ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
Two different setups for imaging an undulator source in the x-ray range have been tested. In the first, two circular Bragg–Fesnel lenses (BFL) were combined to form a telescope. The second consisted of one circular BFL and an asymmetrically cut crystal which produced vertical magnification. The emittance of the electron beam ε can then be deduced from the measured size of the source σ and the knowledge of the beta function at the source: ε=σ2/β. Effects were observed due, on the one hand, to the small aperture of the BFL and, on the other hand, to the angular emission pattern from an undulator. © 1995 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1145775
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