 2 through 2.5.1 (ignore neutrons)

  2. Instrumentation - making x-rays 'Laboratory’ x-ray tubes - rotating anodes Same mechanism for x-ray production - different anode setup

  3. Instrumentation - making x-rays 'Laboratory’ x-ray tubes - rotating anodes Same mechanism for x-ray production - different anode setup Focal spot spread out over cylinder surface Tube power up to 20X that of Coolidge tube

  4. Instrumentation - making x-rays Synchrotron Electrons or positrons injected into ring

  5. Instrumentation - making x-rays Synchrotron Electrons or positrons injected into ring Where charged particle stream is bent, x-rays are emitted

  6. Instrumentation - making x-rays Synchrotron Electrons or positrons injected into ring Where charged particle stream is bent, x-rays are emitted X-ray beam: extremely bright very tiny low divergence - < milliradian in ring plane

  7. Instrumentation - making x-rays Synchrotron Electrons or positrons injected into ring Where charged particle stream is bent, x-rays are emitted X-ray beam: extremely bright very tiny low divergence - < milliradian broad spectrum in ring plane

  8. Instrumentation - making x-rays Synchrotron Electrons or positrons injected into ring Where charged particle stream is bent, x-rays are emitted X-ray beam: extremely bright very tiny low divergence - < milliradian broad spectrum in ring plane Can choose any  in 0.1-10 Å using incident beam monochromator Monochromator often focusing type

  9. Instrumentation - making x-rays Synchrotron Electrons or positrons injected into ring Where charged particle stream is bent, x-rays are emitted X-ray beam: extremely bright very tiny low divergence - < milliradian broad spectrum in ring plane Can choose any  in 0.1-10 Å using incident beam monochromator Monochromator often focusing type Can tune  for absorption by specific atoms in specimen

  10. Instrumentation - making x-rays Synchrotron

  11. Instrumentation - making x-rays Synchrotron

  12. Instrumentation - making x-rays Synchrotron

  13. Instrumentation - x-ray detectors Point - requires scan Scintillation counter x-rays converted to light

  14. Instrumentation - x-ray detectors Point - requires scan Scintillation counter x-rays converted to light Solid state (SiLi) detector x-rays ––> electron- hole pairs

  15. Instrumentation - x-ray detectors Point - requires scan Scintillation counter x-rays converted to light Solid state (SiLi) detector x-rays ––> electron- hole pairs very high resolution very low noise dead time problem liq N2 temp required

  16. Instrumentation - x-ray detectors Linear - may require scan, depending on instrument

  17. Instrumentation - x-ray detectors Area Film - old technology still used, especially Polaroid

  18. Instrumentation - x-ray detectors Area Film - old technology still used, especially Polaroid CCD

  19. Instrumentation - x-ray detectors Area Film - old technology still used, especially Polaroid CCD Multiwire

  20. Instrumentation - x-ray detectors Area Film - old technology still used, especially Polaroid CCD Multiwire Image ‘plates’ (BaBrF:Eu+2)

  21. Instrumentation - x-ray detectors Area Film - old technology still used, especially Polaroid CCD Multiwire Image ‘plates’ (BaBrF:Eu+2)

  22. Instrumentation - x-ray detectors Area Film - old technology still used, especially Polaroid CCD Multiwire Image ‘plates’ (BaBrF:Eu+2)

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