GALIPIX3D
Extending the range of solid-state pixel detectors

THE BEST IN CLASS DETECTOR FOR HARDRADIATION APPLICATIONS AND MORE ...
The GaliPIX 3D is Malvern Panalytical’s high end X-ray detector for diffraction, scattering and imaging instruments.
It is designed for advanced studies of materials, for applications requiring the use of hard radiation, e.g. Pair
Distribution Function, Computed Tomography or Transmission measurement through either absorbing samples
loaded in capillaries or thick samples such as batteries, it will also provide excellent results with softer radiation,such as Cu or Co.

With the combination of very small pixels (60 microns),
a CdTe sensor and an overall sensor with dimensionsof 30.06 mm x 24.16 mm on one single chip, GaliPIX 3D
provides users with cutting edge for their research.
The high-quality CdTe sensor results in unrivalled stopping
power for X-rays, with close to 100% efficiency even forthe highest energy radiations available on laboratory
instruments, like the ones provided by Ag and Mo
anodes. Below some examples of data collected using theGaliPIX 3D detector.

Hyper-speed full pattern snapshot (33° 2θ with Ag radiation,equivalent to ~100°2θ with Cu radiation) recorded in just
2 seconds.

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2D SAXS (left) and 2D WAXS (right) of Silver behenate
using Cu radiation.

Four complete charge-discharge cycles of a commercial prismaticbattery cell, measured with Ag radiation (5 minutes per scan,
14 hours total measuring time).

Absorption comparison

Nano-spinel ZnAl2O4
Empyrean (Mo)

5100,00%0Empyrean (Ag)480,00%0Absorption [%]ID31 @ESRF

5032101CdTe - 650µm
Si - 300µm

60,00%

Si - 500µm
Si - 1000µm

40,00%

ID11 @ESRF

20,00%05101520

Scattering vector Q [Å-1]Reduced structure function - F(Q) data from the Empyrean
equipped with a GaliPIX3D, with Mo and Ag radiations, and thedata from ESRF synchrotron.

The GaliPIX 3D makes use of technology that was initiallydeveloped with space exploration in mind. It is theresult of a collaboration between Pixirad, a spin-offof INFN (Italian Institute of Nuclear Physics), NASA(National Aeronautics and Space Administration) andASI (Italian Space Agency). The technology will belaunched into space in 2020 for the IXPE (Imaging X-ray
Polarimetry Explorer) mission.
This large ASIC with very small pixels, combined witha CdTe sensor for 100% efficiency for hard radiation,
has great potential. Therefore, Malvern Panalyticalhas started a collaboration with Pixirad, to create theGaliPIX 3D detector for the flagship Empyrean systems.
In 2017, Malvern Panalytical acquired the Pixirad
technology, ensuring exclusivity of the technology.

250,00%5101520Energy [keV]

2530Absorption of Si and CdTe sensors for different energies,
with the CdTe having a 100% absorption up to very high energies.

Technical specifications: GaliPIX3D
Window size

30.06 mm x 24.16 mm

Efficiency Cu Kα

100% (same for Mo and Ag)

99% Linearity range

0 – 3.9 x 109 cps – Overall
0 – 7.8 x 106 cps – Column

Energy resolution around Cu Kα

25%

Maximum count rate

2.4 x 1011 cps – Overall
4.7 x 108 cps – Column

Maximum background<6 cps – Overall

Active length

30.06

Total number of pixels

501 x 465 = 232965

Pixel size

60 μm

Smallest step size0.0018º 2θ at 240 mm
goniometer radiusSupported wavelengths

Ag, Mo, Cu (Co upon request)

Point spread function

1 pixel (FWHM)

Technology developed for space explorations... in yourEmpyrean diffractometer.

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Copyright: © 2019 Malvern Panalytical. This publication or any portion thereof may not be copied or transmitted without our express written permission. PN12050

F(Q) [Å-1]2