Synchrotron radiation and beamlines at 3rd generation synchrotrons

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• Heribert Wilhelm, Diamond Light Source Ltd.
• Monday 02 March 2015, 15:30-16:30
• Mott Seminar Room (531), Cavendish Laboratory, Department of Physics.

If you have a question about this talk, please contact Helen Verrechia.

The deviation of the refractive index from unity, n=1- in the X-ray regime is related to the scattering properties of the medium, mainly the electron density. It will be shown that  is of the order of 10-5 which implies that X-rays will be reflected externally for gracing incident angles below a critical angle. This aspect is used to manufacture focussing devices for X-rays. These main components of a synchrotron beamline are able to focus X-rays down to a few tens of nanometre. Some examples are discussed as well as the principle of a monochromator, another indispensable device for most experiments. The basics of how X-rays are generated by different insertion devices and how the characteristic parameters of a synchrotron might set limits for an experiment are also discussed. This understanding is essential for many experiments to optimize the measurement.

This talk is part of the Quantum Matter Seminar series.

This talk is included in these lists:

• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• Centre for Health Leadership and Enterprise
• Featured lists
• ME Seminar
• Mott Seminar Room (531), Cavendish Laboratory, Department of Physics
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• Quantum Matter Seminar
• School of Physical Sciences
• Thin Film Magnetic Talks

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