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公开(公告)号：US5176890A
公开(公告)日：1993-01-05
申请号：US276664
申请日：1988-11-28
申请人： Alain Iltis , Patrick Maestro
发明人： Alain Iltis , Patrick Maestro
CPC分类号： C01B35/04
摘要： The rare earth borides, e.g., the tetraborides and hexaborides of lanthanum, cerium and praseodymium, are directly prepared by heating/reacting a mixture of at least one rare earth chloride and elemental boron at an elevated temperature, e.g., a temperature ranging from 1,200.degree. to 1,500.degree. C.
摘要翻译： 稀土硼化物，例如镧，铈和镨的四硼化物和六硼化物，通过在升高的温度例如1200℃的温度下加热/反应至少一种稀土氯化物和元素硼的混合物直接制备 至1500℃
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公开(公告)号：US4936875A
公开(公告)日：1990-06-26
申请号：US352950
申请日：1989-05-17
申请人： Alain Iltis , Patrick Maestro
发明人： Alain Iltis , Patrick Maestro
CPC分类号： C09K3/1418
摘要： Particulates, e.g., powders, of the rare earth borides are well suited for the effective abrasion/polishing of a variety of characteristically hard substrate face surfaces, e.g., hard ceramic surfaces.
摘要翻译： 稀土硼化物的颗粒例如粉末非常适用于各种特征性的硬质基材表面（例如硬质陶瓷表面）的有效磨损/抛光。
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公开(公告)号：US4929574A
公开(公告)日：1990-05-29
申请号：US330484
申请日：1989-03-30
申请人： Alain Iltis , Patrick Maestro
发明人： Alain Iltis , Patrick Maestro
CPC分类号： C08K3/24 , C09C1/36 , H01Q17/004 , H05B6/76 , C01P2004/61
摘要： Novel compositions containing finely divided barium titanate particulates homogeneously dispersed in a solid organic matrix material, the barium titanate particles having a mean diameter of at least 1 micron, are well adopted for the production of electromagnetic wave absorbers, e.g., seals for microwave ovens.
摘要翻译： 包含均匀分散在固体有机基质材料中的细碎钛酸钡颗粒的新型组合物，具有至少1微米的平均直径的钛酸钡颗粒被广泛用于生产电磁波吸收剂，例如用于微波炉的密封件。
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公开(公告)号：US4999176A
公开(公告)日：1991-03-12
申请号：US341809
申请日：1989-04-24
申请人： Alain Iltis , Patrick Maestro
发明人： Alain Iltis , Patrick Maestro
IPC分类号： C01B35/04
CPC分类号： C01B35/04
摘要： The rare earth borides are prepared at relatively low temperatures by reacting a rare earth halide with elemental boron in the presence of a reducing amount of aluminum metal.
摘要翻译： 稀土硼化物在相对较低的温度下通过稀土卤化物与元素硼在还原量的金属铝的存在下反应制备。
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公开(公告)号：US10310103B2
公开(公告)日：2019-06-04
申请号：US15310964
申请日：2015-05-18
申请人： Alain Iltis
摘要： The invention concerns a method for improving the energy resolution of a gamma ray detector comprising a monolithic scintillator and a photodetector segmented during a scintillation event characterized by the following steps:—detecting the time of arrival of the first photons on said photodetector;—counting, during a period T, which is between 2 and 6 times a transfer time (Te), the number and location of the first detected non-scattered photons;—determining the diameter and the position of a disk defined by a set of first non-scattered photons;—determining the position (X, Y) of a scintillation event from the location of said first detected non-scattered photons;—counting the number of the first detected non-scattered photons inside said disk during a period Td greater than a decay time (T) of the scintillator;—defining the energy of a gamma photon, said energy being proportional to the number of non-scattered photons counted inside the disc. The invention also concerns the associated detection system, the microelectronic component and a scintillator crystal treated for use in a PET application, and the use of the detection system according to the invention in PET and SPECT imagers.
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公开(公告)号：US10509134B2
公开(公告)日：2019-12-17
申请号：US15574721
申请日：2016-05-13
申请人： Alain Iltis
摘要： A Compton camera system and method for detecting gamma radiation, comprising a gamma radiation source, at least one fast scintillator plate P1 of which the rise time to peak light is less than 1 ns, having a thickness greater than or equal to 5 mm, equipped with an array of segmented photodetectors (5) and a dedicated fast-reading microelectronic means. The system is characterised in that it is capable of measuring the spatial and temporal coordinates (X, Y, Z, T) and energy E at at least two successive positions of a gamma photon when said photon undergoes Compton scattering at a first point A before being absorbed at a second point B, by recognising circles of non-scattered photons corresponding to each scintillation interaction. The system has a module for estimating a valid Compton event. The detection system has two scintillator plates P1 and P2.
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公开(公告)号：US08470089B2
公开(公告)日：2013-06-25
申请号：US12121459
申请日：2008-05-15
IPC分类号： C30B1/02
摘要： The invention relates to a process for manufacturing a single crystal comprising a rare-earth halide, having improved machining or cleavage behavior, comprising heat treatment in a furnace, the atmosphere of which is brought, for at least 1 hour, to between 0.70 times Tm and 0.995 times Tm of a single crystal comprising a rare-earth halide, Tm representing the melting point of said single crystal, the temperature gradient at any point in the atmosphere of the furnace being less than 15 K/cm for said heat treatment. After carrying out the treatment according to the invention, the single crystals may be machined or cleaved without uncontrolled fracture. The single crystals may be used in a medical imaging device, especially a positron emission tomography system or a gamma camera or a CT scanner, for crude oil exploration, for detection and identification of fissile or radioactive materials, for nuclear and high-energy physics, for astrophysics or for industrial control.
摘要翻译： 本发明涉及一种制造包含稀土卤化物的单晶的方法，其具有改进的机械加工或断裂行为，包括在其气氛中进行至少1小时的炉中的热处理至0.70倍的Tm 和包含稀土卤化物的单晶的Tm的0.995倍，Tm表示所述单晶的熔点，炉的气氛中的任何点的温度梯度对于所述热处理小于15K / cm。 在进行根据本发明的处理之后，单晶可以被加工或切割而没有不受控制的断裂。 单晶可以用于医学成像装置，特别是正电子发射断层摄影系统或γ照相机或CT扫描仪，用于原子石油勘探，用于核和高能物理学的检测和识别裂变或放射性材料， 用于天体物理学或工业控制。
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公开(公告)号：US08021636B2
公开(公告)日：2011-09-20
申请号：US12641840
申请日：2009-12-18
申请人： Alain Iltis
发明人： Alain Iltis
IPC分类号： C01F17/00
CPC分类号： C04B35/653 , C04B35/5152 , C04B2235/3201 , C04B2235/3224 , C04B2235/3227 , C04B2235/3229 , C04B2235/444 , C04B2235/6562 , C04B2235/658 , C04B2235/77 , C09K11/7704 , C09K11/7772 , C30B11/00 , C30B29/12
摘要： The invention relates to a method of preparing a polycrystalline block of a halide of formula AeLnfX(3f+e) in which Ln represents one or more rare earths, X represents one or more halogen atoms selected from the group consisting of Cl, Br and I, and A represents one or more alkali metals selected from the group consisting of K, Li, Na, Rb and Cs, e, which may be zero, being less than or equal to 3f, and f being greater than or equal to 1, having a low water and oxyhalide content, in which the method comprises heating a mixture of, on the one hand, at least one compound having at least one Ln—X bond and, on the other hand, a sufficient amount of NH4X in order to obtain the oxyhalide content, resulting in a molten mass comprising the rare-earth halide, the heating being followed by cooling, and the heating, after having reached 300° C., never going below 200° C. before the molten mass has been obtained. The blocks thus produced allow very pure single crystals having remarkable scintillation properties to be grown.
摘要翻译： 本发明涉及一种制备式AeLnfX（3f + e）的卤化物的多晶块的方法，其中Ln表示一种或多种稀土，X表示一个或多个选自Cl，Br和I的卤素原子 A表示选自K，Li，Na，Rb和Cs中的一种或多种碱金属，e可以为零，小于或等于3f，f大于或等于1， 具有低水和卤氧化物含量，其中所述方法包括加热一方面至少一种具有至少一个Ln-X键的化合物和另一方面足够量的NH 4 X的混合物，以便 得到卤氧化物含量，得到包含稀土卤化物的熔融物质，然后进行冷却，在达到300℃后加热，在获得熔融物质之前，不会低于200℃ 。 如此制备的嵌段可以使具有显着闪烁特性的非常纯的单晶生长。
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公开(公告)号：US07670578B2
公开(公告)日：2010-03-02
申请号：US10535818
申请日：2003-11-13
申请人： Alain Iltis
发明人： Alain Iltis
IPC分类号： C01F17/00
CPC分类号： C04B35/653 , C04B35/5152 , C04B2235/3201 , C04B2235/3224 , C04B2235/3227 , C04B2235/3229 , C04B2235/444 , C04B2235/6562 , C04B2235/658 , C04B2235/77 , C09K11/7704 , C09K11/7772 , C30B11/00 , C30B29/12
摘要： The invention relates to a method of preparing a polycrystalline block of a halide of formula AeLnfX(3f+e) in which Ln represents one or more rare earths, X represents one or more halogen atoms selected from the group consisting of Cl, Br and I, and A represents one or more alkali metals selected from the group consisting of K, Li, Na, Rb and Cs, e, which may be zero, being less than or equal to 3f, and f being greater than or equal to 1, having a low water and oxyhalide content, in which the method comprises heating a mixture of, on the one hand, at least one compound having at least one Ln—X bond and, on the other hand, a sufficient amount of NH4X in order to obtain the oxyhalide content, resulting in a molten mass comprising the rare-earth halide, the heating being followed by cooling, and the heating, after having reached 300° C., never going below 200° C. before the molten mass has been obtained. The blocks thus produced allow very pure single crystals having remarkable scintillation properties to be grown.
摘要翻译： 本发明涉及一种制备式AeLnfX（3f + e）的卤化物的多晶块的方法，其中Ln表示一种或多种稀土，X表示一个或多个选自Cl，Br和I的卤素原子 A表示选自K，Li，Na，Rb和Cs的一种或多种碱金属，e可以为零，小于或等于3f，f大于或等于1， 具有低水和卤氧化物含量，其中所述方法包括加热一方面至少一种具有至少一个Ln-X键的化合物和另一方面足够量的NH 4 X的混合物，以便 得到卤氧化物含量，得到包含稀土卤化物的熔融物质，加热后进行冷却，在达到300℃之后，在获得熔融物质之前，加热至少不会低于200℃。 如此制备的嵌段可以使具有显着闪烁特性的非常纯的单晶生长。
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10.发明授权公开(公告)号：US07608201B2
公开(公告)日：2009-10-27
申请号：US11578379
申请日：2005-04-12
申请人： Alain Iltis
发明人： Alain Iltis
摘要： Inorganic scintillator material of formula AnLnpX(3p+n) in which has a very low nuclear background noise and is particularly suitable as a detector scintillator for coating weight or thickness measurements, in the fields of nuclear medicine, physics, chemistry and oil exploration, and for the detection of dangerous or illicit materials.
摘要翻译： 具有非常低的核背景噪声的式AnLnpX（3p + n）的无机闪烁体材料，特别适用于在核医学，物理学，化学和石油勘探领域的涂层重量或厚度测量的检测器闪烁体，以及 用于检测危险或非法材料。
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