A two-dimensional scintillation detector for small angle neutron scattering

Heiderich, M.; Reinartz, R.; Kurz, R.; Schelten, J.

doi:10.1016/0168-9002(91)90562-5

Cited by 29 publications

(13 citation statements)

References 14 publications

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“…The resolution after scattering is determined by the cell size of the detector and by the entrance slits. Two detectors are available: a pair of crossed boron counters with linear space resolution; and an Anger camera (Heiderich, Reinartz, Kurz & Schelten, 1991) with an Li 6 J-scintillator plate. The The optimum matching of the geometrical resolution before and after scattering is achieved from case to case by adapting the collimation length and the detector-sample distance L by automatic means.…”

Section: The Slit Machinesmentioning

confidence: 99%

SANS instruments at the Jülich research reactor FRJ-2

Schwahn¹,

Meier²,

Springer³

1991

J Appl Cryst

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Section: The Slit Machinesmentioning

confidence: 99%

SANS instruments at the Jülich research reactor FRJ-2

Schwahn¹,

Meier²,

Springer³

1991

J Appl Cryst

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“…T WO-DIMENSIONAL detectors with position-sensitive photomultipliers are described in [1]- [3]. Such detectors are useful in gamma scintigraphy and in neutron scattering experiments.…”

Section: Introductionmentioning

confidence: 99%

A flexible data acquisition board for nuclear detectors

Engels

Clemens

Rongen

et al. 2002

IEEE Trans. Nucl. Sci.

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Abstract-For two-dimensional scintillation detectors based on position-sensitive photomultipliers, a new PCI or cPCI unit has been developed. It aims at fast signal and data processing by the usage of advanced technologies like digital signal processors and field-programmable gate arrays. The main features of this design are described in this paper. Digital test measurements were carried out showing that the chosen design complies with the requirements of nuclear pulse processing for such applications.Index Terms-Detector, detector read out, digital signal processor (DSP), field-programmable gate array (FPGA), neutron, photomultiplier, UniDAQ.

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“…It is based on the pinhole-technique with a monochromator and several collimators for wavelength selection and beam adjustment. At KWS-1, a position-sensitive detector [2] was successfully used for about 15 yr. However, after an installation of advanced neutron guides, there were higher intensities available leading to high dead times of the detector at counting rates above 10 kHz.…”

mentioning

confidence: 99%

Performance measurements of a new large-area neutron scintillation detector system

Kemmerling

Bunten

Clemens

et al. 2004

IEEE Trans. Nucl. Sci.

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Abstract-During the upgrade of the small-angle neutron scattering instrument KWS-1 at the research reactor FRJ-2, the 15-yr-old detector system has been replaced. While the Anger camera-based concept of the detector remained unchanged, the signal and data processing branch has been completely revised. Because of higher count rate requirements, a highly configurable parallel readout electronics has been developed aiming at counting rates of several hundred kilohertz. The whole detector system has been recently installed at KWS-1 and measurements to study the system performance have been carried out. The linearity and spatial resolution of the new detector have been determined by an analysis of an acquired image taken with a hole diaphragm in front of the scintillator. The overall system dead time has been measured by comparing the detector count rates at several scattering intensities to the count rates achieved with a fission chamber. Finally, scattering patterns of well-known samples have been taken in order to demonstrate the quality of the acquired images.

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A two-dimensional scintillation detector for small angle neutron scattering

Cited by 29 publications

References 14 publications

SANS instruments at the Jülich research reactor FRJ-2

SANS instruments at the Jülich research reactor FRJ-2

A flexible data acquisition board for nuclear detectors

Performance measurements of a new large-area neutron scintillation detector system

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