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1. 发明申请

US20150060686A1 Radiation-monitoring system with correlated hodoscopes 审中-公开
标题翻译：辐射监测系统与相关卫星
公开(公告)号：US20150060686A1
公开(公告)日：2015-03-05
申请号：US13987800
申请日：2013-09-04
申请人： Alexander DeVolpi
发明人： Alexander DeVolpi
IPC分类号： G01T1/16 , G01T3/00
CPC分类号： G01T3/00 , G01T1/006 , G01T1/2921 , G01T7/00 , G21C17/00 , G21D1/00 , Y02E30/40
摘要： At least one pair of hodoscope radiation monitors arranged to simultaneously monitor a target region that contains a source of radiation. The hodoscopes are preferably arranged so that their fields of view of the region are approximately orthogonal. The fields of view of the two detectors will overlap in a region that contains the source of radiation. Each of the two detectors will record radiation from the overlap region and, in addition, will record background radiation emanating from other regions within detector fields of view. The present invention provides statistical correlation techniques to estimate the extent to which unusually high radiation originates in the overlap region, irrespective of background in the field-of-view of individual hodoscope detectors. The source of radiation might be spontaneous, might be from an activation process, or might be scattered in from an external beam.
摘要翻译：至少一对测距仪辐射监视器被布置成同时监视包含辐射源的目标区域。优选地，配置使得它们的区域的视场近似正交。两个检测器的视场将在包含辐射源的区域中重叠。两个检测器中的每一个将记录来自重叠区域的辐射，并且还将记录从检测器视场内的其他区域发出的背景辐射。本发明提供了统计相关技术，以估计在重叠区域中出现异常高的辐射的程度，而不考虑各个天线探测器的视场中的背景。辐射源可能是自发的，可能来自激活过程，或可能从外部光束散射。

2. 发明申请

US20140226775A1 Liquid Lithium Cooled Fission Reactor for Producing Radioactive Materials 审中-公开
标题翻译：液体锂冷裂变反应堆生产放射性物质
公开(公告)号：US20140226775A1
公开(公告)日：2014-08-14
申请号：US13815218
申请日：2013-02-11
申请人： Alexander Devolpi
发明人： Alexander Devolpi
IPC分类号： G21G1/00
CPC分类号： G21G1/001 , G21C1/03 , G21G1/08 , Y02E30/34 , Y02E30/35
摘要： A liquid lithium-cooled fission reactor optimized for producing radioactive materials. The reactor is designed to enhance the availability of rare radioactive materials that have significant value for national defense, industrial research, and medical care. This invention has tangible design attributes that can be tailored to create one or more scarce and valuable radioactive materials. In particular, the reactor design is optimized for low-cost production of large quantities of radioactive tritium needed in national-defense and fusion-breeder programs. There are four core designs applied to this invention, all of which produce tritium and surplus heat that can generate byproduct electricity, thereby reducing the cost of radioactive-material production. Three of the embodiments furnish radioactive fission products, such as molybdenum-99, that can be extracted with high efficiency and rapid processing, thus fulfilling a critical supply and price shortfall in radioisotopes used for medical diagnosis and treatment.
摘要翻译：用于生产放射性物质的液体锂冷裂变反应堆。反应堆旨在提高对国防，工业研究和医疗保健具有重要价值的稀有放射性物质的可利用性。本发明具有可定制的有形设计属性，以产生一种或多种稀有和有价值的放射性材料。特别地，反应堆设计是针对国防和融合育种计划所需的大量放射性氚的低成本生产进行了优化的。本发明有四种核心设计，它们都产生能够产生副产物电的氚和多余的热量，从而降低了放射性材料生产的成本。其中三个实施例提供可以以高效率和快速加工提取的放射性裂变产物，例如钼-99，从而实现用于医疗诊断和治疗的放射性同位素的关键供应和价格短缺。

3. 发明授权

US3952253A Method and means for generating a synchronizing pulse from a repetitive wave of varying frequency 失效
标题翻译：用于从不同频率的重复波产生同步脉冲的方法和装置
公开(公告)号：US3952253A
公开(公告)日：1976-04-20
申请号：US526039
申请日：1974-11-21
申请人： Alexander DeVolpi , Ronald J. Pecina , Dale J. Travis
发明人： Alexander DeVolpi , Ronald J. Pecina , Dale J. Travis
IPC分类号： G03B39/00 , H03L7/099 , H03K1/17
CPC分类号： G03B39/00 , H03L7/0992
摘要： An event that occurs repetitively at continuously changing frequencies can be used to generate a triggering pulse which is used to synchronize or control. The triggering pulse is generated at a predetermined percentage of the period of the repetitive waveform without regard to frequency. Counts are accumulated in two counters, the first counting during the "on" fraction of the period, and the second counting during the "off" fraction. The counts accumulated during each cycle are compared. On equality the trigger pulse is generated. Count input rates to each counter are determined by the ratio of the on-off fractions of the event waveform and the desired phase relationship. This invention is of particular utility in providing a trigger or synchronizing pulse during the open period of the shutter of a high-speed framing camera during its acceleration as well as its period of substantially constant speed.
摘要翻译：可以使用在连续变化的频率上重复出现的事件来产生用于同步或控制的触发脉冲。触发脉冲以重复波形的周期的预定百分比生成，而不考虑频率。计数累积在两个计数器中，第一次计数在“开”期间，第二次计数在“关”分数。比较每个周期中积累的计数。在相等的情况下，产生触发脉冲。对每个计数器的计数输入速率由事件波形的开关分数与期望的相位关系的比率确定。本发明特别适用于在高速成帧摄像机在其加速期间的快门的打开周期期间以及其基本恒定速度的周期期间提供触发或同步脉冲。

4. 发明授权

US09268043B2 Radiation-monitoring system with correlated hodoscopes 有权
公开(公告)号：US09268043B2
公开(公告)日：2016-02-23
申请号：US13987800
申请日：2013-09-04
申请人： Alexander DeVolpi
发明人： Alexander DeVolpi
IPC分类号： G01T3/00 , G01T1/00 , G01T1/29 , G01T7/00 , G21C17/00 , G21D1/00
CPC分类号： G01T3/00 , G01T1/006 , G01T1/2921 , G01T7/00 , G21C17/00 , G21D1/00 , Y02E30/40
摘要： At least one pair of hodoscope radiation monitors arranged to simultaneously monitor a target region that contains a source of radiation. The hodoscopes are preferably arranged so that their fields of view of the region are approximately orthogonal. The fields of view of the two detectors will overlap in a region that contains the source of radiation. Each of the two detectors will record radiation from the overlap region and, in addition, will record background radiation emanating from other regions within detector fields of view. The present invention provides statistical correlation techniques to estimate the extent to which unusually high radiation originates in the overlap region, irrespective of background in the field-of-view of individual hodoscope detectors. The source of radiation might be spontaneous, might be from an activation process, or might be scattered in from an external beam.

5. 发明授权

US4829191A Switchable radioactive neutron source device 失效
标题翻译：可切换放射性中子源装置
公开(公告)号：US4829191A
公开(公告)日：1989-05-09
申请号：US117602
申请日：1987-11-06
申请人： Robert E. Boyar , Alexander DeVolpi , George S. Stanford , Edgar A. Rhodes
发明人： Robert E. Boyar , Alexander DeVolpi , George S. Stanford , Edgar A. Rhodes
IPC分类号： G21C7/34 , G21F5/04 , G21G4/02
CPC分类号： G21C7/34 , G21F5/04 , G21G4/02 , Y02E30/39
摘要： This invention is a switchable neutron generating apparatus comprised of a pair of plates, the first plate having an alpha emitter section on it and the second plate having a target material portion on it which generates neutrons when its nuclei absorb an alpha particle. In operation, the alpha portion of the first plate is aligned with the neutron portion of the second plate to produce neutrons and brought out of alignment to cease production of neutrons.
摘要翻译：本发明是一种可切换的中子发生装置，包括一对板，第一板在其上具有一个α发射极部分，而第二板在其上具有靶材料部分，当其核吸收α粒子时产生中子。在操作中，第一板的α部分与第二板的中子部分对准以产生中子并且不对齐以停止生产中子。

6. 发明授权

US4649015A Monitoring system for a liquid-cooled nuclear fission reactor 失效
标题翻译：液冷核裂变反应堆监测系统
公开(公告)号：US4649015A
公开(公告)日：1987-03-10
申请号：US632743
申请日：1984-07-20
申请人： Alexander DeVolpi
发明人： Alexander DeVolpi
IPC分类号： G01F23/288 , G21C17/035 , G21C17/00
CPC分类号： G01F23/288 , G21C17/035
摘要： A monitoring system for detecting changes in the liquid levels in various regions of a water-cooled nuclear power reactor, viz., in the downcomer, in the core, in the inlet and outlet plenums, at the head, and elsewhere; and also for detecting changes in the density of the liquid in these regions. A plurality of gamma radiation detectors are used, arranged vertically along the outside of the reactor vessel, and collimator means for each detector limits the gamma-radiation it receives as emitting from only isolated regions of the vessel. Excess neutrons produced by the fission reaction will be captured by the water coolant, by the steel reactor walls, or by the fuel or control structures in the vessel. Neutron capture by steel generates gamma radiation having an energy level of the order of 5-12 MeV, whereas neutron capture by water provides an energy level of approximately 2.2 MeV, and neutron capture by the fission fuel or its cladding provides an energy level of 1 MeV or less. The intensity of neutron capture thus changes significantly at any water-metal interface. Comparative analysis of adjacent gamma detectors senses changes from the normal condition with liquid coolant present to advise of changes in the presence and/or density of the coolant at these specific regions. The gamma detectors can also sense fission-product gas accumulation at the reactor head to advise of a failure of fuel-pin cladding.
摘要翻译：一种监测系统，用于检测水冷核反应堆各个区域的液面变化，即在降液管，核心部分，入口和出口处，头部和其他地方; 并且还用于检测这些区域中液体的密度的变化。使用多个伽马辐射检测器，其沿反应堆容器的外部垂直布置，并且每个检测器的准直器装置将其接收的伽马辐射限制为仅从容器的隔离区域发射。由裂变反应产生的过量中子将被水冷却剂，钢反应器壁或容器中的燃料或控制结构捕获。钢的中子捕获产生的能量水平为5-12 MeV的伽马辐射，而水的中子俘获提供了大约2.2 MeV的能级，并且裂变燃料或其包层的中子俘获提供了1级的能级 MeV以下。因此，在任何水 - 金属界面，中子俘获的强度都会显着变化。相邻γ检测器的比较分析从正常状态感测出存在液体冷却剂的变化，以指示在这些特定区域处冷却剂的存在和/或密度的变化。 γ检测器还可以检测反应器头部的裂变产物气体积聚，以提供燃料 - 销钉包层的故障。

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