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Results for DC.creator="A." AND DC.creator="Fitch" in section 2.2.2 of volume H |
Tuning
International Tables for Crystallography (2018). Vol. H, Section 2.2.2.2.3, p. 54 [ doi:10.1107/97809553602060000937 ]
... to produce high intensity at the wavelength most suitable for a particular measurement. The smallest gap possible for a device depends on the design of the storage-ring vacuum ... in which the electrons circulate. It is difficult to have a vessel smaller than about 10mm high, and hence for ...
Undulators
International Tables for Crystallography (2018). Vol. H, Section 2.2.2.2.2, pp. 53-54 [ doi:10.1107/97809553602060000937 ]
... directions. Thus, the radiation from an undulator is concentrated into a central on-axis cone (fundamental and odd harmonics), surrounded by ... from higher-order even harmonics. The flux density arriving on a small sample from this central cone is therefore very high. ... interference also modifies the spectrum of the device, which has a series of harmonics derived from a fundamental energy. At ...
Wigglers
International Tables for Crystallography (2018). Vol. H, Section 2.2.2.2.1, p. 53 [ doi:10.1107/97809553602060000937 ]
... K is large (10 or above), the insertion device is a wiggler and the electrons oscillate with an amplitude significantly greater ... angle 1/[gamma]. Every oscillation along the device produces a burst of synchrotron radiation and these add together incoherently so ... of magnetic periods. The radiation emerges from the wiggler in a horizontal fan with a horizontal opening angle ~2K/[gamma] ...
Insertion devices
International Tables for Crystallography (2018). Vol. H, Section 2.2.2.2, pp. 53-54 [ doi:10.1107/97809553602060000937 ]
... types, termed `wigglers' and `undulators', illustrated in Fig. 2.2.5 . A wiggler has a relatively long magnetic period and the radiation from each oscillation is emitted like a series of powerful bending magnets, summing together to provide ...
Bending magnets
International Tables for Crystallography (2018). Vol. H, Section 2.2.2.1, pp. 52-53 [ doi:10.1107/97809553602060000937 ]
Bending magnets 2.2.2.1. Bending magnets A bending magnet provides a vertical magnetic field to deflect the electrons laterally in the horizontal plane from a straight-line trajectory, and thereby causes the emission of ...
Production of synchrotron radiation
International Tables for Crystallography (2018). Vol. H, Section 2.2.2, pp. 51-54 [ doi:10.1107/97809553602060000937 ]
... at relativistic speeds when they are accelerated to move in a curved trajectory. In a modern synchrotron facility dedicated to the production of X-ray beams for scientific experiments, electrons are circulated in a closed horizontal orbit in a storage ring at an ...
International Tables for Crystallography (2018). Vol. H, Section 2.2.2.2.3, p. 54 [ doi:10.1107/97809553602060000937 ]
... to produce high intensity at the wavelength most suitable for a particular measurement. The smallest gap possible for a device depends on the design of the storage-ring vacuum ... in which the electrons circulate. It is difficult to have a vessel smaller than about 10mm high, and hence for ...
Undulators
International Tables for Crystallography (2018). Vol. H, Section 2.2.2.2.2, pp. 53-54 [ doi:10.1107/97809553602060000937 ]
... directions. Thus, the radiation from an undulator is concentrated into a central on-axis cone (fundamental and odd harmonics), surrounded by ... from higher-order even harmonics. The flux density arriving on a small sample from this central cone is therefore very high. ... interference also modifies the spectrum of the device, which has a series of harmonics derived from a fundamental energy. At ...
Wigglers
International Tables for Crystallography (2018). Vol. H, Section 2.2.2.2.1, p. 53 [ doi:10.1107/97809553602060000937 ]
... K is large (10 or above), the insertion device is a wiggler and the electrons oscillate with an amplitude significantly greater ... angle 1/[gamma]. Every oscillation along the device produces a burst of synchrotron radiation and these add together incoherently so ... of magnetic periods. The radiation emerges from the wiggler in a horizontal fan with a horizontal opening angle ~2K/[gamma] ...
Insertion devices
International Tables for Crystallography (2018). Vol. H, Section 2.2.2.2, pp. 53-54 [ doi:10.1107/97809553602060000937 ]
... types, termed `wigglers' and `undulators', illustrated in Fig. 2.2.5 . A wiggler has a relatively long magnetic period and the radiation from each oscillation is emitted like a series of powerful bending magnets, summing together to provide ...
Bending magnets
International Tables for Crystallography (2018). Vol. H, Section 2.2.2.1, pp. 52-53 [ doi:10.1107/97809553602060000937 ]
Bending magnets 2.2.2.1. Bending magnets A bending magnet provides a vertical magnetic field to deflect the electrons laterally in the horizontal plane from a straight-line trajectory, and thereby causes the emission of ...
Production of synchrotron radiation
International Tables for Crystallography (2018). Vol. H, Section 2.2.2, pp. 51-54 [ doi:10.1107/97809553602060000937 ]
... at relativistic speeds when they are accelerated to move in a curved trajectory. In a modern synchrotron facility dedicated to the production of X-ray beams for scientific experiments, electrons are circulated in a closed horizontal orbit in a storage ring at an ...
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