Sampling and recording dose rate meter
    1.
    发明授权
    Sampling and recording dose rate meter 失效
    采样和记录剂量率计

    公开(公告)号:US4721857A

    公开(公告)日:1988-01-26

    申请号:US861463

    申请日:1986-05-01

    CPC分类号: G01T1/02 G01T1/142

    摘要: A wide range radiation dose rate meter for civil defense use, including a iger-Mueller tube used in a continuous counting mode and for measuring dose rates from the natural background to about 30. rads/hr., with an ion chamber arranged to measure higher dose rates up to 10,000 rads/hr. The instrument has a sample and record capability in which the selected radiation detector will have its output connected to a selected storage capacitor for a precise interval of time determined by a timing circuit and the storage capacitor will accumulate and hold a voltage proportional to the dose rate, which can be read by means of an electrometer at a later time. The instrument has a self contained hand cranked power supply and all components are selected for long shelf life.

    摘要翻译: 用于民防使用的广泛辐射剂量率计,包括用于连续计数模式的Geiger-Mueller管和用于测量从天然背景到约30.rad / hr的剂量率,其中离子室布置成测量更高 剂量率高达10,000弧度/小时。 仪器具有采样和记录功能,其中所选择的辐射检测器将其输出连接到选定的存储电容器,用于由定时电路确定的精确时间间隔,并且存储电容器将累积并保持与剂量率成比例的电压 ,其可以在稍后的时间通过静电计读取。 该仪器具有自备的手动起动电源,所有组件均选择长期保质期。

    Sampling and recording dose rate meter
    2.
    发明授权
    Sampling and recording dose rate meter 失效
    采样和记录剂量率计

    公开(公告)号:US4617464A

    公开(公告)日:1986-10-14

    申请号:US597305

    申请日:1984-04-06

    IPC分类号: G01T1/02 G01T1/142 H01J39/29

    CPC分类号: G01T1/142 G01T1/02

    摘要: A wide range radiation dose rate meter for civil defense use, including a iger-Mueller tube used in a continuous counting mode and for measuring dose rates from the natural background to about 30 rads/hr., with an ion chamber arranged to measure higher dose rates up to 10,000 rads/hr. The instrument has a sample and record capability in which the selected radiation detector will have its output connected to a selected storage capacitor for a precise interval of time determined by a timing circuit and the storage capacitor will accumulate and hold a voltage proportional to the dose rate, which can be read by means of an electrometer at a later time. The instrument has a self contained hand cranked power supply and all components are selected for long shelf life.

    摘要翻译: 用于民防的宽范围辐射剂量率计,包括用于连续计数模式的Geiger-Mueller管,并用于测量从天然背景到约30弧度/小时的剂量率,其中离子室布置成测量较高剂量 速率高达10,000弧度/小时。 仪器具有采样和记录功能,其中所选择的辐射检测器将其输出连接到选定的存储电容器,用于由定时电路确定的精确时间间隔,并且存储电容器将累积并保持与剂量率成比例的电压 ,其可以在稍后的时间通过静电计读取。 该仪器具有自备的手动起动电源,所有组件均选择长期保质期。

    Dosimeter charging apparatus
    3.
    发明授权
    Dosimeter charging apparatus 失效
    剂量计充电装置

    公开(公告)号:US4506159A

    公开(公告)日:1985-03-19

    申请号:US522038

    申请日:1983-08-10

    IPC分类号: G01T1/142 G01T1/18

    CPC分类号: G01T1/142

    摘要: An apparatus for charging a dosimeter which has a capacitor connected between first and second electrodes and a movable electrode in a chamber electrically connected to the first electrode. The movable electrode deflects varying amounts depending upon the charge present on said capacitor. The charger apparatus includes first and second charger electrodes couplable to the first and second dosimeter electrodes. To charge the dosimeter, it is urged downwardly into a charging socket on the charger apparatus. The second dosimeter electrode, which is the dosimeter housing, is electrically coupled to the second charger electrode through a conductive ring which is urged upwardly by a spring. As the dosimeter is urged into the socket, the ring moves downwardly, in contact with the second charger electrode. As the dosimeter is further urged downwardly, the first dosimeter electrode and first charger electrode contact one another, and an insulator post carrying the first and second charger electrodes is urged downwardly. Downward movement of the post effects the application of a charging potential between the first and second charger electrodes. After the charging potential has been applied, the dosimeter is moved further into the charging socket against the force of a relatively heavy biasing spring until the dosimeter reaches a mechanical stop in the charging socket.

    摘要翻译: 一种用于对具有连接在第一和第二电极之间的电容器和在电连接到第一电极的室中的可动电极进行充电的装置。 可移动电极根据所述电容器上存在的电荷而偏转变化量。 充电器装置包括可连接到第一和第二剂量计电极的第一和第二充电器电极。 为了对剂量计进行充电,将其向下推入充电器装置上的充电插座中。 作为剂量计壳体的第二剂量计电极通过由弹簧向上推动的导电环电耦合到第二充电器电极。 当剂量计被推入插座时,环向下移动,与第二充电器电极接触。 当剂量计被进一步向下推动时,第一剂量计电极和第一充电器电极彼此接触,并且承载第一和第二充电器电极的绝缘体柱被向下推动。 后端的向下运动影响在第一和第二充电器电极之间施加充电电位。 在施加充电电位之后,剂量计抵抗相对较重的偏压弹簧的力进一步移动到充电插座中,直到剂量计达到充电座中的机械止动。

    Gamma radiation field intensity meter
    5.
    发明授权
    Gamma radiation field intensity meter 失效
    伽马辐射场强度计

    公开(公告)号:US5459366A

    公开(公告)日:1995-10-17

    申请号:US258003

    申请日:1994-06-10

    申请人: Louis H. Thacker

    发明人: Louis H. Thacker

    CPC分类号: G01T1/142

    摘要: A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode.

    摘要翻译: 伽马辐射强度计测量辐射场的剂量率。 γ辐射强度计包括发射β射线的氚电池,其产生基本上恒定的电流。 剂量率与由氚电池充电的电镜元件的移动量相关。 电离辐射会降低元件的电压并引起移动。 放电电阻器耦合在电镜支撑元件或电极与电离室壁电极之间。

    Pocket radiation dosimeter--dosimeter charger assembly
    6.
    发明授权
    Pocket radiation dosimeter--dosimeter charger assembly 失效
    口袋辐射剂量计 - 剂量计充电器组件

    公开(公告)号:US4430569A

    公开(公告)日:1984-02-07

    申请号:US358960

    申请日:1982-03-17

    申请人: Frank W. Manning

    发明人: Frank W. Manning

    IPC分类号: G01T1/142 G01T1/18

    CPC分类号: G01T1/142

    摘要: This invention is a novel pocket-type radiation dosimeter comprising an electrometric radiation dosimeter and a charging circuit therefor. The instrument is especially designed to be amenable to mass production, to have a long shelf life, and to be compact, lightweight, and usable by the layman. The dosimeter proper may be of conventional design. The charging circuit includes a shake-type electrostatic generator, a voltage doubler for integrating generator output voltages of one polarity, and a switch operated by an external permanent magnet.

    摘要翻译: 本发明是一种新颖的口袋型辐射剂量计,其包括电动放射剂量计和其充电电路。 该仪器特别设计为适合批量生产,具有长的保质期,并且由外行人来实现紧凑,重量轻和可使用。 剂量计本身可以是常规设计。 充电电路包括振荡型静电发生器,用于积分一个极性的发电机输出电压的倍压器和由​​外部永磁体操作的开关。

    Apparatus for reading and recharging condenser ionization chambers
    7.
    发明授权
    Apparatus for reading and recharging condenser ionization chambers 失效
    冷凝器电离室的读取和再充电装置

    公开(公告)号:US4020349A

    公开(公告)日:1977-04-26

    申请号:US626188

    申请日:1975-10-28

    申请人: Richard C. McCall

    发明人: Richard C. McCall

    IPC分类号: G01T1/142 G01T1/18

    CPC分类号: G01T1/142

    摘要: A metering circuit for a condenser ionization chamber is disclosed for simultaneously recharging the ionization chamber and reading out the amount of charge required to recharge the chamber. During the recharging process, the amount of charge necessary to recharge the ionization chamber capacitor is placed on an integrating capacitor in the metering apparatus. The resultant voltage across the integrating capacitor is a measure of the radiation to which the ionization chamber was exposed.

    摘要翻译: 公开了一种用于冷凝器电离室的计量电路,用于同时对电离室充电并读出对腔室进行再充电所需的电荷量。 在充电过程中,将电离室电容器再充电所需的电荷量放置在计量装置中的积分电容器上。 积分电容器两端的合成电压是电离室露出的辐射的量度。

    Alpha, beta, and gamma monitor for measuring concentrations of ionizing radiation emitters in ambient air or other media
    10.
    发明授权
    Alpha, beta, and gamma monitor for measuring concentrations of ionizing radiation emitters in ambient air or other media 失效
    Alpha,beta和gamma监测器,用于测量环境空气或其他介质中电离辐射发射体的浓度

    公开(公告)号:US06346709B1

    公开(公告)日:2002-02-12

    申请号:US09516083

    申请日:2000-03-01

    IPC分类号: H01J4708

    CPC分类号: G01T1/142

    摘要: A low cost and simple technique for measurement of radioactive contaminants in the air, soil, or in buildings is provided. The alpha, beta gamma radiation monitor comprises a thin window and two more removable radiation windows on top of a pancake-shaped conductive plastic chamber, with a microscope and a carbon fiber electrometer within the chamber protruding through the chamber's side wall, and the microscope and electrometer opposing each other. Within the chamber the microscope is optically focused on the electrometer fiber. Three radiation windows are provided: one admits alpha particles, beta particles and gamma radiation to the chamber, another admits beta particles and gamma radiation, and a third one admits only gamma radiation. Thus one can measure or observe alpha, beta, and gamma radiation, beta and gamma radiation, or only gamma radiation. The present invention's configuration allows the concentration of each type of radiation to be independently determined. The radiation that penetrates one of the radiation windows generates an ionization charge within the chamber that causes a carbon fiber image to move along a scale within the microscope as a function of time to produce the desired reading. In the case of airborne alpha emitting contaminants either the concentration of alpha particles or the total alpha energy of the emission can be measured.

    摘要翻译: 提供了用于测量空气,土壤或建筑物中的放射性污染物的低成本和简单的技术。 α,β伽马辐射监测器包括薄的窗口和两个更可移除的辐射窗口,位于饼状导电塑料室的顶部,显微镜和腔室内的碳纤维静电计数器突出穿过室的侧壁,显微镜和 静电计彼此相对。 在室内,显微镜被光学聚焦在静电计量纤维上。 提供三个辐射窗口:一个允许α粒子,β粒子和γ辐射到腔室,另一个允许β粒子和γ射线,另外一个允许只有伽马射线。 因此,可以测量或观察α,β和γ辐射,β和γ辐射,或者仅测量γ辐射。 本发明的结构允许各种类型的辐射的浓度被独立地确定。 穿透辐射窗口之一的辐射在腔室内产生电离电荷,导致碳纤维图像作为时间的函数沿着显微镜内的刻度移动以产生期望的读数。 在机载α发射污染物的情况下,可以测量α粒子的浓度或发射的总α能量。