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公开(公告)号：US08470214B2
公开(公告)日：2013-06-25
申请号：US10856225
申请日：2004-05-28
IPC分类号： B29D11/00
CPC分类号： G01T1/20 , B23K2103/50 , G01T1/2002
摘要： A method for fabricating a detector or light guide using laser technology. The method yields a detector component such as a scintillator, light guide or optical sensor which provides for the internal manipulation of light waves via the strategic formation of micro-voids to enhance control and collection of scintillation light, allowing for accurate decoding of the impinging radiation. The method uses laser technology to create micro-voids within a target media to optically segment the media. The micro-voids are positioned to define optical boundaries of the optically-segmented portions forming virtual resolution elements within the scintillator. Each micro-void is formed at its selected location using a laser source. The laser source generates and focuses a beam of light into the target media sequentially to form the micro-voids. The laser beam ablates the media at the focal point, thereby yielding the micro-void.
摘要翻译： 一种使用激光技术制造检测器或导光体的方法。 该方法产生诸如闪烁体，光导或光学传感器的检测器组件，其通过微空隙的战略形成提供对光波的内部操纵，以增强闪烁光的控制和收集，允许对入射辐射的精确解码 。 该方法使用激光技术在目标介质内产生微孔，以光学分段介质。 微孔被定位以限定在闪烁体内形成虚拟分辨元件的光学分割部分的光学边界。 使用激光源在其选定位置形成每个微孔。 激光源产生并将光束聚焦到目标介质中以形成微空隙。 激光束在焦点处消融介质，从而产生微孔。
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公开(公告)号：US07164136B2
公开(公告)日：2007-01-16
申请号：US10680015
申请日：2003-10-07
申请人： Mehmet Aykac , Matthias J. Schmand , Niraj K. Doshi , Mark S. Andreaco , Lars A. Eriksson , Charles W. Williams , Ronald Nutt
发明人： Mehmet Aykac , Matthias J. Schmand , Niraj K. Doshi , Mark S. Andreaco , Lars A. Eriksson , Charles W. Williams , Ronald Nutt
IPC分类号： G01T3/06
CPC分类号： G01T1/1644 , A61B6/037 , G01T1/2928
摘要： A detector for use in imaging applications includes at least one detector array, an array of photodetectors, and a continuous light guide disposed between the detectors and the photodetectors. The light guide is continuous over the entire area of the photodetectors and detectors. The thickness of the light guide is optimized based on the shape of the photodetector array. Each detector array includes a plurality of scintillator elements disposed in an M×N array, where “M” and “N” are independently selectable and are each at least one. A mechanism for maintaining the relative positions of the individual scintillator elements with respect to each other is provided. The retainer is further provided to enhance the separation between the individual detector arrays to define distinct boundaries between the position profiles of the scintillator arrays.
摘要翻译： 用于成像应用的检测器包括至少一个检测器阵列，光电检测器阵列，以及设置在检测器和光电探测器之间的连续光导。 导光体在光电检测器和检测器的整个区域上是连续的。 基于光电检测器阵列的形状优化光导的厚度。 每个检测器阵列包括设置在MxN阵列中的多个闪烁体元件，其中“M”和“N”可独立选择并且各自至少一个。 提供了用于保持各个闪烁体元件相对于彼此的相对位置的机构。 进一步提供保持器以增强各个检测器阵列之间的间隔，以限定闪烁体阵列的位置分布之间的不同边界。
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公开(公告)号：US20100074396A1
公开(公告)日：2010-03-25
申请号：US12498101
申请日：2009-07-06
CPC分类号： G01T1/1644 , A61B6/032 , A61B6/037
摘要： Medical imaging may be accomplished with a high photoconductive gain at a relatively low operating voltage by employing a black silicon photodetector and integrating CMOS components with elements of the photodetector.
摘要翻译： 通过采用黑硅光电检测器并将CMOS部件与光电检测器的元件集成，可以在相对低的工作电压下以高的光电导增益实现医学成像。
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公开(公告)号：US20130032722A1
公开(公告)日：2013-02-07
申请号：US13426667
申请日：2012-03-22
CPC分类号： G01T1/20 , G01T1/22 , G01T1/2978
摘要： A device for detecting ionizing radiation includes a radiation interaction region configured to generate light in response to an interaction with the ionizing radiation, an optical gain medium region in optical communication with the radiation interaction region and configured to amplify the light, and an energy source coupled to the optical gain medium region and configured to maintain a state of population inversion in the optical gain medium region. The optical gain medium region has an emission wavelength that corresponds with a wavelength of the light generated by the radiation interaction region.
摘要翻译： 用于检测电离辐射的装置包括被配置为响应于与电离辐射的相互作用而产生光的辐射相互作用区域，与辐射相互作用区域光学通信并被配置为放大光的光学增益介质区域，以及耦合的能量源 并且被配置为保持光学增益介质区域中的总体反转状态。 光学增益介质区域具有与由辐射相互作用区域产生的光的波长相对应的发射波长。
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5.发明授权Czochralski crystal growth process furnace that maintains constant melt line orientation and method of operation 有权Czochralski晶体生长工艺炉保持恒定的熔体线取向和操作方法公开(公告)号：US08721786B2
公开(公告)日：2014-05-13
申请号：US12877140
申请日：2010-09-08
IPC分类号： C30B15/26
摘要： A Czochralski process (“CZ”) crystal growth method and furnace having a heater capable of generating a heating zone, a crucible within the heating zone and capable of retaining a volume of molten crystal growth material forming a melt line oriented in a designated position within the heating zone, a seed growth rod retractable from the crucible with a rod retraction mechanism, for forming a crystal boule thereon proximal the melt line from the molten crystal growth material. The furnace causes relative movement between the crucible and heating zone as the crystal boule is retracted, so that the melt line is maintained in the designated position within the heating zone. In some embodiments relative movement is based at least in part on sensed weight of the growing crystal boule. In other embodiments the crucible growth rod retraction mechanism are fixed relative to each other by a gantry.
摘要翻译： Czochralski工艺（“CZ”）晶体生长方法和具有能够产生加热区域的加热器的炉子，在加热区内的坩埚，并且能够保持一定量的熔融晶体生长材料， 所述加热区域是从所述坩埚收回的具有杆缩回机构的种子生长棒，用于在熔融线上从所述熔融晶体生长材料形成晶体棒。 当晶体晶棒缩回时，炉引起坩埚和加热区之间的相对运动，使得熔体线保持在加热区内的指定位置。 在一些实施例中，相对运动至少部分地基于生长的晶体晶粒的感测重量。 在其他实施例中，坩埚生长杆回缩机构通过台架相对于彼此固定。
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6.发明申请CZOCHRALSKI CRYSTAL GROWTH PROCESS FURNACE THAT MAINTAINS CONSTANT MELT LINE ORIENTATION AND METHOD OF OPERATION 有权CZOCHRALSKI晶体生长过程保持恒定的熔体线定向和操作方法公开(公告)号：US20120055395A1
公开(公告)日：2012-03-08
申请号：US12877140
申请日：2010-09-08
摘要： A Czochralski process (“CZ”) crystal growth method and furnace having a heater capable of generating a heating zone, a crucible within the heating zone and capable of retaining a volume of molten crystal growth material forming a melt line oriented in a designated position within the heating zone, a seed growth rod retractable from the crucible with a rod retraction mechanism, for forming a crystal boule thereon proximal the melt line from the molten crystal growth material. The furnace causes relative movement between the crucible and heating zone as the crystal boule is retracted, so that the melt line is maintained in the designated position within the heating zone. In some embodiments relative movement is based at least in part on sensed weight of the growing crystal boule. In other embodiments the crucible growth rod retraction mechanism are fixed relative to each other by a gantry.
摘要翻译： Czochralski工艺（“CZ”）晶体生长方法和具有能够产生加热区的加热器的炉子，在加热区内的坩埚，并且能够保持一定量的熔融晶体生长材料， 所述加热区域是从所述坩埚收回的具有杆缩回机构的种子生长棒，用于在熔融线上从所述熔融晶体生长材料形成晶体棒。 当晶体晶棒缩回时，炉引起坩埚和加热区之间的相对运动，使得熔体线保持在加热区内的指定位置。 在一些实施例中，相对运动至少部分地基于生长的晶体晶粒的感测重量。 在其他实施例中，坩埚生长杆回缩机构通过台架相对于彼此固定。
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公开(公告)号：US20120031325A1
公开(公告)日：2012-02-09
申请号：US12849042
申请日：2010-08-03
申请人： Mark S. Andreaco , Troy Marlar , Brant Quinton
发明人： Mark S. Andreaco , Troy Marlar , Brant Quinton
CPC分类号： C30B15/10 , C30B35/002 , Y10T29/49901 , Y10T29/49968 , Y10T117/10 , Y10T117/1024 , Y10T117/1032 , Y10T117/1068 , Y10T117/1088 , Y10T428/12292 , Y10T428/12361 , Y10T428/12493 , Y10T428/12632 , Y10T428/12639 , Y10T428/12771 , Y10T428/12806 , Y10T428/12812 , Y10T428/13 , Y10T428/16 , Y10T428/161 , Y10T428/169 , Y10T428/19 , Y10T428/192 , Y10T428/21 , Y10T428/218 , Y10T428/23
摘要： A lid for a crystal growth chamber crucible is constructed by forming arcuate sector-shaped portions and coupling them in abutting relationship, for example by welding, to form an annular profile fabricated lid. The arcuate sector-shaped portions may be formed and removed from a lid fabrication blank with less waste than when unitary annular lids are formed and removed from a similarly sized fabrication blank. For example, the sector-shaped portions may be arrayed in an undulating pattern on the fabrication sheet.
摘要翻译： 用于晶体生长室坩埚的盖通过形成弓形扇形部分并且以邻接关系例如通过焊接将它们联接以形成环形轮廓制造的盖而构成。 弓形扇形部分可以比形成一体的环形盖并从类似尺寸的制造坯料中移除而从具有较少浪费的盖制造坯料上形成和移除。 例如，扇形部分可以以起伏图案排列在制造片上。
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公开(公告)号：US08535441B2
公开(公告)日：2013-09-17
申请号：US12849042
申请日：2010-08-03
申请人： Mark S. Andreaco , Troy Marlar , Brant Quinton
发明人： Mark S. Andreaco , Troy Marlar , Brant Quinton
IPC分类号： C30B15/10
CPC分类号： C30B15/10 , C30B35/002 , Y10T29/49901 , Y10T29/49968 , Y10T117/10 , Y10T117/1024 , Y10T117/1032 , Y10T117/1068 , Y10T117/1088 , Y10T428/12292 , Y10T428/12361 , Y10T428/12493 , Y10T428/12632 , Y10T428/12639 , Y10T428/12771 , Y10T428/12806 , Y10T428/12812 , Y10T428/13 , Y10T428/16 , Y10T428/161 , Y10T428/169 , Y10T428/19 , Y10T428/192 , Y10T428/21 , Y10T428/218 , Y10T428/23
摘要： A lid for a crystal growth chamber crucible is constructed by forming arcuate sector-shaped portions and coupling them in abutting relationship, for example by welding, to form an annular profile fabricated lid. The arcuate sector-shaped portions may be formed and removed from a lid fabrication blank with less waste than when unitary annular lids are formed and removed from a similarly sized fabrication blank. For example, the sector-shaped portions may be arrayed in an undulating pattern on the fabrication sheet.
摘要翻译： 用于晶体生长室坩埚的盖通过形成弓形扇形部分并且以邻接关系例如通过焊接将它们联接以形成环形轮廓制造的盖而构成。 弓形扇形部分可以比形成一体的环形盖并从类似尺寸的制造坯料中移除而从具有较少浪费的盖制造坯料上形成和移除。 例如，扇形部分可以以起伏图案排列在制造片上。
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9.发明授权Rare-earth oxyorthosilicate scintillator crystals and method of making rare-earth oxyorthosilicate scintillator crystals 有权稀土氧原硅酸盐闪烁体晶体及稀土氧原硅酸盐闪烁体晶体的制备方法公开(公告)号：US08062419B1
公开(公告)日：2011-11-22
申请号：US12967442
申请日：2010-12-14
IPC分类号： C30B29/22
摘要： A method of making LSO scintillators with high light yield and short decay times is disclosed. In one arrangement, the method includes codoping LSO with cerium and another dopant from the IIA or IIB group of the periodic table of elements. The doping levels are chosen to tune the decay time of scintillation pulse within a broader range (between about ˜30 ns up to about ˜50 ns) than reported in the literature, with improved light yield and uniformity. In another arrangement, relative concentrations of dopants are chosen to achieve the desired light yield and decay time while ensuring crystal growth stability.
摘要翻译： 公开了一种制造具有高光产量和短衰减时间的LSO闪烁体的方法。 在一种布置中，该方法包括与元素的周期表的IIA或IIB族的铈和另一种掺杂剂的LSO共掺杂。 选择掺杂水平来调节闪烁脉冲在比文献中报道的更宽范围（约〜30ns至约〜50ns）之间的衰减时间，具有改善的光产量和均匀性。 在另一种布置中，选择掺杂剂的相对浓度以获得期望的光产率和衰变时间，同时确保晶体生长稳定性。
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公开(公告)号：US06328027B1
公开(公告)日：2001-12-11
申请号：US09438729
申请日：1999-11-11
申请人： Dennis E. Persyk , Mark S. Andreaco
发明人： Dennis E. Persyk , Mark S. Andreaco
IPC分类号： B28D108
摘要： A method for precision cutting liquid soluble scintillator materials by an operator is disclosed, including the steps of providing a first run of a moving filament in operative proximity to cut the scintillator materials, concurrent with wetting at least the first run length of the moving filament with organic solvent, and engaging the wetted first run with the soluble scintillator materials for a time sufficient to create a kerf having cut surfaces with solvent thereon, with the kerf cut surfaces dissolved to reshape the kerf corners, and without the formation of surface hydrates. The wetting step is accompanied by providing a second run of the wetted filament in a reverse direction and engaging the scintillator materials. The first run and second run engaging steps are concurrent with tensioning the moving filament, producing kerfs through the scintillator materials, with organic solvent delivered onto kerf surfaces. The organic solvent, such as alcohol or organic-based solvent, dissolves the kerf surfaces and contiguous materials, softening the surfaces and producing precisely cut kerfs with gently radiused corners. Repetitive dicing, slitting, slotting and otherwise segmenting of the scintillator materials with the wetted moving filament creates precisely cut subunit scintillator materials with gently radiused corners. The method produces extremely precise kerfs in soluble scintillator materials with kerfs having gently radiused corners that are resistance to stress fractures, breakage, and cleavage during production and use of the scintillator materials.
摘要翻译： 公开了一种通过操作者精确切割液体可溶性闪烁体材料的方法，包括以下步骤：提供操作性接近的第一次移动细丝以切割闪烁体材料，同时将至少移动细丝的第一游程长度与 有机溶剂，并使润湿的第一次运行与可溶性闪烁体材料接合足够长的时间以产生具有其上具有溶剂的切割表面的切口，切割表面被溶解以重新形成切口角，并且不形成表面水合物。 润湿步骤伴随着沿相反方向提供湿润长丝的第二次流动并与闪烁体材料接合。 第一次运行和第二次接合步骤同时张紧移动的细丝，通过闪烁体材料产生切口，并将有机溶剂输送到切口表面上。 有机溶剂，如醇或有机溶剂，可溶解切口表面和连续材料，软化表面，并产生精确切割的切口，轻轻的圆角。 用湿润的移动细丝重复切割，切割，开槽和以其他方式分割闪烁体材料，从而产生精确切割的亚基闪烁体材料，并具有轻微的圆角。 该方法在可溶性闪烁体材料中产生非常精确的切口，其切口具有温和圆角，其在生产和使用闪烁体材料期间具有抗应力断裂，断裂和断裂的能力。
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