公开(公告)号：US07312439B1

公开(公告)日：2007-12-25

申请号：US10919526

申请日：2004-08-17

申请人： Payasada Kotrappa ,  Lorin R. Stieff ,  John C. Dempsey

发明人： Payasada Kotrappa ,  Lorin R. Stieff ,  John C. Dempsey

IPC分类号： G01V5/00

CPC分类号： G01T1/178 ,  G01T1/14 ,  Y10S250/02

摘要： A new type of radon progeny monitor called an electret radon progeny integrating sampling unit (E-RPISU) using an electret ion chamber to measure radon progeny concentration. A conventional 1 LPM particulate air sampling system is used to collect the radon progeny on a roughly 3.5 cm2 filter that is mounted on a side of an electret ion chamber such that the collected progeny are exposed to the inside of the chamber. Alpha radiation emitted by the progeny collected on the filter ionizes the air in the approximately 220 ml chamber. Ions of opposite polarity collect on the surface of the electret of suitable thickness and reduce its surface voltage. A specially built surface voltmeter is used to measure the electret voltage before and after sampling. The electret voltage drop that occurs during the sampling period is proportional to the time integrated progeny concentration. A similar unit with a screen in the place of filter is used to measure unattached progeny concentration. Another similar unit without filter is used to provide background response to compute net progeny concentration and also to compute radon concentration.

摘要翻译： 一种新型的氡子代监测器，称为驻极体氡子代后处理采集单元（E-RPISU），使用驻极体离子室测量氡后代浓度。 传统的1 LPM颗粒空气采样系统用于收集安装在驻极体离子室一侧的大约3.5cm 2的过滤器上的氡子代，使得所收集的后代暴露于内部 的房间。 收集在过滤器上的子代发射的α辐射使大约220ml的室中的空气离子化。 相反极性的离子聚集在适当厚度的驻极体的表面上并降低其表面电压。 采用特制的表面电压表测量取样前后的驻极体电压。 在采样期间发生的驻极体电压降与时间积分子代浓度成正比。 使用具有过滤器位置的屏幕的类似单元来测量未附着的子代浓度。 另一个没有过滤器的类似单位用于提供背景响应，以计算净后代浓度，并计算氡浓度。

公开(公告)号：US4445364A

公开(公告)日：1984-05-01

申请号：US340589

申请日：1982-01-19

申请人： Lorin R. Stieff ,  John C. Dempsey

发明人： Lorin R. Stieff ,  John C. Dempsey

IPC分类号： G01M3/20

CPC分类号： G01M3/20

摘要： Sources which emit tracer gas at a known constant rate are positioned throughout a building. Samples of air are collected in selected rooms with constant rate adsorbent samplers. Samplers are analyzed in a laboratory to determine the tracer gas concentration during the period sampled, which concentration is compared to the known volume of the building to determine air infiltration rates. The tracer gas emission rate is rendered independent of room temperature by allowing the gas to escape through specially designed orifices which automatically open and close in response to changes in temperature. In one design, an orifice is formed in a material which expands and contracts with variations in temperature surrounded by a second, less elastic material. In another design, the area of an orifice is changed by a needle valve imbedded in a material which expands and contracts with temperature variations to move the needle in and out of the orifice. In another design, a bimetallic coil is positioned in the bottom of a container for adjusting the length of tracer impregnated material projecting out of an opening in the container. In another design, a bimetallic coil slides a valve which opens and closes an orifice in response to temperature changes. In another design, the bimetallic coil in a circular thermometer is connected to a tracer impregnated wire extending through a rim of an enclosure to adjust the length of wire projecting out of the enclosure. An alternative temperature-independent device uses thermostatically controlled enclosures to maintain constant source temperature.

摘要翻译： 以已知的恒定速率发射示踪气体的源位于整个建筑物中。 空气样品采用恒速吸附剂采样器收集在选定的房间内。 在实验室中分析采样器以确定采样期间的示踪气体浓度，该浓度与建筑物的已知体积进行比较，以确定空气渗透率。 通过允许气体通过特殊设计的孔口而使得示踪气体排放速率与室温无关，该专门设计的孔口响应温度变化而自动打开和关闭。 在一种设计中，孔口形成为由第二弹性较差的材料包围的温度变化而膨胀和收缩的材料。 在另一种设计中，通过嵌入在材料中的针阀来改变孔口的区域，所述针阀膨胀并且随着温度变化而收缩，从而使针头进出孔。 在另一种设计中，双金属线圈位于容器的底部，用于调节从容器中的开口突出的示踪剂浸渍材料的长度。 在另一种设计中，双金属线圈滑动响应于温度变化而打开和关闭孔口的阀。 在另一种设计中，圆形温度计中的双金属线圈连接到延伸穿过外壳边缘的示踪剂浸渍线，以调整从外壳伸出的线的长度。 另一种与温度无关的设备使用恒温控制的外壳来保持源温度恒定。

公开(公告)号：US5126567A

公开(公告)日：1992-06-30

申请号：US670781

申请日：1991-03-19

申请人： John C. Dempsey ,  Lorin R. Stieff

发明人： John C. Dempsey ,  Lorin R. Stieff

IPC分类号： G01T1/185 ,  H01J47/02

CPC分类号： H01J47/026 ,  G01T1/185

摘要： A small enclosed ion chamber with an electrostatically charged electret attached to the inner chamber wall. Filtered holes in the chamber permits radon in the ambient air in the chamber to enter or exit by diffusion. Positive or negative ions (depending on the polarity of the electret charge) formed in the chamber air by the passing of gamma radiation or X-rays move to and collect on the electret surface by virtue of its electrostatic attraction to ions of opposite polarity. These ions neutralize the ions of opposite polarity on the electret and cause a measurable reduction in its surface voltage which reduction is proportional to the dose of gamma and/or X-ray incidence on the chamber. The reduction of the electret surface voltage is used to calculate the dose of gamma or X-ray radiation incident upon the chamber during a known exposure period. In one embodiment, a sealed radioactive-gas-tight flexible-wall container, such as a bag, surrounds the chamber to prevent any ambient radon from entering the ion chamber. In addition, an absorbent such as activated charcoal can be included in the bag to remove any radon captured within the sealed chamber. Removal of this radon removes its undesirable contribution to the gamma/X-ray dose signal and thereby enhances the accuracy of the monitor.

摘要翻译： 一个带有静电荷驻极体的小型封闭式离子室，附着在内腔壁上。 腔室中的过滤孔允许腔室中的环境空气中的氡气通过扩散进入或离开。 通过伽马辐射或X射线通过在腔室空气中形成的正离子（或取决于驻极体电荷的极性）通过静电对相反极性的离子的吸引而移动并收集在驻极体表面上。 这些离子中和驻极体上相反极性的离子，并导致其表面电压的可测量的降低，该减小与室上的γ和/或X射线入射剂量成比例。 驻极体表面电压的降低用于计算在已知曝光期间入射到腔室上的伽马或X射线辐射的剂量。 在一个实施例中，密封的放射性气密的柔性壁容器（例如袋）围绕室，以防止任何环境氡进入离子室。 此外，袋中可以包括吸收剂如活性炭以除去在密封室内捕获的任何氡。 去除这种氡消除了对伽马/ X射线剂量信号的不利影响，从而提高了监视器的精度。

公开(公告)号：US4926053A

公开(公告)日：1990-05-15

申请号：US289438

申请日：1988-12-23

申请人： John C. Dempsey ,  Lorin R. Stieff

发明人： John C. Dempsey ,  Lorin R. Stieff

IPC分类号： G01T1/14

CPC分类号： G01T1/14 ,  Y10S250/02

摘要： A sensitive radon monitor has a container with a flat bottom and an upwardly and outwardly extending truncated conical side wall terminating upwardly in a relatively large upper edge. A cover overlies the upper edge. The cover has a disk-shaped plate with holes in a circular arrangement. A filter is placed atop the disk and a retainer ring overlies a peripheral portion of the filter and the disk. A negatively charged electret is held against an underside of a central position on the disk, and a detector is held upward against the electret. A second positively charged electret lines the inside of the cup-shaped base. Ambient gases flow into and out of the container through the filter and through the holes in the cover disk. The filter removes liquid and solid particles flowing through the opening establish an equilibrium. Radon decays within the chamber and positively charged products of the decay are attracted and repelled toward the first electret and toward the detector. The positively charged particles are held on the detector while they decay. Later, the detector is removed and is studied for evidence of decay of charged particles repelled toward, attracted to and held on the detector by the electret combination. The container is portable and can be used as a badge for miners or as a radon detecting device in buildings.

摘要翻译： 灵敏的氡气监测器具有一个容器，它具有一个平坦的底部，一个向上和向外延伸的截锥形侧壁在一个相对较大的上边缘处向上终止。 盖子覆盖上边缘。 该盖具有圆形盘形板，该盘具有圆形排列的孔。 过滤器放置在盘的顶部，并且保持环覆盖在过滤器的周边部分和盘上。 负电荷的驻极体抵靠在盘上的中心位置的下侧，并且检测器向上保持抵靠驻极体。 第二个带正电荷的驻极体将杯形基底的内部排列。 环境气体通过过滤器和盖盘中的孔流入和流出容器。 过滤器去除流过开口的液体和固体颗粒建立平衡。 氡在室内衰变，并且衰变的带正电荷的产物被吸引并排斥到第一驻极体并朝向检测器。 带正电的颗粒在它们衰变时保持在检测器上。 之后，检测器被去除并被研究以证明随着驻极体组合而被排斥到被吸引和保持在检测器上的带电粒子的衰变。 容器是便携式的，并且可以用作矿工的徽章或作为建筑物中的氡检测装置。

公开(公告)号：US4074415A

公开(公告)日：1978-02-21

申请号：US768435

申请日：1977-02-14

申请人： Lorin R. Stieff

发明人： Lorin R. Stieff

IPC分类号： G02B6/245 ,  G02B6/25 ,  G09F3/03 ,  B25B27/02

CPC分类号： G02B6/245 ,  G02B6/25 ,  G09F3/0376 ,  Y10T29/49934 ,  Y10T29/5151

摘要： A fiber optic seal assembly tool has a stripper for stripping a predetermined length of tubing from an end of a fiber optic bundle. The stripped end is inserted in a seal block and the block is gripped in a hand tool. An actuating lever is squeezed, biasing bundle clamps closed, and sliding a grooved anvil toward the block to press a collet chuck which holds the fiber ends into the block. When the collet is pressed into the block, ends of the fibers are sheared by a knife which moves in the anvil opening.

摘要翻译： 光纤密封组件工具具有用于从光纤束的端部剥离预定长度的管道的剥离器。 将剥离的端部插入密封块中，并将该块夹在手工工具中。 致动杠杆被挤压，偏压捆扎夹闭合，并且将带槽的砧座朝向块滑动，以将保持纤维端部的夹头夹头压入块中。 当夹头压入块中时，纤维的端部用在砧座开口中移动的刀剪切。

公开(公告)号：US4262284A

公开(公告)日：1981-04-14

申请号：US918866

申请日：1978-06-26

申请人： Lorin R. Stieff ,  Charles B. Stieff

发明人： Lorin R. Stieff ,  Charles B. Stieff

IPC分类号： G09F3/03 ,  G08B13/06

CPC分类号： G09F3/0376

摘要： Self-monitoring seals have ends of fiber optic bundle loops mounted in stressed tamper resistant containers. A battery operates microelectronics to change a display in predetermined sequence. Tampering with the container or interrupting or changing the light transmission through the fiber optic bundle disrupts the predetermined display sequence.

摘要翻译： 自我监测密封件具有安装在应力防篡改容器中的光纤束环的端部。 电池操作微电子学以改变预定顺序的显示。 用容器篡改或中断或改变通过光纤束的光传输破坏了预定的显示顺序。

公开(公告)号：US4106849A

公开(公告)日：1978-08-15

申请号：US733177

申请日：1976-10-18

申请人： Lorin R. Stieff

发明人： Lorin R. Stieff

IPC分类号： G02B6/40 ,  G09F3/03 ,  G02B5/16

CPC分类号： G09F3/0376 ,  G02B6/40 ,  Y10T70/8243

摘要： A fiber optic bundle is placed through an object to be sealed. Ends of the fibers are spread and threaded through one another in a random dispersion, disorienting the fibers. Randomly reoriented ends are regathered and clamped. A moveable reticle at a light input termini of the fibers creates unique identifiable patterns at the output end of the fibers.

摘要翻译： 将光纤束放置通过要密封的物体。 纤维的端部以无规分散体彼此分散并且彼此螺纹连通，使纤维松动。 随机重新定向的端部被过滤并夹紧。 在纤维的光输入端可移动的掩模版在纤维的输出端处产生独特的可识别图案。

公开(公告)号：US4130341A

公开(公告)日：1978-12-19

申请号：US768434

申请日：1977-02-14

申请人： Lorin R. Stieff

发明人： Lorin R. Stieff

IPC分类号： G02B6/40 ,  G09F3/03 ,  G02B5/16

CPC分类号： G09F3/0376 ,  G02B6/40 ,  Y10T70/8243

摘要： A fiber optic seal having a block with similar fiber spreading inserts and similar fiber combining inserts which terminate in rectangular facial fiber openings. The block is placed on alignment lugs and a rectangular reticle is precisely moved by a micrometer in front of the light source to illuminate the one group of fiber ends. The second group of ends in the block is observed through an observing device mounted in an angle in the housing parallel to a handle which includes a power source.

摘要翻译： 一种光纤密封件，具有具有类似的纤维铺展插件的块体和类似的纤维组合插入物，其终止于矩形面纤维开口。 该块被放置在对准凸耳上，并且矩形掩模版由光源前面的千分尺精确地移动以照亮一组光纤端部。 通过观察装置观察块中的第二组端部，该观察装置平行于包括电源的手柄在壳体中以一定角度安装。

公开(公告)号：US08153959B1

公开(公告)日：2012-04-10

申请号：US12287523

申请日：2008-10-10

申请人： Lorin R. Stieff ,  Frederick Stieff

发明人： Lorin R. Stieff ,  Frederick Stieff

IPC分类号： G01V5/00

CPC分类号： G01T1/178

摘要： A passive radon surface flux monitor has a dome with an open base having a radial flange and a top opening where an electret can be threaded. Attached to and extending below the open base of the dome is a metal collar that supports the dome when placed on the ground. The collar holds a conductive screen against the radial flange. The conductive screen permits diffusion of gas including radon, thoron, and their daughter products into the dome. A thin paper diaphragm on the conductive screen prevents dust from entering the dome. Sealant seals the connection of the collar, screen, flange, and diaphragm to prevent lateral loss of radon. A collar is pressed partially into the ground at a suitable site and an electret is threaded into the top opening. After a time, the electret is removed and its change in voltage measured.

摘要翻译： 被动氡表面通量监测器具有一个具有开口底座的圆顶，其具有径向凸缘和顶部开口，驻极体可以被螺纹连接。 连接到并延伸到圆顶的开口底部的下方是放置在地面上时支撑圆顶的金属环。 轴环保持抵靠径向凸缘的导电屏蔽。 导电屏幕允许包括氡气，钍气及其子产品在内的气体扩散到圆顶中。 导电屏幕上的薄纸隔膜可防止灰尘进入圆顶。 密封胶密封环，屏幕，法兰和隔膜的连接，以防止氡的横向损失。 衣领在合适的位置被部分地压入地面，并且驻极体被拧入顶部开口中。 一段时间后，驻极体被去除，其电压变化被测量。

公开(公告)号：US4268748A

公开(公告)日：1981-05-19

申请号：US899937

申请日：1978-04-25

申请人： Lorin R. Stieff

发明人： Lorin R. Stieff

IPC分类号： G01V5/00 ,  G01T5/00

CPC分类号： G01V5/00 ,  Y10S250/02

摘要： Locations of buried deposits containing uranium are determined by detecting the presence of Pb214, Bi214, Po214, Pb210, Bi210 and Po210 in solutions obtained by chemically leaching these elements from rocks and soil. Alpha sensitive films are exposed to the alpha decay of Po214 and Po210. The films, when etched, will reveal the damage caused by the passage of the high energy alpha particles. Alpha damage as a function of sample size, volume of solution used, film area and exposure measures concentration of Po214 and Po210 in the sample. Anomalous concentrations suggest presence of buried deposits containing uranium. Similar anomalous concentrations of alpha damage from Bi212 and Po212 formed in films exposed to foils or planchets from leach solutions containing Pb212, Bi212 and Po212 suggest deposits containing thorium. Plotting normalized alpha damage (numbers of alpha damage per gram, per square mm., per hour) and sample locations suggest mineral deposit locations.

摘要翻译： 通过在岩石和土壤中化学浸出这些元素获得的溶液中检测到Pb214，Bi214，Po214，Pb210，Bi210和Po210的存在，来确定含铀矿藏的位置。 Alpha敏感膜暴露于Po214和Po210的α衰变。 当蚀刻时，这些薄膜将显示高能α粒子通过所造成的损伤。 作为样品尺寸，溶液体积，膜面积和曝光度的样品中的Po214和Po210浓度的α损伤。 异常浓度表明存在含有铀的埋藏矿床。 在含有Pb212，Bi212和Po212的浸出溶液中暴露于箔片或平纹片的薄膜中形成的Bi212和Po212的类似异常浓度的α损伤表明含有钍的沉积物。 绘制归一化的α损伤（每克，每平方毫米，每小时）的α损伤数量和样品位置表明矿床位置。