公开(公告)号：US20240272316A1

公开(公告)日：2024-08-15

申请号：US18569599

申请日：2021-07-12

申请人： UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA

发明人： Zhiyong ZHANG ,  Changqing FENG ,  Sicheng WEN ,  Jianbei LIU ,  Ming SHAO ,  Yi ZHOU

IPC分类号： G01T1/29 ,  G01T1/185 ,  G01T1/24 ,  H05K1/03 ,  H05K1/09

CPC分类号： G01T1/2935 ,  G01T1/185 ,  G01T1/241 ,  H05K1/0353 ,  H05K1/095

摘要： A gas detector fabrication method is provided. The method includes: fabricating a signal readout plate: fabricating metal readout electrodes on an upper end surface of a lower insulating layer, and covering upper end surfaces of the metal readout electrodes with an upper insulating layer; pressing the signal readout plate and performing surface processing: pressing the signal readout plate on a substrate, and making a side, distant from the substrate, of the upper insulating layer to be a plane; fabricating a resistive anode electrode: fabricating a resistive layer on an upper end surface of the signal readout plate, and fixing a low-resistance electrode ring to a periphery of an upper end surface of the resistive layer; and fabricating a detector amplification assembly: fixing a support frame to an upper end of the low-resistance electrode ring, and fixing a micro-grid electrode to an upper end of the support frame.

公开(公告)号：US20240136140A1

公开(公告)日：2024-04-25

申请号：US18381146

申请日：2023-10-16

申请人： Applied Materials, Inc.

发明人： Zhepeng CONG ,  Ashur J. ATANOS ,  Khokan C. PAUL ,  Tao SHENG

IPC分类号： H01J9/50 ,  G01T1/185

CPC分类号： H01J9/50 ,  G01T1/185 ,  G01J2001/4247

摘要： Embodiments of the present disclosure relates to methods, systems, and apparatus for monitoring radiation output of lamps of processing chambers. In some embodiments, a system contains a plurality of lamps coupled to a chamber, and one or more radiation sensors. Each lamp is identified with one or more zones, the radiation sensors are coupled to the chamber, where each radiation sensor is proximal at least one lamp. A controller contains instructions that, when executed, cause: the radiation sensors to convey, to the controller, information associated with radiation emitted by the lamps; the controller to analyze the information, the analyzing including: for each zone: determining a function of radiation over time; and monitoring the function for a condition associated with lamp aging; and the controller to, based on the analyzing the information, perform at least one of the following: vary input power delivered to the lamps; and generate an alert.

公开(公告)号：US11953630B2

公开(公告)日：2024-04-09

申请号：US16954764

申请日：2018-12-19

申请人： MURPHIL S.R.L.

发明人： Nicola Sabba ,  Elena Moretti

IPC分类号： G01T1/185 ,  A61K51/00 ,  A61N5/10

CPC分类号： G01T1/185 ,  A61K51/00 ,  A61N5/1001 ,  A61N2005/1021 ,  A61N2005/1094

摘要： A radiation detector, comprising two or more ionisation chambers (10), each of which comprises a main body (11), and which are arranged in such a way that the main bodies (11) delimit a measurement space (M) inside which a radiation source can be positioned.

公开(公告)号：US20240110655A1

公开(公告)日：2024-04-04

申请号：US18536136

申请日：2023-12-11

申请人： SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

发明人： Jonathan MALTZ ,  Johannes STAHL

IPC分类号： F16L51/00 ,  A61B6/00 ,  F16L51/02 ,  G01T1/185 ,  G05D16/20 ,  H01J47/02

CPC分类号： F16L51/00 ,  A61B6/44 ,  A61B6/54 ,  F16L51/02 ,  G01T1/185 ,  G05D16/2013 ,  G05D16/2066 ,  H01J47/02 ,  G01T1/02

摘要： A system for equalizing a pressure in an ionization chamber of a radiation device is provided. The system may include the ionization chamber including: a chamber housing including one or more chamber walls; a chamber volume inside the chamber housing, the chamber volume being filled with a radiation sensitive material; and a pressure adjustment apparatus operably coupled to the chamber volume via at least one wall of the one or more chamber walls, the pressure adjustment apparatus being configured to equalize a first pressure of the radiation sensitive material inside the chamber volume and a second pressure of ambient air outside the chamber housing.

公开(公告)号：US11860321B2

公开(公告)日：2024-01-02

申请号：US17508377

申请日：2021-10-22

申请人： MODUS MEDICAL DEVICES INC.

发明人： David John Munro Miller ,  Nicholas Gerard Hartman ,  Enzo Antonio Barberi

IPC分类号： G01T1/185 ,  G01T1/02 ,  A61N5/10

CPC分类号： G01T1/185 ,  A61N5/1071 ,  A61N5/1075 ,  G01T1/02 ,  A61N2005/1076

摘要： A radiation latency measurement system, having a pulse detector connected to a radiation detector mounted within a phantom that is configured to be positioned within a radiation treatment system which delivers a radiation dose to the radiation detector. The pulse detector has a first circuit that applies a high voltage bias to the radiation detector and a second circuit that amplifies the voltage signal from the radiation detector with a fixed gain first amplification stage and a variable gain second amplification stage. A first comparator receives the amplified signal and generates an output signal when the amplified signal exceeds a specified voltage level and a second comparator that processes and filters the output signal. The timing of receipt of the radiation dose signal may be compared to the position of the radiation detector in order to measure a radiation dose latency of the radiation treatment system.

公开(公告)号：US11630218B1

公开(公告)日：2023-04-18

申请号：US17141270

申请日：2021-01-05

申请人： National Technology & Engineering Solutions of Sandia, LLC

发明人： Brian Z. Bentz ,  Richard Karl Harrison ,  Benjamin Tong Yee ,  Norman Kolb ,  Jeffrey B. Martin ,  Sean Donovan Fournier ,  Oskar Fick Searfus ,  Christopher Murzyn ,  Christopher Blair Saltonstall, Jr.

IPC分类号： G01T1/185 ,  G01T1/02 ,  G06T11/00 ,  G01T1/164

摘要： A two-dimensional imaging system and a two-dimensional or three-dimensional optical tomographic mapping system, each employing gas scintillation induced by ionizing radiation, i.e., radioluminescence, and corresponding methods, are disclosed. The systems may employ one or more cameras and corresponding UV filters (potentially solar blind filters) for imaging a radioluminescent scene. For two-dimensional or three-dimensional mapping, the resultant UV images are spatially registered with one another and then reconstructed to form a three-dimensional tomographic map of the ionizing radiation. The two-dimensional map is a plane of the three-dimensional map. The UV images may be spatially registered by using a reference source, optionally, a calibrated reference source allowing dosimetry calculations for the ionizing radiation. Molecular nitrogen is the primary candidate for the radioluminescent gas, though a controlled ambient in a chamber of nitric oxide, argon, krypton, or xenon may be employed. The reconstruction process employs an algebraic reconstruction technique or an Abel inversion.

公开(公告)号：US11385360B2

公开(公告)日：2022-07-12

申请号：US15578743

申请日：2016-06-03

申请人： University Health Network

发明人： Mohammad Khairul Islam ,  Robert K. Heaton ,  David A. Jaffray ,  Bernhard Dieter Norrlinger

IPC分类号： G01T1/185 ,  H01J47/02 ,  G01T1/29

摘要： Various embodiments are described herein for sensors that may be used to measure radiation from radiation generating device. The sensors may use a collector plate electrode with first and second collection regions having shapes that are inversely related with one another to provide ion chambers with varying sample volumes along a substantial portion of the first and second collection regions which provides virtual spatial sensitivity during use.

公开(公告)号：US11204429B2

公开(公告)日：2021-12-21

申请号：US17124779

申请日：2020-12-17

申请人： Thermo Fisher Scientific Messtechnik Gmbh

发明人： Norbert Trost ,  Erich Leder ,  Reinhard Buchhold

IPC分类号： G01T1/15 ,  G01T1/185 ,  G01T1/02 ,  G01T1/36

摘要： A radiation dosimeter includes a first radiation detector configured to operate in a counting mode, and a second radiation detector configured to operate in a current mode. A processor is configured to calculate a first detected dose of the first radiation detector, a second detected dose of the second radiation detector, and a total dose value using the first detected dose and the second detected dose. An alarm indicates when the total dose value is above a predetermined level.

公开(公告)号：US20210364656A1

公开(公告)日：2021-11-25

申请号：US17340913

申请日：2021-06-07

申请人： BEAMOCULAR AB

发明人： Kristofer Maad ,  Mauritz Andersson

IPC分类号： G01T1/185 ,  G01T1/29 ,  G01T1/17

摘要： The invention relates to a detecting unit for detecting ionizing radiation. The device comprises a converter unit for the amplification of ionizing radiation and a read-out unit, wherein the converter unit comprises a converter and a gas-electron multiplier, wherein said converter comprises a substrate with an ionizing radiation-receiving major surface and an electron-emitting major surface and a stack of accelerator plates in contact with the electron-emitting major side, wherein said stack comprises a plurality of perforated accelerator plates wherein the perforations of the perforated accelerator plates are aligned to form a matrix of blind holes.

公开(公告)号：US11150359B2

公开(公告)日：2021-10-19

申请号：US17005841

申请日：2020-08-28

申请人： DAI NIPPON PRINTING CO., LTD.

发明人： Tomohisa Motomura ,  Osamu Shimada ,  Ryoichi Ohigashi

IPC分类号： G01T1/18 ,  G01T1/185

摘要： A Detection element includes a substrate having a first surface and a second surface opposing the first surface, substrate comprising: a substrate provided with a through hole having inner diameters that differ from each other at two points along the thickness of substrate; a through electrode disposed in through hole; a first electrode connected to through electrode and disposed on the first surface; a patterned electrode connected to through electrode and disposed on the second surface; and a second electrode disposed on the first surface and spaced apart from the first electrode.