公开(公告)号：US20240219586A1

公开(公告)日：2024-07-04

申请号：US18289212

申请日：2022-05-05

申请人： Airthings ASA

发明人： Dag Mattis PETTERSEN

IPC分类号： G01T1/178

CPC分类号： G01T1/178

摘要： A method of monitoring radon in an area, comprising: acquiring a series of radon measurements for the area; obtaining a characteristic value relating to ventilation in the area; and calculating a weighted average from the series of radon measurements. Using a characteristic of the ventilation to calculate the weights allows some knowledge of the ventilation rate to be used in the averaging process so as to improve the quality of the averaged data. With a high ventilation rate, the radon level drops rapidly, with the removal of radon by ventilation dominating any radon source, and so an average can be more strongly weighted towards the current value. With a low ventilation rate, the removal of radon slows and so the noise in the data is taken into account. Combining the actual radon measurements with knowledge of the ventilation rate allows the averaging function to provide better time resolution.

公开(公告)号：US12013500B2

公开(公告)日：2024-06-18

申请号：US16973418

申请日：2019-10-24

申请人： FTLAB CO., LTD.

发明人： Jae Jun Ko ,  Young Gweon Kim

IPC分类号： G01T1/185 ,  G01T1/178 ,  G01T1/24 ,  H01J47/02

CPC分类号： G01T1/185 ,  G01T1/178 ,  G01T1/24 ,  H01J47/026

摘要： An apparatus for measuring radon and thoron using an ionization chamber is proposed. The apparatus includes: a pump for air inflow suctioning and sending external air to at least one channel; a first sensor module outputting an alpha particle detection signal of an electrical signal by detecting alpha (α) particles discharged from radon and thoron; an air inflow delay module delaying air for a predetermined delay time and then outputting the air; a second sensor module outputting an alpha particle detection signal of an electrical signal by detecting alpha (α) particles discharged from radon and thoron; and a control module discriminating normal or abnormal alpha particle detection signals, counting the normal alpha particle detection signals discriminated for a predetermined measurement time, and calculating radioactive ray concentration values on the basis of the counted number of times of the normal alpha particle detection signals.

公开(公告)号：US11808748B2

公开(公告)日：2023-11-07

申请号：US16808129

申请日：2020-03-03

申请人： FORMATIVE HOLDINGS, LLC

发明人： Travis A. Jewell

IPC分类号： G01N33/00 ,  G01N1/22 ,  G01T1/17 ,  G01T1/167 ,  G01T1/16 ,  G01T1/178

CPC分类号： G01N33/0055 ,  G01N1/2273 ,  G01T1/16 ,  G01T1/167 ,  G01T1/17 ,  G01T1/178

摘要： A method of detecting radon may include starting a first timer at a radon detection device in response to a first triggering action. A seal of the radon detection device may transition to a seal position from an open position in response to the first timer being equal to a measurement interval. The open position may facilitate the introduction of ambient air to a vent of the radon detection device. The seal position may discourage introduction of the ambient air to the vent. The vent may be in fluid communication with a test material. The test material may collect radon from the ambient air introduced to the radon detection device. A second timer may be started in response to the seal transitioning from the open position to the seal position. The seal remains in the sealed position following the transition from the open position to the sealed position.

公开(公告)号：US11719833B2

公开(公告)日：2023-08-08

申请号：US17832641

申请日：2022-06-04

申请人： ARIM SCIENCE CO.

发明人： Sang In Kim ,  Hyun Keun Lim ,  Eun Jung Yun

IPC分类号： G01T1/178 ,  G01T7/04

CPC分类号： G01T1/178 ,  G01T7/04

摘要： Disclosed are a radon measuring apparatus and method. A radon measuring apparatus according to the present invention can comprise: a housing having two separate spaces and through holes formed such that each space communicates with the outside; a probe unit having first and second probe rods which are respectively disposed inside each space in the opposite direction from each other inside the housing; a control unit disposed inside the housing and connected to the probe unit; and a switching unit for controlling the electrical connection between the first and second probe rods.

公开(公告)号：US11480693B2

公开(公告)日：2022-10-25

申请号：US16674649

申请日：2019-11-05

申请人： FTLAB co., LTD.

发明人： Jae-Jun Ko ,  Young-Gweon Kim

IPC分类号： G06Q30/04 ,  G01T1/178 ,  G06Q30/06

摘要： A billing system based on radon concentration pattern analysis and a method therefor is provided, the system including a radon detection device counting the output alpha particle detection signals for a predetermined measurement time to calculate a radon concentration value; and a cloud server storing generating a radon concentration pattern corresponding to the radon detection device by using a radon concentration value received from the radon detection device and calculating a cost for radon monitoring service provided to a terminal of the user, wherein the cloud server analyzes the generated radon concentration pattern and determines the periodic behavior pattern of the user for a predetermined period of time, whereby it is possible to charge a radon monitoring service fee for each user using the radon monitoring service, and the user may be motivated to frequently perform the ventilation action that reduces the radon concentration.

公开(公告)号：US20210405229A1

公开(公告)日：2021-12-30

申请号：US17320548

申请日：2021-05-14

申请人： NuCare, Inc.

发明人： Jinhun Joung ,  Yongkwon Kim

IPC分类号： G01T7/02 ,  G01T1/178

摘要： An apparatus for analyzing nuclides and the concentration thereof in waste contained in a radioactive waste packaging container according to the present disclosure relates to an apparatus that has detector devices located above/under the waste packaging container and performs nuclide and concentration analysis on the waste in the packaging container by scanning the packaging container in the longitudinal direction thereof using a forward/backward driving device. In particular, upper/lower detector modules are equipped with multiple high-resolution gamma ray detectors to increase inspection efficiency, each module is designed to be driven up/down, and each detector in the module is designed to be driven left/right, thereby performing nuclide and concentration analysis on various types of packaging containers regardless of the size thereof.

公开(公告)号：US11169282B2

公开(公告)日：2021-11-09

申请号：US16331240

申请日：2017-09-07

申请人： Atomic Energy of Canada Limited / Énergie Atomique du Canada Limitée

发明人： Bhaskar Sur ,  Gang Li ,  Ghaouti Bentoumi ,  Liqian Li

IPC分类号： G01T1/22 ,  G08C23/04 ,  G01T1/20 ,  G01D21/00 ,  G01T1/178 ,  G01T1/204 ,  G01T1/208 ,  G21C17/108

摘要： An apparatus for use in making localized passive measurements of electromagnetic radiation emitted from an object located in a radioactive environment includes a hollow elongate conduit having a first end, a second end, and a reflective inner surface. The first end of the conduit is positionable in the radioactive environment proximate the object, and the second end of the conduit is positionable outside the radioactive environment. The conduit has at least one bend between the first end and the second end, such that light entering the first end of the conduit is reflected by the inner surface of the conduit at least once as it travels through the conduit before reaching the second end. A detector in optical communication with the second end of the conduit is configured to detect electromagnetic radiation that reaches the second end.

公开(公告)号：US11016201B2

公开(公告)日：2021-05-25

申请号：US16650542

申请日：2018-12-12

申请人： ISQUARE INC.

发明人： Ji Sung Kwon ,  Jung Ho Hwang

IPC分类号： G01T1/178 ,  G01T1/185

摘要： Disclosed is a radiation measuring device capable of measuring concentration of radiation contained in indoor air. The radiation measuring device according to the present invention includes: an ionization chamber configured to be supplied with a voltage and to form a space for ionizing air introduced; a substrate assembly coupled to the ionization chamber and transfer the voltage supplied from the outside to the ionization chamber; a probe member provided in the ionization chamber and configured to detect an electric charge in the ionization chamber; and a switching element connected to the probe member and configured to allow a current to flow when the electric charge is applied to the probe member.

公开(公告)号：US10962659B2

公开(公告)日：2021-03-30

申请号：US16174016

申请日：2018-10-29

申请人： STMicroelectronics S.r.l.

发明人： Sara Loi ,  Alberto Pagani

IPC分类号： G01T1/178 ,  G01N15/02 ,  G01N15/06 ,  G01T1/24 ,  G01T1/29 ,  F04B19/06 ,  F04B37/00 ,  G01N15/00 ,  G01N15/10 ,  G01N1/22

摘要： A process for manufacturing an optical system includes forming a first hydrophobic surface at a semiconductor substrate, providing a first drop of transparent material having a first shape on the first hydrophobic surface, and allowing the first drop to harden to form a first optical element having the first shape. The optical system may be a particle detector, and the process may optionally further include forming a light source at the semiconductor substrate configured to generate a light beam that passes through the first optical element and a cavity to a photodetector.

公开(公告)号：US10725005B2

公开(公告)日：2020-07-28

申请号：US15981717

申请日：2018-05-16

申请人： Xiaowei Zhang

发明人： Xiaowei Zhang ,  Jiangrong Wu ,  Sabatino Nacson

IPC分类号： G01N33/00 ,  G01T1/178 ,  G01T1/185

摘要： A tritium-in-air measuring apparatus for measuring a concentration of tritium in air, the measuring apparatus comprising a sensing apparatus for sensing the concentration of tritium in the air and producing at least one signal representing the concentration; a signal processing apparatus, operatively connected to the sensing apparatus, for receiving the signal, processing the signal, and outputting an indication of the concentration of tritium; the sensing apparatus comprising four equal-dimensioned ion chambers, the four chambers being formed in a single block of metal, the four chambers comprising a first measurement chamber, a second measurement chamber, a first compensation chamber and a second compensation chamber.