idt

instrument design technology

Beamline Engineering Excellence

Copyright © 2018 Instrument Design Technology Ltd.

Sitemap

Career Opportunites

Privacy

Downloads

Double Laue-Crystal Monochromator

installed on the Imaging and Medical Beamline at the Australian Synchrotron

The Imaging & Medical Beamline Double Laue Monochromator, designed & built by IDT, is optimised for stability due to the very large sample-mono distance (>150m).

The monochromator is designed with a translating 1st crystal and a fixed 2nd crystal which acts as a fixed energy reference. The first crystal is mounted on a long linear slide with a straightness of ±15µm over 500mm travel.

Both crystals are mounted on highly repeatable vertical slides, with precision tilt cradles for roll alignment of crystals. The first crystal can be fully translated out of the beam to allow the white beam to pass.

Other features of the monochromator include:

• Energy range 16keV - 100keV.
• Asymmetric crystal using [111] and [113] reflections.
• Variable mono beam offset 20mm to 25mm.
• Indirect water cooling of first crystal.
• High precision, ultra-stiff rotary tables.
• Precision tilt cradle for roll alignment of Laue crystals.
• High vacuum level 1×10-7 mbar.
• Ultra stable base block of natural granite with measured amplification factor of 1.0.
• Stationary 2nd crystal acts as a fixed energy reference.
• Highly repeatable bending moment actuators.

Also see our page on Custom Engineered Slides for performance data of the long travel linear slide.