The thermal focusing mirror of the ESRF Troika beam line: principle, design and first results

Authors
Mattenet, M Abernathy, D Zontone, F Detlefs, C Grubel, G Facchini, M Jacquot, P
Citation
M. Mattenet et al., The thermal focusing mirror of the ESRF Troika beam line: principle, design and first results, NUCL INST A, 467, 2001, pp. 305-308
Citations number
5
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
467
Year of publication
2001
Part
1
Pages
305 - 308
Database
ISI
SICI code
0168-9002(20010721)467:<305:TTFMOT>2.0.ZU;2-M
Abstract
We describe a focussing mirror system that is bent by differential thermal expansion due to a temperature gradient perpendicular to its surface. Tempe rature control is achieved through a side cooling arrangement on the top, a nd a heating device at the bottom of the mirror body. We present measuremen ts of the optical properties obtained by speckle interferometry on a test s ystem, and under actual operating conditions in the white undulator beam. ( C) 2001 Elsevier Science B.V. All rights reserved.