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Bartunik, H.D.
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
AbstractAbstract
[en] The possibility of using position sensitive detectors for single crystal studies on small and large structures is discussed. In particular it is shown that for large structures such as proteins, the advantages of structural studies with neutrons will only come out if the neutron amplitudes are combined with experimentally determined neutron phases. Suitable position sensitive detectors would make it possible to determine the structure of a protein by means of neutron diffraction only
[fr]
On a discute la possibilite d'utiliser les detecteurs a localisation pour les etudes de monocristaux dans le cas de structures de petite et grande dimensions. En particulier on a montre que pour des structures de grande dimension telles que les proteines, les avantages des etudes structurales par neutrons ne ressortiront que si les amplitudes neutroniques sont combinees avec des phases neutroniques determinees experimentalement. Des detecteurs a localisation adaptes devraient permettre la determination de la structure d'une proteine en utilisant la diffraction neutronique uniquementSource
Meardon, B.H. (ed.); Institut Max von Laue - Paul Langevin, 38 - Grenoble (France); p. 122-131; 1975; Meeting on applications of position sensitive detectors to thermal neutron scattering; Grenoble, France; 15 Jan 1975
Record Type
Report
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Conference
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Jacobe, J.
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
AbstractAbstract
[en] The characteristics of neutrons detectors using BF3 or 3He as detection gases are given. The primary charges are collected either directly in plane impulse ionization chambers or cylindrical ionization chambers, or in proportional systems. It is shown that for neutron multidetectors, multielectrode gas detectors seem very convenient and their technology is well known. The performance of second generation multidetectors operating with proportional systems is studied in detail. The advantages and drawbacks of resistant-wire position detectors are also analyzed
[fr]
On presente les caracteristiques des detecteurs de neutrons utilisant BF3 ou 3He comme gaz de detection. Les charges primaires sont collectees soit directement dans des chambres d'ionisation planes a impulsions ou des chambres d'ionisation cylindriques, soit dans des systemes proportionnels. On montre que pour les multi-detecteurs de neutrons, les detecteurs a gaz a electrodes multiples semblent tres interessants et leur technologie est bien connue. On etudie en detail les performances de la seconde generation de multidetecteurs utilisant des systemes proportionnels. On analyse aussi les avantages et les inconvenients des detecteurs a localisation a fils resistantsSource
Meardon, B.H. (ed.); Institut Max von Laue - Paul Langevin, 38 - Grenoble (France); p. 20-57; 1975; Meeting on applications of position sensitive detectors to thermal neutron scattering; Grenoble, France; 15 Jan 1975
Record Type
Report
Literature Type
Conference
Report Number
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Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Convert, P.
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
AbstractAbstract
[en] The curved linear position sensitive detector used in neutron powder diffractometry at Siloe is described. For all the studies which do not require high resolution this banana detector is very interesting because it covers a 80 deg angle. However, it would be more interesting to have a larger banana (128 deg for exemple) with exactly the same specifications
[fr]
On decrit le detecteur a localisation lineaire courbe utilise en diffraction des poudres aupres de Siloe. Pour toutes les etudes qui demandent une resolution moyenne, le detecteur banane est tres interessant car il couvre 80 deg. Cependant, il semble qu'il serait interessant d'avoir une banane plus grande (128 deg par exemple) avec exactement les memes specificationsSource
Meardon, B.H. (ed.); Institut Max von Laue - Paul Langevin, 38 - Grenoble (France); p. 110-121; 1975; Meeting on applications of position sensitive detectors to thermal neutron scattering; Grenoble, France; 15 Jan 1975; use of position sensitive detectors.
Record Type
Report
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Conference
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Haywood, B.C.G.
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
AbstractAbstract
[en] Resistive wire detectors using pulse amplitude to determine the position of the ionisation pulse have been developed at Harwell. They are described and their performance is studied
Source
Meardon, B.H. (ed.); Institut Max von Laue - Paul Langevin, 38 - Grenoble (France); p. 58-70; 1975; Meeting on applications of position sensitive detectors to thermal neutron scattering; Grenoble, France; 15 Jan 1975
Record Type
Report
Literature Type
Conference
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Country of publication
Reference NumberReference Number
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INIS IssueINIS Issue
Forsyth, J.B.
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
AbstractAbstract
No abstract available
Source
Meardon, B.H. (ed.); Institut Max von Laue - Paul Langevin, 38 - Grenoble (France); p. 109; 1975; Meeting on applications of position sensitive detectors to thermal neutron scattering; Grenoble, France; 15 Jan 1975; Published in abstract form only.
Record Type
Report
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Gilmore, D.
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
AbstractAbstract
[en] A neutron area detector system in development at ILL which is based on a system for x-rays is described. The neutrons fall on a phosphor screen (a mixture of 6LiF and ZnS) coupled to a four-stage image intensifier which is in turn fibre-optically coupled to a T.V. camera tube. This system has a large counting rate capability. Its spatial resolution is of the order of one mm. The main limitation of the system is its limited counting efficiency
Source
Meardon, B.H. (ed.); Institut Max von Laue - Paul Langevin, 38 - Grenoble (France); p. 88-102; 1975; Meeting on applications of position sensitive detectors to thermal neutron scattering; Grenoble, France; 15 Jan 1975
Record Type
Report
Literature Type
Conference
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INIS IssueINIS Issue
Meardon, B.H.
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
AbstractAbstract
[en] Position sensitive detectors used as neutron detectors consist of a neutron converter and a charged particle detector. The effects of both these devices on the efficiency and the resolution of these detectors are analyzed
Source
Meardon, B.H. (ed.); Institut Max von Laue - Paul Langevin, 38 - Grenoble (France); p. 3-18; 1975; Meeting on applications of position sensitive detectors to thermal neutron scattering; Grenoble, France; 15 Jan 1975
Record Type
Report
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Conference
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Allemand, R.
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
AbstractAbstract
[en] A method of particle localization for gas chambers (backgammon game method) is presented. The cathode is geometrically cut in such a way that it is possible to establish a simple relation between the signal amplitude on the different parts of the cathode and the position of the nuclear event. The results obtained in the case of x-ray detectors are presented. The application of this method to the localization of neutrons is presently studied
[fr]
On decrit une methode de localisation pour chambre a gaz (appelee jeu de jacquet) qui consiste a decouper geometriquement la cathode en vue d'etablir une relation simple entre l'amplitude des signaux induits sur les morceaux de cathode et la position de l'evenement nucleaire. On presente les resultats obtenus pour la localisation des rayons X. La transposition de cette methode a la localisation des neutrons est a l'etudeSource
Meardon, B.H. (ed.); Institut Max von Laue - Paul Langevin, 38 - Grenoble (France); p. 103-107; 1975; Meeting on applications of position sensitive detectors to thermal neutron scattering; Grenoble, France; 15 Jan 1975; X-ray and neutron position sensitive detectors.
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Davidson, P.L.; Wroe, H.
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
Report on a discussion meeting on applications of position sensitive detectors to thermal neutron scattering. Held at the Institut Max von Laue-Paul Langevin, 15 January 19751975
AbstractAbstract
[en] Development work in the NBRU on position sensitive detectors has shown that good neutron position sensitive detectors can be made using channel electron multiplier plates. The following advantages can be obtained: high detection efficiency, high resolution or low resolution obtainable from the same basic module, good stability of positional accuracy. In addition, the use of coincidence techniques gives very low noise and easy γ discrimination
Source
Meardon, B.H. (ed.); Institut Max von Laue - Paul Langevin, 38 - Grenoble (France); p. 71-87; 1975; Meeting on applications of position sensitive detectors to thermal neutron scattering; Grenoble, France; 15 Jan 1975
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AbstractAbstract
[en] The neutron small angle camera D11 at the High Flux Reactor in Grenoble uses a two-dimensional multiwire proportional chamber with 3808 elements of 1cm2 spread over 3808cm2. The limits imposed by the detector onto the D11 system is the overall area of the sensitive volume. The limits, however, imposed on the system by other components are more restricting. These are: the limited count rate due to the electronic part between detector and on-line computer; the limited wavelength resolution due to the monochromator; the limited angular region due to a rigid position of the detector with respect to the incoming beam; the last two limitations are a consequence of the possibility to cover a great domain of scattering angles with the same instrument using the same relative resolution
[fr]
La camera D11 pour l'etude de la diffusion des neutrons aux petits angles installee aupres du reacteur a haut flux de Grenoble comprend un detecteur a localisation qui est une chambre proportionnelle a fils a deux dimensions formees de 3808 elements de 1cm2 couvrant une surface de 3808cm2. Les limites imposees pour le detecteur au systeme sont dues a la section totale du volume sensible. Les limites imposees par les autres composants sont cependant plus restrictives. Ce sont: les taux de comptage limite du au circuit electronique entre le detecteur et le calculateur en ligne, la resolution des longueurs d'onde limitee a cause de la position rigide du detecteur par rapport au faisceau incident. Les deux dernieres limitations sont une consequence de la possibilite de couvrir un domaine etendu d'angles de diffusion avec le meme instrument possedant une meme resolution relativeSource
Meardon, B.H. (ed.); Institut Max von Laue - Paul Langevin, 38 - Grenoble (France); p. 132-159; 1975; Meeting on applications of position sensitive detectors to thermal neutron scattering; Grenoble, France; 15 Jan 1975
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Report
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