Open AccessAdaptive Silicon Monochromators for High‐Power Wigglers; Design, Finite‐Element Analysis and Laboratory Tests
Author(s) -
Quintana J. P.,
Hart M.
Publication year - 1995
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049595004146
Subject(s) - finite element method , power (physics) , nuclear engineering , silicon , physics , optics , materials science , nuclear physics , engineering , structural engineering , optoelectronics , quantum mechanics
Multipole wigglers in storage rings already produce X‐ray power in the range up to a few kilowatts and planned devices at third‐generation facilities promise up to 30 kW. Although the power density at the monochromator position is an order of magnitude lower than that from undulators, the thermal strain field in the beam footprint can still cause severe loss of performance in X‐ray optical systems. For an optimized adaptive design, the results of finite‐element analysis are compared with double‐crystal rocking curves obtained with a laboratory X‐ray source and, in a second paper [Quintana, Hart, Bilderback, Henderson, Richter, Setterson, White, Hausermann, Krumrey & Schulte‐Schrepping (1995). J. Synchotron Rad. 2 , 1–5], successful tests at wiggler sources at CHESS and ESRF and in an undulator source at HASYLAB are reported.