idt
instrument design technology
Beamline Engineering Excellence
Quad Diode* & Fluorescent Screen BPM
The IDT quad diode beam position monitor is designed for use in monochromatic beam,
and consists of a motor-
Downstream of the foil selector are 4 diodes for intensity and beam position measurements from radiation scattered off the foils. The quad diode BPM can be used to provide positional feedback to piezos installed in upstream monochromators and mirrors.
- Quad diode system for intensity & beam position measurements.
- Rotatable foil selector with wide energy range 4keV -
25keV. - Nickel, chromium, titanium & copper foils.
- Ultra-
flat foils with sub- µm thickness. - Built-
in fluorescent YAG screen with high resolution CCD camera & optics for beam imaging. - EPICS driver for CCD camera.
- Fast positional feedback to primary optical components.
- Focus & align beam using optical components.
- Can be integrated with Secondary Source Aperture for mono beam viewing at secondary source.
- Mounted on an ultra stable granite block with a measured amplification factor of 1.0.
Far Left: Quad diode & secondary source aperture assembly installed on XFM beamline at the Australian Synchrotron.
Left: Focused undulator beam image on YAG crystal viewed using CCD camera.
* not for sale in the USA
