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 Results for DC.creator="A." AND DC.creator="Fitch" in section 2.2.4 of volume H
Energy-dispersive instruments
Fitch, A.  International Tables for Crystallography (2019). Vol. H, Section 2.2.4.3, pp. 59-60 [ doi:10.1107/97809553602060000937 ]
... instruments 2.2.4.3. Energy-dispersive instruments The broad, continuous spectrum from a wiggler or bending magnet is suitable for energy-dispersive diffraction ... an energy-dispersive diffraction arrangement. The detector usually consists of a cryogenically cooled semiconducting Ge diode. An absorbed X-ray photon ... photon is determined. The powder-diffraction pattern is recorded as a function of energy (typically somewhere within the range 10- ...

Debye-Scherrer instruments
Fitch, A.  International Tables for Crystallography (2019). Vol. H, Section 2.2.4.2, pp. 58-59 [ doi:10.1107/97809553602060000937 ]
... Scherrer instruments 2.2.4.2. Debye-Scherrer instruments The simplest diffractometer has a receiving slit at a convenient distance from the sample in front of a point detector such as a scintillation counter. The height ...

Hart-Parrish design
Fitch, A.  International Tables for Crystallography (2019). Vol. H, Section 2.2.4.1.2, p. 58 [ doi:10.1107/97809553602060000937 ]
Hart-Parrish design 2.2.4.1.2. Hart-Parrish design A variant of the parallel-beam scheme replaces the analyser crystal with a set of long, fine Soller collimators (Parrish et al., 1986 ... Collins et al., 1992 ) (Fig. 2.2.12 ). The collimators define a true angle of diffraction, but with lower 2[theta] ...

Angular resolution
Fitch, A.  International Tables for Crystallography (2019). Vol. H, Section 2.2.4.1.1, pp. 57-58 [ doi:10.1107/97809553602060000937 ]
... 2003 ; Gozzo et al., 2006 ) have discussed the resolution of a synchrotron-based diffractometer equipped with a double-crystal monochromator and an analyser crystal. The most usual ... at half-maximum (FWHM) as the real distributions, and considering a powder as a crystal with an infinite mosaic spread. ...

Parallel-beam instruments
Fitch, A.  International Tables for Crystallography (2019). Vol. H, Section 2.2.4.1, pp. 56-58 [ doi:10.1107/97809553602060000937 ]
... incident beam is diffracted by the sample and passes via a perfect analyser crystal [such as Si or Ge(111)] to the detector. The analyser crystal defines a very narrow angular acceptance for the diffracted radiation, determined by ... through the desired range of 2[theta] angles either in a step-scan mode or continuously, reading out at very ...

Diffractometers
Fitch, A.  International Tables for Crystallography (2019). Vol. H, Section 2.2.4, pp. 56-60 [ doi:10.1107/97809553602060000937 ]
... beamlines are angle dispersive, operating with monochromatic radiation. When scanning a detector arm or employing a curved position-sensitive detector (PSD), detection is normally in the ... the diffracted beam means that the intensity is reduced by a factor of cos22[theta], going to zero at 2[ ...

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