1 / 25

(0,0)

a*. b*. REAL LATTICE. a. b. RECIPROCAL LATTICE. ( 3,1 ). ( 2,1 ). (1,1). (0,1). (0,0). a*. b*. (0,0). a. b. RECIPROCAL LATTICE. ( 3,1 ). ( 2,1 ). (1,1). (0,1). length=1/d 0,1. (0,1) planes. REAL LATTICE. a*. b*. a. b. RECIPROCAL LATTICE. ( 3,1 ). ( 2,1 ).

karim
Download Presentation

(0,0)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. a* b* REAL LATTICE a b RECIPROCAL LATTICE (3,1) (2,1) (1,1) (0,1) (0,0)

  2. a* b* (0,0) a b RECIPROCAL LATTICE (3,1) (2,1) (1,1) (0,1) length=1/d0,1 (0,1) planes REAL LATTICE

  3. a* b* a b RECIPROCAL LATTICE (3,1) (2,1) length is longer than (0,1) since spacing between (1,1) planes is smaller. (1,1) (0,1) length=1/d1,1 REAL LATTICE (0,0) (1,1) planes

  4. a* b* a b RECIPROCAL LATTICE (3,1) (2,1) (1,1) (0,1) length=1/d2,1 REAL LATTICE (0,0) (2,1) planes

  5. a* b* a b RECIPROCAL LATTICE (3,1) (2,1) (1,1) (0,1) length=1/d3,1 REAL LATTICE (0,0) (3,1) planes

  6. a* b* a b RECIPROCAL LATTICE (3,1) (2,1) (1,1) (0,1) (0,1) planes REAL LATTICE (0,0) (1,1) planes (2,1) planes (3,1) planes

  7. a* b* a b RECIPROCAL LATTICE (0,2) (3,1) (2,1) (1,1) (0,1) length=1/d0,2 (0,2) planes REAL LATTICE (0,0)

  8. a* b* a b RECIPROCAL LATTICE (1,2) (0,2) (3,1) (2,1) (1,1) (0,1) length=1/d1,2 REAL LATTICE (0,0) (1,2) planes

  9. a* b* a b RECIPROCAL LATTICE (2,2) (1,2) (0,2) (3,1) (2,1) (1,1) (0,1) length=1/d2,2 REAL LATTICE (0,0) (2,2) planes

  10. a* b* a b RECIPROCAL LATTICE (3,2) (2,2) (1,2) (0,2) (3,1) (2,1) (1,1) (0,1) length=1/d3,2 REAL LATTICE (0,0) (3,2) planes

  11. a* b* a b RECIPROCAL LATTICE (3,2) (2,2) (1,2) (0,2) (3,1) (2,1) (1,1) (0,1) (0,1) planes REAL LATTICE (0,2) planes (0,0) (0,0) (0,0) (0,0) (0,0) (1,1) planes (1,2) planes (2,1) planes (2,2) planes (3,1) planes (3,2) planes

  12. How do we orient the crystal to observe diffraction from the (0,1) reflection? a* b* (0,0) a b RECIPROCAL LATTICE (3,1) (2,1) (1,1) (0,1) length=1/d0,1 (0,1) planes REAL LATTICE

  13. (0,0) q nl=2dsinq Bragg condition-- upper beam has to be an integral number of wavelengths from the lower beam for constructive interference. (0,1) planes

  14. (3,1) (2,1) (1,1) (0,1) (0,0) (0,0) q nl=2dsinq (0,1) planes

  15. (3,1) (2,1) (0,0) (1,1) (0,1) (0,0) (1,1) planes

  16. (3,1) (2,1) (1,1) (0,1) (0,0) (0,0) (2,1) planes

  17. Oscillation Angle The 3 diffraction images below were recorded from the same crystal using the same X-ray wavelength, but different oscillation angles. Underneath each image write inthe corresponding oscillation angle. The choices are 0.10°, 1.00°, and 5.00°. B A C

  18. Time The 3 diffraction images below were recorded from the same crystal using the same X-ray wavelength, but different lengths of exposure. Underneath each image write in the corresponding length of exposure. The choices are 12 s, 60 s, and 300 s. B A C

  19. Distance The 3 diffraction images below were recorded from the same crystal using the same X-ray wavelength, but different crystal-to-detector distances. Underneath each image write inthe corresponding crystal-to-detector distance. (80, 250, or 450 mm) A B C

  20. C C C name DISTANCE: The 3 diffraction images below were recorded from the same crystal using the same X-ray wavelength, but different crystal-to-detector distances. On each image write inthe corresponding crystal-to-detector distance. The choices are 80, 250, or 450 mm. TIME: The 3 diffraction images below were recorded from the same crystal using the same X-ray wavelength, but different lengths of exposure. On each image write in the corresponding length of exposure. The choices are 12 s, 60 s, and 300 s. OSCILLATION ANGLE: The 3 diffraction images below were recorded from the same crystal using the same X-ray wavelength, but different oscillation angles. On each image write inthe corresponding oscillation angle. The choices are 0.10°, 1.00°, and 5.00°. B B B A A A

More Related