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公开(公告)号：US09847215B2
公开(公告)日：2017-12-19
申请号：US14919826
申请日：2015-10-22
发明人： Pavel V. Degtiarenko
摘要： An environmental radiation detector for detecting and distinguishing between all types of environmental radiation, including photons, charged particles, and neutrons. A large volume high pressure ionization chamber (HPIC) includes BF3 gas at a specific concentration to render the radiation detector sensitive to the reactions of neutron capture in Boron-10 isotope. A pulse-mode readout is connected to the ionization chamber capable of measuring both the height and the width of the pulse. The heavy charged products of the neutron capture reaction deposit significant characteristic energy of the reaction in the immediate vicinity of the reaction in the gas, producing a signal with a pulse height proportional to the reaction energy, and a narrow pulse width corresponding to the essentially pointlike energy deposition in the gas. Readout of the pulse height and the pulse width parameters of the signals enables distinguishing between the different types of environmental radiation, such as gamma (x-rays), cosmic muons, and neutrons.
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42.发明授权公开(公告)号：US09839114B2
公开(公告)日：2017-12-05
申请号：US15260101
申请日：2016-09-08
摘要： A method for the suppression of upstream-directed field emission in RF accelerators. The method is not restricted to a certain number of cavity cells, but requires similar operating field levels in all cavities to efficiently annihilate the once accumulated energy. Such a field balance is desirable to minimize dynamic RF losses, but not necessarily achievable in reality depending on individual cavity performance, such as early Q0-drop or quench field. The method enables a significant energy reduction for upstream-directed electrons within a relatively short distance. As a result of the suppression of upstream-directed field emission, electrons will impact surfaces at rather low energies leading to reduction of dark current and less issues with heating and damage of accelerator components as well as radiation levels including neutron generation and thus radio-activation.
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43.发明授权公开(公告)号：US09756715B2
公开(公告)日：2017-09-05
申请号：US14501920
申请日：2014-09-30
发明人： George Herman Biallas , Edward Daly
CPC分类号： H05H7/18 , H05H7/20 , H05H7/22 , H05H2007/225
摘要： A flange joint system for SRF cavities. The flange joint system includes a set of high force spring clamps that produce high force on the simple flanges of Superconducting Radio Frequency (SRF) cavities to squeeze conventional metallic seals. The system establishes the required vacuum and RF-tight seal with minimum particle contamination to the inside of the cavity assembly. The spring clamps are designed to stay within their elastic range while being forced open enough to mount over the flange pair. Upon release, the clamps have enough force to plastically deform metallic seal surfaces and continue to a new equilibrium sprung dimension where the flanges remain held against one another with enough preload such that normal handling will not break the seal.
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公开(公告)号：US20170190143A1
公开(公告)日：2017-07-06
申请号：US14753848
申请日：2015-06-29
发明人： Jin Ho Kang , Cheol Park , Godfrey Sauti , Michael W. Smith , Kevin C. Jordan , Sharon E. Lowther , Robert G. Bryant
CPC分类号： B32B5/26 , B32B2260/046 , B32B2262/0269 , B32B2264/107 , B32B2307/554 , B32B2307/558 , B32B2571/02 , B82Y30/00 , C08J5/005 , C08J5/046 , C08J2375/04 , D01D5/38 , D01F1/10 , F41H5/0414 , F41H5/0442 , F41H5/0471 , F41H5/0485
摘要： Boron nitride nanotubes (BNNTs), boron nitride nanoparticles (BNNPs), carbon nontubes (CNTs), graphites, or their combinations, are incorporated into matrices of polymer, ceramic or metals. Fibers, yarns, and woven or nonwoven mates of BNNTs are uses as toughening layers in penetration resistant materials to maximize energy absorption and/or high hardness layers to rebound or deform penetrators. They can be also uses as reinforcing inclusions combining with other polymer matrices to create composite layer like typical reinforcing fibers such as Kevlar®, Spectra®, ceramics and metals. Enhanced wear resistance and prolonged usage time, even under harsh conditions, are achieved by adding boron nitride nanomaterials because both hardness and toughness are increased. Such materials can be used in high temperature environments since the oxidation temperature of BNNTs exceeds 800° C. in air. Boron nitride based composite materials are useful as strong structural materials for anti-micrometeorite layers for spacecraft and space suits, ultra strong tethers, protective gear for the human body as well as for vehicles, helmets, shields and safety suits/helmets for industry.
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公开(公告)号：US09655227B2
公开(公告)日：2017-05-16
申请号：US14731887
申请日：2015-06-05
发明人： Shaoheng Wang , Robert Rimmer , Haipeng Wang
CPC分类号： H05H9/044 , H05H7/18 , H05H7/22 , H05H2007/225
摘要： A slot-coupled CW standing wave multi-cell accelerating cavity. To achieve high efficiency graded beta acceleration, each cell in the multi-cell cavity may include different cell lengths. Alternatively, to achieve high efficiency with acceleration for particles with beta equal to 1, each cell in the multi-cell cavity may include the same cell design. Coupling between the cells is achieved with a plurality of axially aligned kidney-shaped slots on the wall between cells. The slot-coupling method makes the design very compact. The shape of the cell, including the slots and the cone, are optimized to maximize the power efficiency and minimize the peak power density on the surface. The slots are non-resonant, thereby enabling shorter slots and less power loss.
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公开(公告)号：US09125287B2
公开(公告)日：2015-09-01
申请号：US14503554
申请日：2014-10-01
发明人： David R. Douglas
摘要： A separated-orbit bisected energy-recovered linear accelerator apparatus and method. The accelerator includes a first linac, a second linac, and a plurality of arcs of differing path lengths, including a plurality of up arcs, a plurality of downgoing arcs, and a full energy arc providing a path independent of the up arcs and downgoing arcs. The up arcs have a path length that is substantially a multiple of the RF wavelength and the full energy arc includes a path length that is substantially an odd half-integer multiple of the RF wavelength. Operation of the accelerator includes accelerating the beam utilizing the linacs and up arcs until the beam is at full energy, at full energy executing a full recirculation to the second linac using a path length that is substantially an odd half-integer of the RF wavelength, and then decelerating the beam using the linacs and downgoing arcs.
摘要翻译： 一种分离轨道二次能量回收的直线加速器装置及方法。 加速器包括第一线性加速器，第二直线加速器和不同路径长度的多个弧，包括多个向上弧线，多个向下的弧线以及提供独立于向上弧线和下行弧线的路径的全能量弧 。 上弧具有基本上是RF波长的倍数的路径长度，并且全能量电弧包括基本上是RF波长的奇数半整数倍的路径长度。 加速器的操作包括利用直线加速器和向上的弧加速光束，直到光束处于全能量，在全能量下使用基本上是RF波长的奇数半整数的路径长度执行到第二线性加速器的完全再循环， 然后使用直线加速器和下降弧来减速梁。
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47.发明申请Radiation Detector including an External-Modulated Electro-optical Coupling Detector Architecture for Nuclear Physics Instrumentation 审中-公开辐射检测器包括用于核物理仪器的外部调制电光耦合检测器结构公开(公告)号：US20150160351A1
公开(公告)日：2015-06-11
申请号：US14101596
申请日：2013-12-10
发明人： Wenze Xi
IPC分类号： G01T1/16
CPC分类号： G01R33/0327 , G01R33/0041 , G01R33/032
摘要： A compact radiation tolerant and magnetic field immune radiation detector including a detector front-end having an electro-optical coupling detector (EOCD) capable of operating within high radiation and strong magnetic fields and a back-end that can be located a substantial distance from the front-end and thus away from the high radiation and strong magnetic fields The back-end of the detector includes a multi-wavelength light source and at least one optical receiver. The EOCD in the front-end simultaneously modulates and multiplexes pulses from light sensors by transferring them to the optical domain and then transmitting them through a single-mode fiber to an optical receiver in the back-end. During the fiber transmission, relative phase, amplitude and timing information among multiplexed signals is maintained. High-index silica planar AWGs and electro-optical conversion modulators minimize the effects of radiation damage and ASICs contribute to the compactness of the front-end.
摘要翻译： 一种紧凑的辐射耐受和磁场免疫辐射检测器，其包括具有能够在高辐射和强磁场内操作的电光耦合检测器（EOCD）的检测器前端，以及可以位于远离 前端，从而远离高辐射强磁场检测器的后端包括多波长光源和至少一个光接收器。 前端的EOCD通过将光传感器传送到光学领域，然后通过单模光纤传输到后端的光接收器，同时调制和复用来自光传感器的脉冲。 在光纤传输期间，保持复用信号之间的相对相位，振幅和定时信息。 高折射率二氧化硅平面AWG和电光转换调制器使辐射损伤的影响最小化，ASIC有助于前端的紧凑性。
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48.发明授权Practical method and device for enhancing pulse contrast ratio for lasers and electron accelerators 有权用于增强激光和电子加速器的脉冲对比度的实际方法和装置公开(公告)号：US08842703B1
公开(公告)日：2014-09-23
申请号：US13385728
申请日：2012-03-05
申请人： Shukui Zhang , Guy Wilson
发明人： Shukui Zhang , Guy Wilson
IPC分类号： H01S3/10
CPC分类号： H01S3/005 , H01S3/0085 , H01S3/1106
摘要： An apparatus and method for enhancing pulse contrast ratios for drive lasers and electron accelerators. The invention comprises a mechanical dual-shutter system wherein the shutters are placed sequentially in series in a laser beam path. Each shutter of the dual shutter system has an individually operated trigger for opening and closing the shutter. As the triggers are operated individually, the delay between opening and closing first shutter and opening and closing the second shutter is variable providing for variable differential time windows and enhancement of pulse contrast ratio.
摘要翻译： 一种用于增强驱动激光器和电子加速器的脉冲对比度的装置和方法。 本发明包括机械双快门系统，其中百叶窗依次串联放置在激光束路径中。 双快门系统的每个快门具有用于打开和关闭快门的单独操作的触发器。 当触发器单独操作时，打开和关闭第一快门和打开和关闭第二快门之间的延迟是可变的，提供可变差分时间窗口和增强脉冲对比度。
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公开(公告)号：US08664630B1
公开(公告)日：2014-03-04
申请号：US13068597
申请日：2011-05-16
IPC分类号： G21C11/08
摘要： A thermal neutron shield comprising boron shielding panels with a high percentage of the element Boron. The panel is least 46% Boron by weight which maximizes the effectiveness of the shielding against thermal neutrons. The accompanying method discloses the manufacture of boron shielding panels which includes enriching the pre-cursor mixture with varying grit sizes of Boron Carbide.
摘要翻译： 一种热中子屏蔽，其包含具有高百分比元素硼的硼屏蔽板。 面板的重量百分比最低为46％，这样可以最大限度地提高屏蔽热中子的效能。 伴随的方法公开了硼屏蔽板的制造，其包括用不同的粒度的碳化硼丰富前体混合物。
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50.发明授权Upconverting nanoparticles for optimizing scintillator based detection systems 有权上转换纳米粒子用于优化基于闪烁体的检测系统公开(公告)号：US08536532B1
公开(公告)日：2013-09-17
申请号：US13199827
申请日：2011-09-09
申请人： Brian Kross , John E. (Jack) McKisson , John McKisson , Andrew Weisenberger , Wenze Xi , Carl Zom
发明人： Brian Kross , John E. (Jack) McKisson , John McKisson , Andrew Weisenberger , Wenze Xi , Carl Zom
IPC分类号： G01T1/20
CPC分类号： G01T1/16 , G01T1/2018
摘要： An upconverting device for a scintillation detection system is provided. The detection system comprises a scintillator material, a sensor, a light transmission path between the scintillator material and the sensor, and a plurality of upconverting nanoparticles particles positioned in the light transmission path.
摘要翻译： 提供了一种用于闪烁检测系统的上变频装置。 检测系统包括闪烁体材料，传感器，闪烁体材料和传感器之间的光传输路径以及位于光传输路径中的多个上变频纳米颗粒颗粒。
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