Radiation detector
    61.
    发明授权

    公开(公告)号:US09689995B2

    公开(公告)日:2017-06-27

    申请号:US14419808

    申请日:2013-08-05

    摘要: Alpha particle detecting devices are disclosed that have a chamber that can hold a fluid in a tensioned metastable state. The chamber is tuned with a suitable fluid and tension such that alpha emitting materials such as radon and one or more of its decay products can be detected. The devices can be portable and can be placed in areas, such as rooms in dwellings or laboratories and used to measure radon in these areas, in situ and in real time. The disclosed detectors can detect radon at and below 4 pCi/L in air; also, at and below 4,000 pCi/L or 300 pCi/L in water.

    METHOD AND SYSTEM FOR CALIBRATING GAMMA RADIATION FLUX LEVELS IN A SOLID STATE GAMMA RADIATION DETECTION SYSTEM
    63.
    发明申请
    METHOD AND SYSTEM FOR CALIBRATING GAMMA RADIATION FLUX LEVELS IN A SOLID STATE GAMMA RADIATION DETECTION SYSTEM 审中-公开
    用于在固体状态伽马射线检测系统中校准伽马辐射通量的方法和系统

    公开(公告)号:US20160320501A1

    公开(公告)日:2016-11-03

    申请号:US15143205

    申请日:2016-04-29

    CPC分类号: G01T7/005 G01T1/40

    摘要: One aspect of the present disclosure comprises a method for calibrating a drive level of a non-radioactive calibration source. Another aspect of the present disclosure comprises a method for using a non-radioactive calibration source to verify correct operation of a radiation detector. Another aspect of the present disclosure comprises a radiation detection system that comprises a radiation detector and a non-radioactive calibration source that is used to verify correct operation of the radiation detector.

    摘要翻译: 本公开的一个方面包括用于校准非放射性校准源的驱动电平的方法。 本公开的另一方面包括使用非放射性校准源来验证辐射检测器的正确操作的方法。 本公开的另一方面包括一种辐射检测系统,其包括用于验证辐射检测器的正确操作的辐射检测器和非放射性校准源。

    Gas sensor
    64.
    发明授权
    Gas sensor 有权
    气体传感器

    公开(公告)号:US09354214B2

    公开(公告)日:2016-05-31

    申请号:US14233683

    申请日:2012-07-19

    IPC分类号: G01T1/178 G01N33/00

    摘要: A gas sensor instrument comprises a housing formed of two parts (102, 10) and a diffusion chamber inside the housing. The diffusion chamber is formed from two parts (106, 108) and at least one of the diffusion chamber parts is formed integrally with one of the housing parts. This allows a reduction in size of the instrument without compromising the size of the diffusion chamber. Additionally, a tubular projection is formed integrally with one of the housing parts to form part of a Faraday cage for shielding an amplifier circuit of the instrument.

    摘要翻译: 气体传感器仪器包括由壳体内的两个部分(102,10)和扩散室形成的壳体。 扩散室由两部分(106,108)形成,并且扩散室部分中的至少一个与壳体部件中的一个一体地形成。 这允许在不损害扩散室的尺寸的情况下减小仪器的尺寸。 此外,管状突起与壳体部件中的一个一体地形成,以形成用于屏蔽仪器的放大器电路的法拉第笼的一部分。

    Method and device for measuring radon by electrostatic collection method without influence of environmental temperature and environmental humidity
    65.
    发明授权
    Method and device for measuring radon by electrostatic collection method without influence of environmental temperature and environmental humidity 有权
    通过静电收集方法测量氡气的方法和装置,不受环境温度和环境湿度的影响

    公开(公告)号:US09329279B2

    公开(公告)日:2016-05-03

    申请号:US14355447

    申请日:2013-05-13

    摘要: A method and device for measuring radon by the electrostatic collection method without the influence of the environmental temperature and humidity is by reducing the pressure that in a electrostatic collection and measuring chamber to below a certain threshold value, in the operating temperature range of 0-45 degrees, and the air relative humidity of the external environment changing in 0%-400%, the collection efficiency of the collection and measuring chamber of the static electricity that collects positively charged 218Po particle to the surface of a semiconductor detector is basically unchanged, so when the temperature and humidity of the external environment change, the detection efficiency does not change; the threshold value relates to the geometric factor and the distribution of the electric field intensity that in different measuring chamber. The device comprises a measuring chamber, a semiconductor detector, a high-voltage module, a sampling pump, a vacuum gauge, and a regulating valve.

    摘要翻译: 通过静电收集方法测量氡的方法和装置,不受环境温湿度的影响是将静电收集和测量室中的压力降至一定阈值以下,工作温度范围为0-45 度,外部环境的空气相对湿度在0%-400%之间变化,收集测量室的静电收集效率基本保持不变,因此静电收集到正电的218Po颗粒到半导体检测器的表面,所以 当外部环境的温湿度变化时,检测效率不变; 阈值与几何因子和不同测量室中电场强度的分布有关。 该装置包括测量室,半导体检测器,高压模块,取样泵,真空计和调节阀。

    METHOD AND DEVICE FOR DETERMINING THE RADIOLOGICAL ACTIVITY DEPOSITED IN A SEA BED
    67.
    发明申请
    METHOD AND DEVICE FOR DETERMINING THE RADIOLOGICAL ACTIVITY DEPOSITED IN A SEA BED 有权
    用于确定海底沉积的放射活性的方法和装置

    公开(公告)号:US20160018533A1

    公开(公告)日:2016-01-21

    申请号:US14770264

    申请日:2014-02-21

    申请人: AREVA NC

    发明人: Marc MESSALIER

    IPC分类号: G01T1/169 G01T7/00 G01T1/178

    CPC分类号: G01T1/169 G01T1/178 G01T7/00

    摘要: A device for measurement of the radiological activity in the bottom of an aqueous medium, comprising a sealed case for a radiological detector, means forming a truncated cone containing a material that allows radiation to be measured by said radiological detector to pass through it, comprising a short base and a long base, the long base forming an input face for the radiation to be measured, this cone being assembled to said case in a sealed manner, the short base being placed on the side of the detector input face, and the long base being designed to be placed facing the bottom of this aqueous medium.

    摘要翻译: 一种用于测量水性介质底部的放射活性的装置,包括用于放射性检测器的密封外壳,形成包含允许所述放射线检测器辐射通过的材料的截头锥体的装置,包括 短基座和长基座,长基座形成用于待测辐射的输入面,该锥体以密封方式组装到所述壳体上,短基座放置在检测器输入面的侧面,长的基座 基底被设计成面向该水性介质的底部放置。

    Dose rate measuring apparatus
    68.
    发明授权
    Dose rate measuring apparatus 有权
    剂量率测量仪

    公开(公告)号:US09029769B2

    公开(公告)日:2015-05-12

    申请号:US13604232

    申请日:2012-09-05

    IPC分类号: G01T1/00 G01T1/178 G01T3/08

    CPC分类号: G01T1/178 G01T1/17 G01T3/085

    摘要: A radiation detector outputs an analog pulse for incident radiation, and a signal processing portion is furnished with a wave height measuring function of converting the analog pulse inputted therein to a digital form and then measuring a peak wave height of the analog pulse and a wave height spectrum measuring function of measuring a wave height spectrum on the basis of measured wave height data, computes a dose rate and mean energy on the basis of measured wave height spectral data, and outputs computation results. The signal processing portion computes the dose rate and the mean energy on the basis of the wave height spectral data in a same wave height range on a same time axis. It thus becomes possible to provide accurate information based on which to determine whether a rise in dose rate is contributed by natural radon and thoron or contributed by a reactor facility.

    摘要翻译: 放射线检测器输出用于入射辐射的模拟脉冲,并且信号处理部分具有将输入的模拟脉冲转换成数字形式的波高测量功能,然后测量模拟脉冲的峰值波高和波高 基于测量的波高数据测量波高频谱的频谱测量功能,基于测量的波高频谱数据计算剂量率和平均能量,并输出计算结果。 信号处理部分基于同一时间轴上相同波高范围内的波高频谱数据计算剂量率和平均能量。 因此,可以提供准确的信息,基于哪些来确定剂量率的上升是由天然氡和钍气贡献还是由反应堆设施贡献。

    Detection method using an electrochemically-assisted alpha detector for nuclear measurement in a liquid medium
    69.
    发明授权
    Detection method using an electrochemically-assisted alpha detector for nuclear measurement in a liquid medium 有权
    在液体介质中使用电化学辅助α检测器进行核测量的检测方法

    公开(公告)号:US08888981B2

    公开(公告)日:2014-11-18

    申请号:US13877907

    申请日:2011-10-07

    摘要: An in situ method for detecting alpha particles contained in a liquid medium, which uses a system which includes a counter-electrode and an alpha particle detector including a substrate made of an intrinsic semiconductor material sandwiched between two electrical contacts, wherein the contact intended to be in contact with the liquid medium is made of boron-doped diamond. By forming a particular electrolyte 8 and by causing a current to flow between counter-electrode and the boron-doped diamond contact in contact with the liquid medium, actinides or polonium present in the liquid medium may be concentrated on the boron-doped diamond contact, and by this means the detection limit of the alpha emitters may be lowered.

    摘要翻译: 一种用于检测包含在液体介质中的α粒子的原位方法,其使用包括反电极和α粒子检测器的系统,所述系统包括由夹在两个电触头之间的本征半导体材料制成的衬底,其中所述接触旨在 与液体介质接触由硼掺杂的金刚石制成。 通过形成特定的电解液8并且通过使电流在与液体介质接触的相对电极和掺硼金刚石触点之间流动,液体介质中存在的锕系元素或may可以集中在硼掺杂的金刚石触点上, 并且通过这种方式,可以降低α发射器的检测限。

    Method and apparatus for detection of the remote origin fraction of radon present in a measuring site
    70.
    发明授权
    Method and apparatus for detection of the remote origin fraction of radon present in a measuring site 有权
    用于检测测量位置中存在的氡的远程原始部分的方法和装置

    公开(公告)号:US08712700B2

    公开(公告)日:2014-04-29

    申请号:US13003298

    申请日:2008-07-10

    IPC分类号: G01N31/00 G01T1/178

    CPC分类号: G01T1/178

    摘要: A method and an apparatus for detecting the remote origin fraction of 222Rn present in a measuring site (Z) for the monitoring of dynamic phenomena inside the land crust, comprising the following steps: a) analysis of the measuring site (Z) in order to state a typical ratio between 222Rn of local origin and 220Rn of local origin; b) measurement, at preset time intervals, of alpha spectroscopy in the measuring site (Z) by a measuring chamber (2); c) processing of said alpha spectroscopy in order to find the concentrations of 222Rn and 220Rn present in the measuring site (Z); d) determination of the concentration of 222Rn of local origin by multiplying the concentration of 220Rn with the typical ratio; subtraction of the concentration of 222Rn of local origin from the concentration of 222Rn to obtain the concentration of the remote origin fraction Of 222Rn.

    摘要翻译: 一种用于检测存在于用于监测地壳内的动态现象的测量位置(Z)中的222Rn的远端原始分数的方法和装置,包括以下步骤:a)分析测量位置(Z)以便 说明当地的222Rn与当地的220Rn之间的典型比例; b)以预定的时间间隔通过测量室(2)测量测量位置(Z)中的α光谱; c)处理所述α光谱以找到存在于测量位点(Z)中的222Rn和220Rn的浓度; d)通过将220Rn的浓度与典型比例相乘来确定局部来源的222Rn的浓度; 从222Rn的浓度减去局部来源的222Rn的浓度,以获得222Rn的远端起始分数的浓度。