The blade chamber: A solution for curved gaseous detectors

Ballon, J.; Comparat, V.; Pouxe, J.

doi:10.1016/0167-5087(83)90136-9

Cited by 91 publications

(72 citation statements)

References 5 publications

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“…Un instrument tel que D1B tire ainsi le meilleur profit de son multidétecteur [Convert 1975, Convert 1983 Il est temps de citer les articles de synthèse , Pannetier 1988] qui retracent les travaux pionniers en terme de diffusion de neutrons en temps réel et ont eu le mérite de révéler aux physiciens et chimistes du solide la puissance de la technique. Du point de vue des sources de rayons X de laboratoire, l'apparition de détecteurs à localisation spatiale développés à Grenoble [Ballon et al 1983] et commercialisés par la société INEL a permis le développement de la thermodiffractométrie dans les laboratoires de recherche. Ce type de détecteur permet l'acquisition simultanée d'un diagramme de poudre sur une zone angulaire de 120° (20).…”

Section: La Diffraction De Poudre In Situ Resolue En Tempsunclassified

Diffusion, diffraction des neutrons en temps réel et études réaliséesin situ

Isnard

2003

J. Phys. IV France

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propos à l'aide d'exemples pris dans des domaines scientifiques divers : électrochimie, magnétisme, métallurgie, chimie du solide. Après avoir présenté quelques repères méthodologiques sur les méthodes d'acquisition de données, des exemples montreront le fort potentiel de la diffusion neutronique en temps réel pour l'étude de la matière dans des conditions dynamiques. Enfin, nous donnerons aussi quelques conseils pour la visualisation, le dépouillement et l'analyse de ce type d'expérience. La diffusion des neutrons sur poudre est actuellement très bien adaptée aux études réalisées in situ. Cependant, nous verrons que la faisabilité d'études in situ s'étend à d'autres techniques expérimentales telles que la diffusion des neutrons aux petits angles et même la diffusion sur monocristal qui est en plein renouveau.

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Section: La Diffraction De Poudre In Situ Resolue En Tempsunclassified

Diffusion, diffraction des neutrons en temps réel et études réaliséesin situ

Isnard

2003

J. Phys. IV France

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“…1͒. The WAXS pattern is collected with a curved INEL detector 9 electronically set up to detect 60°, the SAXS pattern with a standard Daresbury quadrant detector. Scattering vectors (qϭ2/d) between 0.007ϽqϽ2.5 Å Ϫ1 can be observed.…”

Section: Methodsmentioning

confidence: 99%

Raman spectroscopy combined with small angle x-ray scattering and wide angle x-ray scattering as a tool for the study of phase transitions in polymers

Bryant

Gleeson

Ryan³

et al. 1998

Review of Scientific Instruments

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A novel combination of simultaneous experimental techniques has been developed as a tool for the study of phase transitions in polymers. Based upon a small angle x-ray scattering ͑SAXS͒ synchrotron radiation beamline it has been shown to be feasible to collect, in addition to the time-resolved SAXS data, wide angle x-ray scattering and Raman spectroscopy data with a time resolution of a few seconds.

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“…The first error is due to the lack of angular linearity of the CPS detector, known as integral linearity (Ballon, Comparat & Pouxe, 1983). Because of its electronics and the structure of the delay line, a CPS detector cannot give a linear response between acquisition canals and angular position.…”

Section: Linearity Of Cps Detectormentioning

confidence: 99%

“…The most convenient one uses the pattern of a reference compound with well known Bragg angles, whereas the second one uses a pattern obtained with a uniformly irradiated slotted mask (with constant interval) placed in front of the detector, the uniform irradiation point source (e.g. 55Fe fluorescence) being located at the centre of curvature of the detector (Ballon, Comparat & Pouxe, 1983). Lastly, St~hl & Hanson (1994) have proposed directly scanning the detector in 2 ° steps with the primary beam.…”

Section: Linearity Of Cps Detectormentioning

confidence: 99%

Reflection Asymmetric Powder Diffraction with Flat-Plate Sample using a Curved Position-Sensitive Detector (INEL CPS 120)

Masson¹,

Guinebretière²,

Dauger³

1996

J Appl Cryst

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The reflection flat-sample asymmetric geometry is an attractive set-up for powder diffraction measurements, as compared to either conventional Debye--Scherrer or symmetric Bragg-Brentano geometries. Combined with grazing-or fixed-incidence-angle X-rays, it is suitable for surface-structure or thin-film texture analysis. Furthermore, it allows curved position-sensitive detectors to be used for in situ experiments. In this paper, the major systematic error sources in connection with this geometry are reviewed. It is confirmed that experimental linearization of the curved position-sensitive detector and sample positioning have to be very carefully performed. Simple and automatable procedures are proposed. Then, it is shown that peak-location accuracy leads to satisfactory cell-parameter determination as checked by the use of a silicon international standard reference sample and that structure refinement by the Rietveld method can be performed in very good conditions, as observed with an NaBi2Sb3Oll compound.

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The blade chamber: A solution for curved gaseous detectors

Cited by 91 publications

References 5 publications

Diffusion, diffraction des neutrons en temps réel et études réaliséesin situ

Diffusion, diffraction des neutrons en temps réel et études réaliséesin situ

Raman spectroscopy combined with small angle x-ray scattering and wide angle x-ray scattering as a tool for the study of phase transitions in polymers

Reflection Asymmetric Powder Diffraction with Flat-Plate Sample using a Curved Position-Sensitive Detector (INEL CPS 120)

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