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1. 发明授权

US4063087A Reducing noise in uranium exploration 失效
标题翻译：减少铀勘探中的噪音
公开(公告)号：US4063087A
公开(公告)日：1977-12-13
申请号：US715225
申请日：1976-08-18
申请人： Robert L. Fleischer
发明人： Robert L. Fleischer
IPC分类号： G01V5/00 , G01T1/178 , G01T5/10 , G01V5/02
CPC分类号： G01V5/02 , G01T1/178 , G01T5/10 , Y10S250/02
摘要： A method and apparatus are described for reducing or removing the background noise caused by thoron gas (.sup.220 Rn) in uranium exploration conducted by the detection of radon gas (.sup.222 Rn) emanating from the ground. This is accomplished by the use of a number of alpha particle detectors, each of which is disposed in a protective enclosure. A barrier which permits, but deliberately retards, the passage therethrough of gases is disposed in the path to be traversed before such gases can reach the alpha particle detector. The increase in the transit time made necessary by requiring soil gases to move through the barrier should be sufficiently long to allow the decay of most of the thoron, thereby eliminating its contribution to the total signal reflected at the detector.
摘要翻译：描述了一种用于减少或消除由从地面发出的氡气（222Rn）的检测进行的铀气探测引起的钍气（220Rn）引起的背景噪声的方法和装置。这通过使用多个α粒子检测器来实现，每个α粒子检测器设置在保护性外壳中。在这种气体可以到达α粒子检测器之前，允许但故意延迟通过气体的通道的屏障设置在要穿过的路径中。通过要求土壤气体移动穿过障碍物所需的通行时间的增加应该足够长以允许大部分钍气的衰减，从而消除其对检测器反射的总信号的贡献。

2. 发明授权

US4518860A Compact detector for radon and radon daughter products 失效
标题翻译：用于氡和氡子产品的紧凑型检测器
公开(公告)号：US4518860A
公开(公告)日：1985-05-21
申请号：US435197
申请日：1982-10-19
申请人： H. Ward Alter , Richard A. Oswald
发明人： H. Ward Alter , Richard A. Oswald
IPC分类号： G01T1/167 , G01T5/00 , G01T5/10 , G01V5/00
CPC分类号： G01T5/10 , Y10S250/02
摘要： A compact low cost track registration detector for radon gas and radon daughter products includes a housing with a removable closure cap for retaining a strip of track registration material having the property of forming damage tracks along paths traversed by alpha particles. The strip is retained within the housing by integrally formed upstanding ribs located closely adjacent diametrically opposite inner side wall portions of the housing, a first set of ribs forming a pedestal support and second set of longer ribs providing transverse support. A microporous filter impervious to particles and radon daughter products admits only radon gas to the interior of the housing. The apertured closure cap has a central solid portion providing a radiation shield for the upper surface of the strip to enable the lower exposure surface to be readily distinguished after the detector has been retrieved from an exposure site. The housing is fabricated from a pure polyethylene material free from any residual alpha particle radiation. A flexible strip wrapped about the exterior of the housing affords both a hanging strap and an information sheet for user entry of exposure information.
摘要翻译：用于氡气和氡子产品的紧凑型低成本轨迹配准检测器包括具有可拆卸闭合盖的壳体，用于保持具有沿着由α粒子穿过的路径形成损伤轨道的特性的轨道配准材料条。带材通过一体形成的直立的肋条被保持在壳体内，该直立肋条紧邻壳体的直径相对的内侧壁部分，形成基座支撑件的第一组肋条和提供横向支撑件的第二组较长的肋条。不渗透颗粒和氡子产品的微孔过滤器仅将氡气仅允许到壳体的内部。有孔闭合盖具有中心固体部分，为带的上表面提供辐射屏蔽，使得能够在检测器从曝光位置取回之后容易地区分下曝光表面。外壳由不含任何残留的α粒子辐射的纯聚乙烯材料制成。围绕外壳的外部缠绕的柔性条带提供悬挂带和用于输入曝光信息的信息表。

3. 发明授权

US4065972A Method and apparatus for underground deposit detection 失效
标题翻译：地下沉积物检测方法和装置
公开(公告)号：US4065972A
公开(公告)日：1978-01-03
申请号：US689710
申请日：1976-05-24
申请人： Fred F. Holub , H. Ward Alter
发明人： Fred F. Holub , H. Ward Alter
IPC分类号： G01V9/00 , G01N1/26
CPC分类号： G01V9/007
摘要： A method and apparatus for collecting gas samples associated with underground minerals. A plurality of small gas sample containers are planted in an inverted position in shallow holes in the surface of the earth in a predetermined pattern, and upwardly migrating gases associated with the underground minerals being sought are collected in the containers for a predetermined time period, to obtain a time-integrated representation of the amount of one or more gases of interest migrating to the surface over that time period. Two types of containers are alternately employed: A total gas sample container in which all upwardly migrating gases are admitted into a sealed compartment at a preselected flow rate; and a specific gas sampler container in which strips of detector material which are sensitive to predetermined specific gaseous substances are mounted within the inverted container and exposed to the upwardly migrating gases over the predetermined time interval. The containers are removed from the shallow holes after the lapse of the predetermined time interval, and the detector material alone, or the containers with the detector material still mounted, are subjected to qualitative and quantitative analysis. The gas collection period is maintained substantially constant for all containers.
摘要翻译：一种用于收集与地下矿物相关的气体样品的方法和装置。多个小气体样品容器以预定的模式在地球表面的浅孔中以倒置的位置种植，并且与所寻求的地下矿物相关联的向上迁移的气体被收集在容器中预定的时间段，以获得在该时间段内迁移到表面的一种或多种感兴趣的气体的量的时间整合表示。交替使用两种类型的容器：总气体样品容器，其中所有向上迁移的气体以预选流速进入密封室; 以及特定的气体取样器容器，其中对预定的特定气体物质敏感的检测器材料的条带安装在倒置的容器内并在预定的时间间隔内暴露于向上迁移的气体。在经过预定的时间间隔之后，将容器从浅孔中取出，并且对检测器材料或检测器材料仍然安装的容器进行定性和定量分析。所有容器的气体收集周期保持基本恒定。

4. 发明授权

US3987677A Method and apparatus for underground deposit detection in water covered areas 失效
标题翻译：水覆盖地区地下沉积物检测方法与装置
公开(公告)号：US3987677A
公开(公告)日：1976-10-26
申请号：US653991
申请日：1976-01-30
申请人： H. Ward Alter
发明人： H. Ward Alter
IPC分类号： G01N1/26 , G01V9/00
CPC分类号： G01V9/007 , G01N1/26
摘要： A plurality of gas sample collecting containers are distributed in a predetermined pattern from a vehicle. The containers are cup shaped but weighted so that the open end sinks first and engages the subaqueous earth laer. Gas migrating upwardly through the earth is caught by the inverted cup. The gas sample may be either collected in a separate container or exposed to a detector material located above the expected water level. The sample collecting containers may be retrieved by means of marker floats, magnetic grappling devices or self actuated flotation devices.

5. 发明授权

US4338523A Low cost disposable radiation detecting apparatus 失效
标题翻译：低成本一次性辐射检测仪
公开(公告)号：US4338523A
公开(公告)日：1982-07-06
申请号：US139382
申请日：1980-04-11
申请人： H. Ward Alter
发明人： H. Ward Alter
IPC分类号： B65D73/00 , G01T5/10 , G01T1/04
CPC分类号： B65D73/00 , G01T5/10 , Y10S250/02
摘要： A low cost disposable radiation detector of the track registration material type having a substrate layer with a strip of the track registration material removably attached thereto. The track registration material is removably attached to the substrate by a top layer having an aperture formed therein and at least one tab portion adjacent the aperture and bendable out of the top layer to overlap a portion of the strip of track registration material for retaining the strip in the aperture.
摘要翻译：具有轨道配准材料类型的低成本一次性辐射探测器，其具有带有可移除地附接到其上的轨道对准材料带的基底层。轨道配准材料通过其中形成有孔的顶层和至少一个与孔的邻近的弯曲部分可拆卸地附接到基底上，以便与轨道配准材料条的一部分重叠以保持条带在光圈中。

6. 发明授权

US4064436A Reducing noise in uranium exploration 失效
标题翻译：减少铀勘探中的噪音
公开(公告)号：US4064436A
公开(公告)日：1977-12-20
申请号：US715224
申请日：1976-08-18
申请人： William J. Ward, III
发明人： William J. Ward, III
IPC分类号： G01V5/00 , G01T1/178 , G01T5/10 , G01V5/02
CPC分类号： G01T1/178 , G01T5/10 , G01V5/02 , Y10S250/02
摘要： A method and apparatus are described for reducing or removing the background noise caused by thoron gas (.sup.220 Rn) in uranium exploration conducted by the detection of radon gas (.sup.222 Rn) emanating from the ground. This is accomplished by the use of a number of alpha particle detectors, each of which is disposed in a protective enclosure. A permselective membrane, which permits, but selectively retards, the passage therethrough of gases is disposed in the path to be traversed before such gases can reach the alpha particle detector. The retarding influence of the membrane should be sufficient to make the concentration of thoron inside the enclosure small relative to the concentration of thoron outside the enclosure. The influence of the membrane on radon should be negligible, i.e. the randon concentration inside and outside the enclosure should be substantially equal.
摘要翻译：描述了一种用于减少或消除由从地面发出的氡气（222Rn）的检测进行的铀气探测引起的钍气（220Rn）引起的背景噪声的方法和装置。这通过使用多个α粒子检测器来实现，每个α粒子检测器设置在保护性外壳中。在这种气体可以到达α粒子检测器之前，允许但是选择性地延迟通过气体的通道的选择性渗透膜设置在要穿过的路径中。膜的阻滞作用应足以使外壳内的钍气浓度相对于外壳外的钍气浓度小。膜对氡的影响应该是可忽略的，即外壳内部和外部的浓度应基本相等。

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