Open AccessAdaptive Silicon Monochromators for High‐Power Insertion Devices. Tests at CHESS, ESRF and HASYLAB
Author(s) -
Quintana J. P.,
Hart M.,
Bilderback D.,
Henderson C.,
Richter D.,
Setterston T.,
White J.,
Hauserman D.,
Krumrey M.,
SchulteSchrepping H.
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/s090904959400957x
Subject(s) - synchrotron , synchrotron radiation , optics , advanced photon source , beam (structure) , physics , particle accelerator , materials science
X‐ray wigglers which produce tens of kilowatts of photon power within the white beam will soon become available at third‐generation sources of synchrotron radiation. Insertion devices that produce several kilowatts already exist and we have used those at CHESS, ESRF and HASYLAB to test adaptive 111 silicon water‐jet‐cooled monochromators at up to 2 kW total incident beam power. This development from earlier work at the Brookhaven National Synchrotron Light Source (NSLS) uses the pressure in the water coolant to provide active compensation of the strain field in the thermal footprint, nulling its effect to within residual variations in Bragg angle of only a few arc s. The design is robust, vacuum compatible and uses no moving mechanical parts.