Distributed Radiation Monitoring Systems and Methods

    公开(公告)号:US20220291398A1

    公开(公告)日:2022-09-15

    申请号:US17201644

    申请日:2021-03-15

    申请人: AL Ventures, LLC

    发明人: Alex Edward Athey

    IPC分类号: G01T1/167 G01T1/169 G01T1/20

    摘要: A radiation sensor device may include at least one radiation sensor configured to capture radiation measurement data, a location circuit to determine physical location data, a clock to provide timestamp data, and one or more communication interfaces configured to communicate with a radiation mapping system through one or more of a communication network or a communications link. The device may include a processor configured to selectively control a frequency of operation of the one or more sensors to capture the radiation measurement data based on changes to the physical location data. The device may be configured to correlate the radiation measurement data to the physical location data and the timestamp and to determine an anomalous radiation measurement based on the radiation measurement data relative to background radiation data. The device may send an alert to the radiation mapping system in response to determining the anomalous radiation measurement.

    Radon monitor
    2.
    发明授权

    公开(公告)号:US10921465B2

    公开(公告)日:2021-02-16

    申请号:US15325410

    申请日:2015-07-10

    申请人: Airthings AS

    IPC分类号: G01N31/00 G01T1/169 G01T1/17

    摘要: A method of measuring a radon concentration or a radon exposure level comprising: placing a plurality of individual radon measurement instruments at locations, each instrument being capable of data output; receiving radon measurement data from each of said plurality of instruments; combining said data from said plurality of instruments into a single data set; and calculating a radon concentration or radon exposure value from said single data set. Using a plurality of individual detectors and combining their data provides a much better overall analysis of radon concentration or radon exposure level. The calculated value may include producing an average of the radon concentrations across the multiple instruments. The average may be weighted with weights determined according to different locations such as proximity to ventilation devices or based on the time that an average user spends in each location.

    Directional Array with Alternating Short and Long Detectors

    公开(公告)号:US20200225372A1

    公开(公告)日:2020-07-16

    申请号:US16778169

    申请日:2020-01-31

    IPC分类号: G01T1/29 G01T1/20 G01T1/169

    摘要: A large-area directional radiation detection system may include a large number of slab-shaped detectors stacked side-by-side comprising alternate long and short detectors, where the long detectors are longitudinally longer than the short detectors. The long detectors may collimate or restrict the lateral field of view of the short detectors, so that a particular short detector that is aligned with the source has an unobstructed view of the source. By comparing detection distributions in the long and short detectors, a processor can determine the angular position and distance of a source. The high detection efficiency and large solid angle of the detector array may enable rapid detection of even well-shielded threat sources at substantial distances, while simultaneously determining the positions of any sources detected.

    RADIATION IMAGING APPARATUS
    7.
    发明申请

    公开(公告)号:US20190129045A1

    公开(公告)日:2019-05-02

    申请号:US16226098

    申请日:2018-12-19

    IPC分类号: G01T1/167 G01T1/169 G01T7/00

    摘要: A radiation imaging apparatus comprising: an optical imaging device configured to image real world structures; a position and orientation detector configured to determine an instantaneous position and orientation of the radiation imaging apparatus in six degrees of freedom relative to the real world structures as a fixed frame of reference; a radiation detector configured to detect ionising radiation; a radiation source determination section configured to determine a distribution of radiation sources based on data of the ionising radiation detected by the radiation detector combined with data of the position and orientation of the radiation imaging apparatus relative to the real world structures; and an image generator configured to generate data for a combined image comprising an optical image of the real world structures imaged by the optical imaging device and an overlay image representing the distribution of radiation sources based on data from the radiation source determination section.

    VEHICLE GATE MONITOR
    8.
    发明申请

    公开(公告)号:US20180364368A1

    公开(公告)日:2018-12-20

    申请号:US15562998

    申请日:2016-03-22

    IPC分类号: G01T1/169 G07C5/00 G06K7/10

    摘要: Provided is a vehicle gate monitor including a gate on which a detector group is mounted, the detector group including: a first detector, which is arranged in a manner that allows vertical and horizontal movement, and is configured to measure radiation levels of both side surfaces of the vehicle; a second detector, which is arranged in a manner that allows vertical, rotational, and horizontal movement, and is configured to measure radiation levels of a front surface, a rear surface, an upper surface, and a cargo bed surface of the vehicle; and a third detector, which is arranged in a manner that allows vertical and horizontal movement, and is configured to measure a radiation level of an inner-side side surface of the cargo bed, the gate including a control unit configured to identify, while moving the gate with respect to a stationary vehicle, presence/absence of a contaminated place.

    Multi-radiation identification and dosimetry system and method

    公开(公告)号:US10139496B2

    公开(公告)日:2018-11-27

    申请号:US14963504

    申请日:2015-12-09

    摘要: A multi-radiation identification and dosimetry system and method that allows for monitoring of alpha, beta, and gamma radiation is disclosed. The system/method incorporates a segmented silicon drift detector (SSDD) that allows measurement of directly absorbed radiation in the semiconductor (betas, conversion electrons, Lx lines, and alphas) on one SSDD segment and radiation from a radiation scintillation detector (RSD) on multiple segments of the SSDD. With the anode side of the SSDD directed toward the radiation inspection surface (RIS), the SSDD+RSD stacked radiation detector collects radiation which is processed by a charge sensitive amplifier (CSA) and then processed by a time stamping differentiator (TSD). A computing control device (CCD) may be configured to collect the time stamp differentiation data from the various SSDD segments to permit the simultaneous discrimination of several types of radiation by and presentation of these radiation types and counts on a display monitor.

    Method for managing lubricant oil, and method for predicting life of lubricant oil

    公开(公告)号:US10132744B2

    公开(公告)日:2018-11-20

    申请号:US15542755

    申请日:2016-01-13

    发明人: Jitsuo Shinoda

    摘要: A management method of a lubricating oil of the invention is a method of managing a lubricating oil by determining a degradation degree of the lubricating oil containing an antioxidant, specifically, according to determination methods a and b below. The determination method a includes: measuring an infrared ray absorption spectrum of the lubricating oil using a Fourier transform infrared spectrometer; and calculating a total content of the antioxidant and an altered substance having an antioxidant function to determine a deterioration degree of the lubricating oil from the obtained content. The determination method b includes: filtrating the lubricating oil with a filter; subsequently measuring a color difference of substances captured by the filter using a colorimeter, or measuring a color difference of the lubricating oil using the colorimeter; and determining a degradation degree of the lubricating oil and a mixture degree of foreign substances based on the obtained color difference.