## Elements of X-Ray Diffraction |

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Page 80

On this front, the electric vector of ray 2 has its maximum value at the instant

shown, but that of ray 3 is

these two imaginary components of the beam together, we find that beam 1 now

has ...

On this front, the electric vector of ray 2 has its maximum value at the instant

shown, but that of ray 3 is

**zero**. The two rays are therefore out of phase. If we addthese two imaginary components of the beam together, we find that beam 1 now

has ...

Page 98

The intensity of the beam diffracted aTanTangle 2#i is therefore

surface is (m — 1) wavelengths out of phase with ray C' from the surface plane.

The intensity of the beam diffracted aTanTangle 2#i is therefore

**zero**. It is also**zero**at an angle 262 where 02 is such that ray N' from the mth plane below thesurface is (m — 1) wavelengths out of phase with ray C' from the surface plane.

Page 146

5-8 and 5-9; as h approaches

from the value given by Eq. (5-4) to that given by Eq. (5-3) and the proportion of

parallel rays in the beam and the maximum convergence angle both approach

5-8 and 5-9; as h approaches

**zero**, the maximum divergence angle decreasesfrom the value given by Eq. (5-4) to that given by Eq. (5-3) and the proportion of

parallel rays in the beam and the maximum convergence angle both approach

**zero**...### What people are saying - Write a review

#### LibraryThing Review

User Review - ron_benson - LibraryThingExcellent reference book. Needs some updating in terms of advances in detector technology. Read full review

### Contents

PROPERTIES OF XRAYS | 1 |

THE GEOMETRY OF CRYSTALS | 29 |

THE DIRECTIONS OF DIFFRACTED BEAMS | 78 |

Copyright | |

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### Common terms and phrases

absorption coefficient absorption edge alloy atomic number austenite axes axis back-reflection Bragg angle Bragg law Bravais lattice calculated camera chart circle composition constant copper cos2 counter counting rate cubic curve Debye ring Debye-Scherrer decreases density determined diffracted beam diffraction lines diffraction pattern diffractometer direction distance electrons elements equation error example face-centered face-centered cubic factor film filter given grain hexagonal incident beam indices integrated intensity lattice parameter Laue method located martensite measured metal normal obtained orthorhombic parallel percent phase photograph pinhole plotted point lattice pole figure position powder pattern preferred orientation produced pulses rays reciprocal lattice reflecting planes relative rhombohedral rotation sample scattering shown in Fig sin2 6 values slit solid solution spacing specimen sphere stereographic projection stress structure substance surface symmetry temperature tetragonal thickness tion transmission twin twin band unit cell vector voltage wave wavelength x-ray diffraction x-ray tube zero zone