公开(公告)号：US11881391B1

公开(公告)日：2024-01-23

申请号：US17402171

申请日：2021-08-13

申请人： Radiation Monitoring Devices, Inc. ,  University of Chicago ,  Brookhaven Science Associates, LLC

发明人： Harish B. Bhandari ,  Vivek V. Nagarkar ,  Olena E. Ovechkina ,  Henry J. Frisch ,  Klaus Attenkofer ,  John M. Smedley

IPC分类号： H01J9/12 ,  H01J1/34 ,  H02S50/15 ,  C23C14/34 ,  C23C14/54 ,  C23C14/00 ,  C23C14/06 ,  C30B23/02 ,  C30B29/40 ,  C23C14/02 ,  C23C14/16 ,  G01N21/63

CPC分类号： H01J9/12 ,  C23C14/0036 ,  C23C14/025 ,  C23C14/06 ,  C23C14/165 ,  C23C14/3414 ,  C23C14/545 ,  C23C14/548 ,  C30B23/02 ,  C30B29/40 ,  G01N21/63 ,  H01J1/34 ,  H02S50/15

摘要： Methods and systems for fabricating a film, such as, for example, a photocathode, having a tailored band structure and thin-film components that can be tailored for specific applications, such as, for example photocathode having a high quantum efficiency, and simple components fabricated by those methods.

公开(公告)号：US20230260736A1

公开(公告)日：2023-08-17

申请号：US17671135

申请日：2022-02-14

申请人： UCHICAGO ARGONNE, LLC

发明人： Jeffrey W. Elam ,  Anil U. Mane ,  Mark Popecki ,  Michael Minot

IPC分类号： H01J9/12 ,  H01J43/24 ,  H01J9/42 ,  C23C16/455 ,  C23C16/40

CPC分类号： H01J9/125 ,  H01J43/246 ,  H01J9/42 ,  C23C16/45553 ,  C23C16/403 ,  C23C16/45527

摘要： A secondary electron emissive layer resistant to infiltration and fouling. A barrier layer is formed by atomic layer deposition. The barrier layer may be an emissive layer and/or an interlayer. The barrier layer may form an interlayer that is a part of an electron amplifier positioned between an emissive layer and a resistive layer. The barrier layer is resistive to fluorine migration from either the emissive layer or the resistive layer.

公开(公告)号：US20230187161A1

公开(公告)日：2023-06-15

申请号：US17923949

申请日：2021-04-15

申请人： NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITY ,  HAMAMATSU PHOTONICS K.K.

发明人： Atsushi NAKAMURA ,  Yusuke NODA

IPC分类号： H01J1/34 ,  H01J9/12 ,  H01J43/08

CPC分类号： H01J1/34 ,  H01J9/12 ,  H01J43/08

摘要： A photocathode 4 includes an optically transparent conductive layer provided between a translucent substrate and a photoelectric conversion layer. The optically transparent conductive layer is formed of a constituent material including carbon. A Raman spectrum of the constituent material has a peak of a band, a peak of a band, a peak of a band, and a peak of a band.

公开(公告)号：US20220336179A1

公开(公告)日：2022-10-20

申请号：US17639277

申请日：2020-08-28

申请人： KOBELCO RESEARCH INSTITUTE, INC.

发明人： Kenji KOGA ,  Toshiaki TAKAGI ,  Fumiaki KUDO ,  Tatsuhiko KUSAMICHI

IPC分类号： H01J1/146 ,  H01J1/304 ,  H01J1/34 ,  H01J9/02 ,  H01J9/04 ,  H01J9/12 ,  C22C5/04 ,  B22F9/04 ,  B22F3/10 ,  C30B29/52

摘要： The cathode member for electron beam generation of the present disclosure includes: 95% by area or more of a single phase or two phases of a compound composed of iridium and cerium. A total content of one or more subcomponents of metallic iridium and an oxide of one or more elements of iridium and cerium is 5% by area or less of the cathode member.

公开(公告)号：US20220068585A1

公开(公告)日：2022-03-03

申请号：US17006496

申请日：2020-08-28

申请人： GE Precision Healthcare LLC

发明人： Andrew Thomas Cross ,  Uwe Wiedmann ,  Marshall Gordon Jones ,  Carey Rogers ,  John Scott Price ,  Joseph Darryl Michael ,  Sergio Lemaitre ,  Fulton Jose Lopez ,  Vasile Bogdan Neculaes ,  Steve Buresh ,  David Wagner

IPC分类号： H01J35/06 ,  H01J9/12

摘要： Various systems and methods are provided for a biased cathode assembly of an X-ray tube with improved thermal management and a method of manufacturing same. In one example, a cathode assembly of an X-ray tube comprises an emitter assembly including an emitter coupled to an emitter support structure, and an electrode assembly including an electrode stack and a plurality of bias electrodes. The emitter assembly including a plurality of independent components that are coupled together. The electrode assembly including a plurality of independent components that are coupled together, and the emitter assembly being coupled to the electrode assembly.

公开(公告)号：US20210358730A1

公开(公告)日：2021-11-18

申请号：US17262346

申请日：2019-07-18

申请人： SKYFINIS, INC.

发明人： Joseph K. Hosea ,  Omar Hadjar ,  Lei Sun

IPC分类号： H01J43/20 ,  H01J9/12

摘要： Techniques produce integrated native metal oxide discrete elements which can be used to fabricate discrete dynode electron multiplier (DDEM) devices, for example by creating dynodes with a native oxide as secondary electron emissive (SEE) layer from a metal block. The metal block may comprise or consist of a metal base component, for example Al, Al alloys or BeCu, of metal oxide SEE materials Al2O3 or BeO. Growing a native oxide from these base metals, Al2O3 or BeO eliminates the need of a costly and time-consuming SEE coating on the dynode surface. Furthermore, aluminum alloys offer intrinsic dopant, in particular magnesium where its oxide provides a higher secondary electron yield than the aluminum oxide. The use of aluminum, its alloys or BeCu material block allows flexibility in design and fabrication of DDEM without an SEE coating process.

公开(公告)号：US20210118640A1

公开(公告)日：2021-04-22

申请号：US17071501

申请日：2020-10-15

申请人： United States Department of Energy

发明人： Mengjia Gaowei ,  John Smedley ,  John Walsh ,  Jiajie Cen ,  John Jay Sinsheimer

IPC分类号： H01J9/12 ,  C01B19/00 ,  C23C14/06 ,  C23C14/24 ,  C23C14/52

摘要： One or more embodiments relates to a system and method for growing ultrasmooth and high quantum efficiency photocathodes. The method includes exposing a substrate of Si wafer to an alkali source; controlling co-evaporating growth and co-deposition forming a growth including Te; and monitoring a stoichiometry of the growth, forming the photocathodes.

公开(公告)号：US10763092B2

公开(公告)日：2020-09-01

申请号：US15826489

申请日：2017-11-29

申请人： L-3 Communications Corporation-Insight Technology Division

发明人： Jon Burnsed ,  Stephen Styonavich

IPC分类号： G01J1/04 ,  H01J43/04 ,  G01J1/44 ,  H01J9/12 ,  H01J31/50

摘要： A dual-spectrum photocathode capable of emitting photo-electrons into a first vacuum space includes a first photodetector array formed using a first optoelectronic material that generates photo-electrons responsive to incident electromagnetic energy in a first spectral band. The dual-spectrum photocathode also includes a second photodetector array formed using a second optoelectronic material that generates photo-electrons responsive to incident electromagnetic energy in a second spectral band that is different from the first spectral band. The first spectral band may include the visible electromagnetic spectrum between 390 nanometers and 700 nanometers and the second spectral band may include the short-wave infrared (SWIR) electromagnetic spectrum above 900 nanometers.

公开(公告)号：US20180247802A1

公开(公告)日：2018-08-30

申请号：US15756217

申请日：2016-08-09

申请人： HAMAMATSU PHOTONICS K.K.

发明人： Takaaki NAGATA ,  Yasumasa HAMANA ,  Hajime NISHIMURA ,  Kimitsugu NAKAMURA

IPC分类号： H01J43/24 ,  H01J9/12

CPC分类号： H01J43/246 ,  H01J9/125 ,  H01J43/24 ,  H01J2201/32

摘要： A microchannel plate is provided with a substrate including a front surface, a rear surface, and a side surface, a plurality of channels penetrating from the front surface to the rear surface of the substrate, a first film provided on at least an inner wall surface of the channel, a second film provided on the first film, and electrode layers provided on the front surface and the rear surface of the substrate. The first film is made of Al2O3. The second film is made of SiO2. The first film is thicker than the second film.

公开(公告)号：US09881762B2

公开(公告)日：2018-01-30

申请号：US14976083

申请日：2015-12-21

申请人： International Business Machines Corporation

发明人： Ravi K. Bonam

IPC分类号： H01J1/34 ,  H01J37/073 ,  H01J9/12 ,  H01J37/317

CPC分类号： H01J1/34 ,  H01J9/12 ,  H01J37/073 ,  H01J37/3174 ,  H01J2237/06333 ,  H01J2237/31774 ,  H01J2237/31779

摘要： A scalable, integrated multi-level photoemitter device of tapered design and method of manufacture using conventional CMOS manufacturing techniques. The photoemitter device has a tapered multi-level structure formed in a material layer of a substrate, each level comprising a layer of photoemissive material and a connecting portion, said connecting portion for connecting to an adjacent photoemissive material layer of a next successive level. A first photoemissive material layer of a first level is of a configuration having a first length or width dimension; and each successive layer includes a photoemissive material layer of successively smaller length or width dimensions