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1. WO2015140227 - HIGH TRANSMITTANCE SINGLE CRYSTAL YAP SCINTILLATORS

Publication Number WO/2015/140227
Publication Date 24.09.2015
International Application No. PCT/EP2015/055718
International Filing Date 18.03.2015
IPC
C30B 29/24 2006.1
CCHEMISTRY; METALLURGY
30CRYSTAL GROWTH
BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
29Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
10Inorganic compounds or compositions
16Oxides
22Complex oxides
24with formula AMeO3, wherein A is a rare earth metal and Me is Fe, Ga, Sc, Cr, Co, or Al, e.g. ortho ferrites
C04B 35/115 2006.1
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01based on oxides
10based on aluminium oxide
111Fine ceramics
115Translucent or transparent products
C09K 11/77 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
11Luminescent, e.g. electroluminescent, chemiluminescent, materials
08containing inorganic luminescent materials
77containing rare earth metals
C30B 33/02 2006.1
CCHEMISTRY; METALLURGY
30CRYSTAL GROWTH
BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
33After-treatment of single crystals or homogeneous polycrystalline material with defined structure
02Heat treatment
G01T 1/202 2006.1
GPHYSICS
01MEASURING; TESTING
TMEASUREMENT OF NUCLEAR OR X-RADIATION
1Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
16Measuring radiation intensity
20with scintillation detectors
202the detector being a crystal
G01V 5/10 2006.1
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
5Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity
04specially adapted for well-logging
08using primary nuclear radiation sources or X-rays
10using neutron sources
CPC
C01F 17/34
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
17Compounds of rare earth metals
30Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6
32oxide or hydroxide being the only anion, e.g. NaCeO2 or MgxCayEuO
34Aluminates, e.g. YAlO3 or Y3-xGdxAl5O12
C01P 2002/34
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2002Crystal-structural characteristics
30Three-dimensional structures
34perovskite-type (ABO3)
C09K 11/7706
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
11Luminescent, e.g. electroluminescent, chemiluminescent materials
08containing inorganic luminescent materials
77containing rare earth metals
7706Aluminates
C09K 11/7774
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
11Luminescent, e.g. electroluminescent, chemiluminescent materials
08containing inorganic luminescent materials
77containing rare earth metals
7766containing two or more rare earth metals
7774Aluminates
C30B 15/00
CCHEMISTRY; METALLURGY
30CRYSTAL GROWTH
BSINGLE-CRYSTAL-GROWTH
15Single-crystal growth by pulling from a melt, e.g. Czochralski method
C30B 29/24
CCHEMISTRY; METALLURGY
30CRYSTAL GROWTH
BSINGLE-CRYSTAL-GROWTH
29Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
10Inorganic compounds or compositions
16Oxides
22Complex oxides
24with formula AMeO3, wherein A is a rare earth metal and Me is Fe, Ga, Sc, Cr, Co or Al, e.g. ortho ferrites
Applicants
  • CRYTUR [CZ]/[CZ]
Inventors
  • KUBAT, Jan
  • POLAK, Jan
  • KLEJCH, Martin
  • MAREK, Tomas
Agents
  • KELDA CAMILLA KAREN STYLE
Priority Data
14/217,71218.03.2014US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) HIGH TRANSMITTANCE SINGLE CRYSTAL YAP SCINTILLATORS
(FR) SCINTILLATEURS YAP MONOCRISTALLINS À FACTEUR DE TRANSMISSION ÉLEVÉ
Abstract
(EN)
A single crystal yttrium aluminum perovskite scintillator has a minimum thickness of at least 5 mm and a transmittance of at least 50% at a wavelength of 370 nm. A method for fabricating the yttrium aluminum perovskite scintillator includes acquiring a yttrium aluminum perovskite single crystal boule, annealing the yttrium aluminum perovskite single crystal boule in an oxygen containing environment to obtain a partially annealed crystal, and annealing the partially annealed crystal in an inert environment or a reducing environment to obtain the yttrium aluminum perovskite single crystal scintillator.
(FR)
La présente invention concerne un scintillateur monocristallin à base d'une pérovskite d'yttrium-aluminium possédant une épaisseur minimum d'au moins 5 mm et un facteur de transmission d'au moins 50 % à une longueur d'onde de 370 nm. L'invention concerne également un procédé de fabrication du scintillateur à base d'une pérovskite d'yttrium-aluminium, le procédé comprenant l'acquisition d'une boule monocristalline de pérovskite d'yttrium-aluminium, le recuit de la boule monocristalline de pérovskite d'yttrium-aluminium dans un environnement contenant de l'oxygène pour obtenir un cristal partiellement recuit, et le recuit du cristal partiellement recuit dans un environnement inerte ou un environnement réducteur pour obtenir le scintillateur monocristallin à base d'une perovskite d'yttrium-aluminium.
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