Coverage

The single crystal suite of instruments is distinguished by large area position sensitive detectors.

Reciprocal space

A visual illustration of the coverage in reciprocal space can be shown for both monochromatic and white beam instruments. In the case of fixed incident wavelength, the sample is rotated through some angle to “extrude” the detector face through reciprocal space. Conversely, for Laue-type instruments, the finite bandwidth gives rise to a volume of space spanned between the two wavelength limits.

DEMAND

DEMAND: example of reciprocal space coverage over a 180° sample rotation with incident wavelength of 1.54 Å.

WAND²

WAND²: example of reciprocal space coverage over a 180° sample rotation with incident wavelength of 1.54 Å.

IMAGINE

IMAGINE: example of reciprocal space coverage covering 2 to 4.5 Å wavelength band.

MANDI

MANDI: example of reciprocal space coverage covering 2 to 4 Å wavelength band.

TOPAZ

TOPAZ: example of reciprocal space coverage covering 0.3 to 3.5 Å wavelength band.

CORELLI

CORELLI: example of reciprocal space coverage covering 0.6 to 2.5 Å wavelength band.

SNAP

SNAP: example of reciprocal space coverage covering 0.5 to 3.65 Å wavelength band.

Solid angle and scattering angle

The detector coverage can also be visualized in terms of solid angle per unit area (neglecting complicated pixel shapes) and scattering angle.

DEMAND

DEMAND: solid angle and scattering angle coverage with three-column Anger camers at 30°.

WAND²

WAND²: solid angle and scattering angle coverage with eight banks of ³He wires.

IMAGINE

IMAGINE: solid angle and scattering angle coverage of the image plate.

MANDI

MANDI: solid angle and scattering angle coverage of all 41 Anger cameras.

TOPAZ

TOPAZ: solid angle and scattering angle coverage of all 25 Anger cameras.

CORELLI

CORELLI: solid angle and scattering angle coverage of all 76 ³He tube sixteenpacks.

SNAP

SNAP: solid angle and scattering angle coverage of all 18 Anger cameras at 105°.