Products: Quad-RO Indirect Detection

image of Quad-RO Indirect Detection

Large-Format CCD Cameras for X-Ray Diffraction Imaging

Princeton Instruments, the world’s leading developer and supplier of ultra-low-noise, deep-cooled scientific CCD cameras, is pleased to offer our popular Quad-RO series for indirect imaging of x-rays. Using a variety of phosphor screens, these thermoelectrically cooled, large-image-area, 4-readout-port cameras delivers optimized performance and impressive application flexibility in the x-ray energy range from ~3 KeV to >20 KeV.

  • Front-illuminated CCD with 2084 x 2084 pixel array and 24 x 24 µm pixels resolution with  24 x 24 µm pixel size (ITO technology)
  • Sensitivity in X-ray energy range from ~ 3 KeV to >
    20 KeV
  • Industry-standard FireWire interface
  • Multiple-port readout for high frame rates
  • Unique mechanical design for easy phosphor replacement
  • Full experiment control via 64-bit LightField software (optional)



See the big picture (and all the little details) with our
Quad-RO system’s fiberoptically coupled 4-megapixel detector. The unique mechanical design of this single-head camera allows easy phosphor replacement in the field — GdOS:Tb phosphor screens optimized for 8, 12, and 17 keV x-ray energies are available. Applications include x-ray diffraction, x-ray crystallography, x-ray microtomography, x-ray phase contrast imaging, streak tube readout, and x-ray medical and industrial imaging.

Simulated fluid streamlines through the pore space in a coral. Image courtesy of Dr. Tim Senden, ANU, Canberra, Australia.
Sensitivity in X-ray energy range from ~ 3 KeV to 20 KeV:
  • Covers wide variety of applications
wavelength coverage
Unique phosphor replacement design delivers:
  • Flexibility to exchange phosphors in the field to optimize camera performance to match X-ray energy
Flexible Four-amplifier readout design delivers:
  • Ultimate flexibility to optimize system performance
  • Lowest possible read noise at high readout speed
  • Highest dynamic range
  • Best Linearity
image sensor
Four-amplifier architecture of the CCD device
High-speed, Firewire interface:
  • Industry standard computer interface without the need for additional hardware
  • Seamless plug-and-play connectivity with the latest desktops and laptops
  • True 16-bit data transfer at 4 MHz (4 port readout, 1 MHz per output port)


Powerful 64-bit software delivers:
  • Intutive and cutting edge user interface
  • Easily automates background, flatfield and defect correction
  • Universal programming interface - PICAM (64 bit) - for easy custom programming



Quad-RO Indirect Detection X-Ray Camera models and datasheets

Model Imaging Array Pixel Size Energy Range
(3.5 kev - > 150kev
QE at 550 nm
4320 datasheet pdf 2084x2084 24 x 24 µm Optimized using
custom scintillator


Streak Tube Readout
Streak tube readout is commonly used to obtain intensity vs. spatial or spectral information over time periods of picoseconds to nanoseconds.

Micro-Computed Tomography
Micro Computer Tomography is a unique technique for the noninvasive, nondestructive 3D characterization of materials down to a micrometer scale.

Application Notes

X-ray µCT provides nondestructive, high-resolution 3D imaging for research and industrial applications
X-ray computed microtomography uses high-resolution, widedynamic- range CCD cameras, high-resolution scintillators, either synchrotron x-ray sources or microfocus x-ray tubes, and software algorithms designed to reconstruct 3D images.

X-ray Phase-Contrast Imaging
Early-stage tumors and associated vascularization can be visualized via x-ray phase-contrast imaging.

Articles Published Using PI Equipment

An all-optical Compton source for single-exposure x-ray imaging
Researchers from CNRS—Ecole Polytechnique—Université Paris-Saclay, France and Centro de Laseres Pulsados, Parque Cientfico, Salamanca, Spain incorporated a Quad-RO x-ray camera in their experimental setup to present results on a single-pulse scheme that uses a plasma mirror to reflect the drive beam of a laser plasma accelerator and to make it collide with the highly-relativistic electrons in its wake.


X-Ray Camera Brochure
Comprehensive information on direct and indirect X-ray detection technologies from Princeton Instruments. Includes related application and technical notes.


Product Manuals
Download operation manuals for Princeton Instruments cameras, spectrometers, and accessories from our ftp site.

LightField Scientific Imaging & Spectroscopy Software

LightField Scientific Imaging & Spectroscopy Software

Ground breaking software to control your Princeton Instruments systems. Now with Windows 10 support. It's like nothing you have ever experienced!

Princeton Instruments