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71. 发明申请

WO2022200761A1 HEAT EXCHANGER FOR CRYOGENIC COOLING APPARATUS 审中-公开
公开(公告)号：WO2022200761A1
公开(公告)日：2022-09-29
申请号：PCT/GB2022/050501
申请日：2022-02-23
申请人： OXFORD INSTRUMENTS NANOTECHNOLOGY TOOLS LIMITED
发明人： MATTHEWS, Anthony
IPC分类号： F25B9/12 , F25B9/10 , F25B9/14 , F25D19/00
摘要： A heat exchanger for a cryogenic cooling apparatus is provided. The heat exchanger has a first conduit, a second conduit and a chamber, wherein the chamber is arranged to receive a fluid from the first conduit, and wherein second conduit is thermally coupled to the outside of the chamber. The chamber has a first region and a second region, the first region separated from the second region by a plate extending through the chamber, the plate comprising one or more apertures for allowing a flow of the fluid from the first region to the second region.

72. 发明申请

WO2022008924A1 MATERIAL ANALYSIS WITH MULTIPLE DETECTORS 审中-公开
公开(公告)号：WO2022008924A1
公开(公告)日：2022-01-13
申请号：PCT/GB2021/051752
申请日：2021-07-08
申请人： OXFORD INSTRUMENTS NANOTECHNOLOGY TOOLS LIMITED
发明人： BURGESS, Simon , BHADARE, Santokh , TYRRELL, Chris , STATHAM, Peter
IPC分类号： G01N23/2208 , H01J37/244 , G01N23/2252
摘要： A detector module for use in an apparatus for analysing a specimen is provided. The detector module comprises a plurality of X-ray sensor elements and one or more electron sensor elements, and is adapted to be positioned below a polepiece of an electron beam assembly of the apparatus from which an electron beam generated by the assembly emerges towards a specimen in use, such that the detector module receives X-rays and backscattered electrons generated by interaction between the electron beam and the specimen. Each of the plurality of X-ray sensor elements is configured to monitor energies of individual received X- ray photons, and the plurality of X-ray sensor elements have a total active area greater than 20 mm2. The radial extent of the detector module with respect to the electron beam axis in use is less than 10 mm for at least a first portion of the detector module. An apparatus and method for analysing a specimen are also provided.

73. 发明申请

WO2021170976A1 CRYOGENIC COOLING SYSTEM AND AN INSERT THEREFOR 审中-公开
公开(公告)号：WO2021170976A1
公开(公告)日：2021-09-02
申请号：PCT/GB2021/050376
申请日：2021-02-16
申请人： OXFORD INSTRUMENTS NANOTECHNOLOGY TOOLS LIMITED
发明人： MATTHEWS, Anthony , POOLE, Timothy , WILKINSON, Chris
IPC分类号： F25B9/10 , F17C3/08 , F25B9/12 , F25B9/14 , F25D19/00
摘要： A cryogenic cooling system is provided comprising a primary insert (118) and a demountable secondary insert (128). The primary insert (118) comprises a plurality of primary plates (111, 112), each primary plate having a primary contact surface, and one or more primary connecting members (117) arranged so as to connect the plurality of primary plates (111, 112). The demountable secondary insert (128) comprises a plurality of secondary plates (121, 122), each secondary plate having a secondary contact surface, and one or more secondary connecting members (127) arranged so as to connect the plurality of secondary plates (121, 122) such that the secondary insert (128) is self-supporting. One or more adjustment members are configured such that, when the secondary insert (128) is mounted to the primary insert (118), the adjustment members cause the primary and secondary contact surfaces of the respective primary (111, 112) and secondary plates (121, 122) to be brought into conductive thermal contact.

74. 发明申请

WO2021058940A1 QUENCH PROTECTION ARRANGEMENT 审中-公开
公开(公告)号：WO2021058940A1
公开(公告)日：2021-04-01
申请号：PCT/GB2020/052282
申请日：2020-09-21
申请人： OXFORD INSTRUMENTS NANOTECHNOLOGY TOOLS LIMITED
发明人： VARNEY, Andrew , TWIN, Andy , WARREN, Dave , VIZNICHENKO, Roman
IPC分类号： H01C13/02 , G01R33/3815
摘要： A quench protection arrangement for a superconducting magnet is disclosed. The arrangement comprises: a superconducting magnet comprising a plurality of magnet sections; a plurality of varistors, wherein each of the plurality of varistors is electrically connected in parallel across a respective one of the plurality of magnet sections; and a heater arrangement electrically connected to the plurality of varistors and configured to apply heat to each of the plurality of magnet sections in response to a change in a voltage across any one or more of the plurality of varistors. A method of protecting a superconducting magnet is also disclosed.

75. 发明申请

WO2019030526A1 COLLISION AVOIDANCE FOR PARTICLE BEAM INSTRUMENTS 审中-公开
公开(公告)号：WO2019030526A1
公开(公告)日：2019-02-14
申请号：PCT/GB2018/052266
申请日：2018-08-09
申请人： OXFORD INSTRUMENTS NANOTECHNOLOGY TOOLS LIMITED
发明人： SWAN, Stuart Andrew , MOLDOVAN, Grigore , BEWICK, Angus
IPC分类号： G01N23/2251 , H01J37/26
摘要： A system for preventing collisions between components in a particle beam instrument is disclosed. The system is particularly beneficial in use with instruments wherein moveable components are used within a chamber that obscures them from being viewed from outside the chamber. The system comprises: a capacitance sensor configured to monitor the capacitance between a first component and a second component of the instrument, and a proximity module configured to: derive a capacitance parameter from the monitored capacitance between the first component and the second component; and output a proximity alert signal in accordance with a comparison between the derived capacitance parameter and a predetermined capacitance parameter threshold value.

76. 发明申请

WO2017216519A1 METHOD OF FORMING A HEAT SWITCH 审中-公开
标题翻译：形成热交换器的方法
公开(公告)号：WO2017216519A1
公开(公告)日：2017-12-21
申请号：PCT/GB2017/051611
申请日：2017-06-05
申请人： OXFORD INSTRUMENTS NANOTECHNOLOGY TOOLS LIMITED
发明人： MATTHEWS, Anthony
IPC分类号： F25D19/00 , G05D23/02 , F28F13/00
摘要： A method for forming a gas gap heat switch is provided comprising the following steps: (a) providing first and second conductors, and first and second connecting members, wherein the connecting members each have a thermal conductivity at least five times smaller than that of the conductors when at a temperature of 100K; (b) fusing the first conductor to the first connecting member and the second conductor to the second connecting member; (c) aligning the conductors such that the first and second conductors extend along a common major axis; (d) bringing proximal ends of the aligned conductors into contact with each other when said conductors are at a first temperature; and (e) joining the first connecting member to the second connecting member so as to form a chamber around at least the proximal ends of the conductors. The connecting members forming the chamber each have a coefficient of thermal expansion that is less than that of the conductors such that, when the conductors are cooled to a second temperature which is below the first temperature, the length of the conductors along the major axis decreases with respect to the length of the chamber along the major axis so as to form a gap between the proximal ends of the conductors. The switch is also arranged to selectively provide a thermally conductive gas into the chamber when in use to cause operation of the switch.
摘要翻译：提供了一种用于形成气隙热开关的方法，该方法包括以下步骤：（a）提供第一和第二导体以及第一和第二连接构件，其中连接构件各自具有在当温度为100K时，导体至少小于导体的5倍; （b）将所述第一导体与所述第一连接构件以及所述第二导体熔合至所述第二连接构件; （c）对准导体，使得第一和第二导体沿共同的主轴线延伸; （d）当所述导体处于第一温度时，使对齐的导体的近端彼此接触; （e）将所述第一连接构件连接到所述第二连接构件，以便在所述导体的至少近端周围形成腔室。形成腔室的连接构件各自具有小于导体的热膨胀系数，使得当导体被冷却到低于第一温度的第二温度时，导体沿着主轴的长度减小相对于腔室沿长轴的长度，以便在导体的近端之间形成间隙。开关还被安排成在使用时选择性地将导热气体提供到室中以引起开关的操作。

77. 发明申请

WO2016016658A1 TOTAL RELEASE METHOD FOR SAMPLE EXTRACTION IN AN ENERGETIC-BEAM INSTRUMENT 审中-公开
标题翻译：在放射性能仪器中提取样品的总释放方法
公开(公告)号：WO2016016658A1
公开(公告)日：2016-02-04
申请号：PCT/GB2015/052220
申请日：2015-07-31
申请人： OXFORD INSTRUMENTS NANOTECHNOLOGY TOOLS LIMITED
发明人： KRUGER, Rocky , HARTFIELD, Cheryl , AMADOR, Gonzalo
IPC分类号： H01J37/305 , H01J37/20
CPC分类号： G01N1/28 , G01N1/286 , G01N2001/2873 , H01J37/20 , H01J37/3056 , H01J2237/208 , H01J2237/3109 , H01J2237/31745 , H01J2237/31749
摘要： A substrate located in an energetic-beam instrument has a region of interest to be extracted as a sample for further analysis. Cuts are made in the substrate to define a sample, and a stress-buffer layer is formed over the region of interest or adjacent to it. An isolating cut is made to separate the portion of the substrate containing the region of interest from the bulk substrate; however, the isolated area remains attached to the stress- buffer layer. An end-effector, such as the probe of a nano-manipulator, is attached to the stress-buffer layer, and the stress-buffer layer is cut to free the sample. The sample may then be attached to a holder by attachment of the stress-buffer layer thereto. Thus the sample is never at the same time connected directly and rigidly to two different objects that may move relatively to one another, creating undesirable stresses in the sample.
摘要翻译：位于能量束仪器中的衬底具有待提取的区域作为样品用于进一步分析。在衬底中制备切口以限定样品，并且在感兴趣区域或其附近形成应力缓冲层。进行隔离切口以将包含感兴趣区域的基板的部分与本体基板分离; 然而，隔离区域仍然附着在应力缓冲层上。诸如纳米操纵器的探针的末端执行器附接到应力缓冲层，并且切割应力缓冲层以释放样品。然后可以通过将应力缓冲层附着到样品上而将样品连接到保持器。因此，样品永远不会同时直接和刚性连接到可能相对移动的两个不同的物体，从而在样品中产生不希望的应力。

78. 发明申请

WO2013045929A3 APPARATUS AND METHOD FOR CONTROLLING A CRYOGENIC COOLING SYSTEM 审中-公开
公开(公告)号：WO2013045929A3
公开(公告)日：2013-04-04
申请号：PCT/GB2012/052395
申请日：2012-09-27
申请人： OXFORD INSTRUMENTS NANOTECHNOLOGY TOOLS LIMITED
发明人： GARSIDE, John , BUEHLER, Matthias , TORTORELLA, Daniele , YUAN, Xing
IPC分类号： F25B9/14
摘要： Apparatus for controlling a cryogenic cooling system is described. A supply gas line (3A) and a return gas line (3B) are provided which are coupled to a compressor (1) and to a mechanical refrigerator (2) via a coupling element (4). The coupling element is in gaseous communication with the supply (2A) and return gas lines and supplies gas to the mechanical refrigerator (2). The pressure of the supplied gas is modulated by the coupling element in a cyclical manner. A pressure sensing apparatus (6) monitors the pressure in at least one of the supply and return gas lines. A control system (5) is used to modulate the frequency of the cyclical gas pressure supplied by the coupling element in accordance with the pressure monitored by the pressure sensing apparatus. An associated method of controlling such a system is also described.

79. 发明申请

WO2012066312A2 COOLING APPARATUS AND METHOD 审中-公开
标题翻译：冷却装置和方法
公开(公告)号：WO2012066312A2
公开(公告)日：2012-05-24
申请号：PCT/GB2011/052201
申请日：2011-11-11
申请人： OXFORD INSTRUMENTS NANOTECHNOLOGY TOOLS LIMITED , TELEBERG, Pär Gustav , MATTHEWS, Anthony , ELFORD, Justin
发明人： TELEBERG, Pär Gustav , MATTHEWS, Anthony , ELFORD, Justin
CPC分类号： F25B41/00 , F25B9/10 , F25B2500/26 , F25D19/006 , F28D15/02 , F28D15/0275
摘要： Cooling apparatus is provided which comprises a mechanical refrigerator and a heat pipe. The mechanical refrigerator has a first cooled stage and a second cooled stage, the second cooled stage being adapted to be coupled thermally with target apparatus to be cooled. The heat pipe has a first part coupled thermally to the first stage of the mechanical refrigerator and a second part coupled thermally to a cooled member which may comprise the second stage of the mechanical refrigerator. The heat pipe is adapted to contain a condensable gaseous coolant when in use. An example coolant is Krypton. The apparatus is operated in a first cooling mode in which the temperature of the cooled member causes the coolant within the second part of the heat pipe to be gaseous and the temperature of the first stage causes the coolant in the first part to condense, whereby the cooled member is cooled by the movement of the condensed liquid from the first part to the second part of the heat pipe. When the cooled member is the second stage of the mechanical refrigerator, the heat pipe provides heat between the higher and lower temperature cooled stages during cooling. An associated method of operating such apparatus is also described.
摘要翻译：提供了包括机械制冷机和热管的冷却装置。机械制冷机具有第一冷却级和第二冷却级，第二冷却级适于与要冷却的目标装置热耦合。热管具有与机械式冷冻机的第一级热耦合的第一部分和与能够包括机械式冰箱的第二级的冷却部件热耦合的第二部分。热管在使用时适于容纳可冷凝的气态冷却剂。一个例子冷却液是氪气。该装置在第一冷却模式下操作，其中冷却部件的温度使得热管的第二部分内的冷却剂为气态，第一阶段的温度使得第一部分中的冷却剂冷凝，由此，冷却的构件通过冷凝液体从热管的第一部分移动到第二部分而被冷却。当冷却部件是机械式冷冻机的第二级时，热管在冷却期间在较高和较低温度的冷却级之间提供热量。还描述了操作这种装置的相关方法。

80. 发明公开

US20240167739A1 HEAT EXCHANGER FOR CRYOGENIC COOLING APPARATUS 审中-公开
公开(公告)号：US20240167739A1
公开(公告)日：2024-05-23
申请号：US18282636
申请日：2022-02-23
申请人： Oxford Instruments Nanotechnology Tools Limited
发明人： Anthony Matthews
IPC分类号： F25B40/02 , F25B9/12
CPC分类号： F25B40/02 , F25B9/12
摘要： A heat exchanger for a cryogenic cooling apparatus is provided. The heat exchanger has a first conduit, a second conduit and a chamber, wherein the chamber is arranged to receive a fluid from the first conduit, and wherein second conduit is thermally coupled to the outside of the chamber. The chamber has a first region and a second region, the first region separated from the second region by a plate extending through the chamber, the plate comprising one or more apertures for allowing a flow of the fluid from the first region to the second region.

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