Characterization and data collection on a direct-coupled CCD X-ray detector

Náday, I.; Westbrook, Edwin M.; Westbrook, Mary L.; Travis, D.; Stanton, Martin; Phillips, W. A.; O'Mara, Daniel M.; Xie, Juanhui

doi:10.1016/0168-9002(94)90814-1

Cited by 22 publications

(10 citation statements)

References 14 publications

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“…A number of X-ray area detector characterization reports can be found in the literature. Here are only a few examples: fiber-optic tapered CCD (Naday et al, 1994;Phillips et al, 2002), lens-coupled CCD (Koch, 1994;Moy, 1994), integrating pixel arrays (Glasser et al, 1996;Rossi et al, 1999), photon-counting pixel arrays (Ponchut et al, 2005), amorphous silicon flat panel (Granfors et al, 2001). Example of image blemishes specification.…”

Section: Detector Characterization Examplesmentioning

confidence: 99%

Characterization of X-ray area detectors for synchrotron beamlines

Ponchut¹

2006

J Synchrotron Rad

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In order to deal with the problem of quantitative and consistent evaluation of two-dimensional X-ray detectors at synchrotron beamlines, the methodology for X-ray area detector characterization is reviewed. It is based on the definition of a minimum yet complete set of imaging parameters able to describe any kind of two-dimensional detector regardless of its operating range, field of application and detecting principle. Measuring and derivation methods are reviewed for each parameter. Imaging parameters are to a large extent directly exploitable to assess the performance of a detector for any scientific application. Imaging characterization aims at helping two-dimensional detector developers and two-dimensional detector users in defining or choosing the device best suited for a given application, based on quantitative arguments.

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Section: Detector Characterization Examplesmentioning

confidence: 99%

Characterization of X-ray area detectors for synchrotron beamlines

Ponchut¹

2006

J Synchrotron Rad

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“…Phosphor-coupled CCD arrays are a well-established technology for x-ray imaging [1,2,3,4]. These detectors typically employ one of two well known conventional scintillators, Gd 2 O 2 S:Tb [5] or CsI [6], to convert the incident xray flux to visible photons which are then optically demagnified onto a CCD image sensor [3,4,5].…”

Section: Introductionmentioning

confidence: 99%

Scintillators for high efficiency and high spatial resolution in x-ray imaging applications

et al. 2004

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“…Multiple-CCD detectors for diffraction applications have been built recently by research groups and commercial manufacturers (Naday et al, 1995;Suzuki et al, 1999; Area Detector Systems Corp., Poway, CA, USA; Molecular Structure Corp./Rigaku, The Woodlands, TX, USA; Oxford Instruments, Oxford, UK). Detectors with smaller areas, employing a single CCD and taper, but otherwise using the same technology, have been built by research groups (Tate et al, 1995;Naday et al, 1994;Stanton et al, 1994) and are now being produced commercially by several companies and are in use for macromolecular crystallography studies at a number of institutions and synchrotron facilities.…”

Section: Introductionmentioning

confidence: 99%

Multiple CCD detector for macromolecular X-ray crystallography

et al. 2000

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A charge-coupled device (CCD)-based detector designed for macromolecular crystallography is described. The detector has an area of 200 Â 200 mm, a readout time of 1.6 s, and total noise equivalent to approximately three 12 keV X-ray photons per pixel. The detector is constructed from a 2 Â 2 array of four identical units, each unit consisting of a 4.1:1 demagnifying ®ber-optic taper bonded to a 1 k Â 1 k, 24 mm pixel, CCD sensor. Each CCD is read out in parallel though four channels and digitized to 16 bits. A Gd 2 O 2 S phosphor Xray-to-light converter bonded to an aluminized-plastic ®lm is held in contact with the input surfaces of the ®ber-optic tapers with an air pillow. The full width at half-maximum (FWHM) of the point response function is 120 mm, the response is linear to better than 1% over the entire range of intensity from background to nearly full well, the gain is 3.4 e per 8 keV incident X-ray photon, the noise is 12.6 e per pixel for a 10 s integration time, the modulation transfer function (MTF) is 0.35 at 5 line pairs (lp) mm À1 (the Nyquest frequency), and the measured detective quantum ef®ciency (DQE) is 0.74 for relatively strong Bragg peaks. Data collected from crystallographic studies with synchrotron radiation are presented. In an anomalous difference Patterson map for a data set collected in 40 min on a monoclinic myoglobin crystal, the magnitude of the Fe± Fe peaks is 18 times the standard uncertainty of the map.

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Characterization and data collection on a direct-coupled CCD X-ray detector

Cited by 22 publications

References 14 publications

Characterization of X-ray area detectors for synchrotron beamlines

Characterization of X-ray area detectors for synchrotron beamlines

Scintillators for high efficiency and high spatial resolution in x-ray imaging applications

Multiple CCD detector for macromolecular X-ray crystallography

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