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AbstractAbstract
No abstract available
Original Title
Patent
Source
19 Mar 1974; 6 p; US PATENT DOCUMENT 3,798,448
Record Type
Patent
Country of publication
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INIS IssueINIS Issue
Wykes, J.S.; Adsley, I.
Coal Industry (Patents) Ltd., London (UK)1982
Coal Industry (Patents) Ltd., London (UK)1982
AbstractAbstract
[en] A scintillation detector that is robust enough for industrial applications has at least two scintillation crystals supported and cushioned by a resilient support material, conveniently silicone rubber
Source
23 Feb 1982; 13 p; CA PATENT DOCUMENT 1118915/A/; UK patent application 22941/77, 31 May 1977.
Record Type
Patent
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Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Original Title
Patent
Source
4 Jun 1974; 14 p; US PATENT DOCUMENT 3,814,938
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
DeCou, D.F.; Roach, T.
Machlett Labs., Inc., Stamford, CT (USA); Deutsches Patentamt, Muenchen (Germany, F.R.)1979
Machlett Labs., Inc., Stamford, CT (USA); Deutsches Patentamt, Muenchen (Germany, F.R.)1979
AbstractAbstract
[en] The scintillation crystal is suitable for use in computer tomography. It is in the form of a wedge, at whose wide end there is a photo-electric diode. The X-rays or γ-radiation impinges on one of the wedge surfaces. The other wedge surfaces, except the wide end, are provided with light scattering coatings, so that all the light produced is directed to the photo-electric diode. (DG)
[de]
Der Szintillationskristall eignet sich fuer den Einsatz in der Computer-Tomographie. Er weist die Form eines Keiles auf, an dessen erweitertem Keilende eine Photodiode angeordnet ist. Die Roentgen- oder γ-Strahlung trifft auf eine der Keiloberflaechen auf. Die uebrigen Keiloberflaechen, mit Ausnahme des erweiterten Keilendes, sind mit lichtstreuenden Schichten versehen, so dass saemtliches erzeugte Licht zur Photodiode hingerichtet wird. (DG)Original Title
Strahlungsdetektor
Secondary Subject
Source
12 Apr 1979; 17 p; DE PATENT DOCUMENT 2841394/A/
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Gutbrod, H.H.; Maier, M.R.; Meyer, W.G.; Peter, J.; Poskanzer, A.M.; Ritter, H.G.; Stelzer, H.; Stock, R.; Welk, F.; Wolf, K.L.
Nuclear science. Annual report, July 1, 1978-June 30, 19791980
Nuclear science. Annual report, July 1, 1978-June 30, 19791980
AbstractAbstract
[en] Design and performance of the Plastic Ball detector are described. The Plastic Ball identifies light charged particles with a solid angle of 96% of 4π. 2 figures
Source
Gough, R.A.; Nurmia, M.J.; Westfall, G.D. (eds.); California Univ., Berkeley (USA). Lawrence Berkeley Lab; p. 237-239; Mar 1980; p. 237-239
Record Type
Report
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INIS IssueINIS Issue
AbstractAbstract
No abstract available
Source
10 Jul 1973; 6 p; US PATENT DOCUMENT 3,745,359
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Luitwieler, S.H. Jr.; Klein, P.R.; Robinson, D.D.
Beckman Instruments, Inc., Fullerton, Calif. (USA)1976
Beckman Instruments, Inc., Fullerton, Calif. (USA)1976
AbstractAbstract
[en] A solid scintillation detector is described with automatic sample handling means, which is not dependent upon the sample volume, minimizes contamination problems with the crystal detector, has a single sample measurement capability, and is compact and relatively portable. (E.C.B.)
Source
19 Oct 1976; 15 p; CA PATENT DOCUMENT 998781; Available from Supply and Services Canada, Publishing Center, Ottawa.
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Cusano, D.A.
General Electric Co., Schenectady, NY (USA)1980
General Electric Co., Schenectady, NY (USA)1980
AbstractAbstract
[en] This invention concerns emission radiography cameras in general and, in particular, the collimator and scintillator structures of gamma ray cameras. The collimator/scintillator structure is characterized by an extremely high resolution. This resolution is limited only by the collimator material which must be thick enough to avoid any cross-checking between adjacent cells but nevertheless sufficiently thin for its cross-section area not to be significant in relation to the area of the channels formed by the cells of the collimation grating. In accordance with the invention, the scintillator material takes up the end of the collimation grating which is at the opposite end of the source of gamma photons. The scintillator is generally a material with an appropriate refraction index such as europium doped barium fluorochloride (BaFCl : Eu) in suspension in a substance with an appropriate refraction index
[fr]
L'invention concerne, d'une maniere generale, les cameras de radiographie par emission et a, plus particulierement, trait aux structures de collimateur et scintillateur de cameras a rayons gamma. Sa structure collimateur/scintillateur est caracterisee par une resolution extremement elevee. Sa resolution n'est limitee que par le materiau de collimateur qui doit etre suffisamment epais pour eviter tout recoupement entre cellules adjacentes, mais toutefois suffisamment mince pour que sa surface en coupe transversale ne soit pas importante par rapport a la surface des canaux formes par les cellules du reseau de collimation. Conformement a l'invention, le materiau scintillateur occupe l'extremite du reseau de collimation qui est a l'oppose de la source de photons gamma. Le scintillateur est generalement constitue par un materiau a indice de refraction approprie tel que du fluorochlorure de baryum dope a l'europium (BaFCl: Eu) en suspension dans une substance a indice de refraction approprieOriginal Title
Structure de scintillateur pour camera de gammagraphie
Source
28 Mar 1980; 10 p; FR PATENT DOCUMENT 2435123/A/; Available from Institut National de la Propriete Industrielle, Paris (France); Priority claim: 30 Aug 1978, US.
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Source
20 Nov 1973; 6 p; US PATENT DOCUMENT 3,774,032
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The limitations of gross-count logging systems in mixed uranium-thorium environments have prompted the development and production of gamma ray spectrometric logging equipment (particularly portable units for use in rugged terrain) by a number of manufacturers. Sodium iodide and cesium iodide scintillation detectors are still used almost exclusively as the radiation sensors but some advances have been made in detector technology with bismuth germanate being one of the most promising new detector materials. Work on improving methods of stabilizing down-hole scintillation detectors against the effects of temperature change on the gamma-ray energy spectrum has indicated that artificially induced scintillations from light emitting diodes or alpha particle sources (e.g. Am241) implanted in the crystal are subject to error when the probe assembly is undergoing a temperature transition. Low energy gamma-ray sources, such as Ba133 (356 keV) are used in most spectral loggers today, although it has limitations. A more promising approach to correct for spectral drift is the application of spectral fitting techniques to the recorded data. Considerable progress has been made in the development of model borehole calibration facilities to derive the calibration factors necessary for spectral logging. The energy dependence of borehole correction factors has also been investigated. Microcomputer technology has now reached the stage where on-line data processing is practical. Portable logging equipment is commercially available with on-line display of quantitative uranium determinations implemented by inverse filtering as well as recording raw data on a digital cartridge tape
Source
Nuclear Energy Agency, 75 - Paris (France); 979 p; ISBN 92-64-02350-X;
; 1982; p. 777-792; OECD; Paris (France); Symposium on uranium exploration methods; Paris (France); 1-4 Jun 1982

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