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公开(公告)号：US09659740B2
公开(公告)日：2017-05-23
申请号：US14574309
申请日：2014-12-17
Applicant: Schlumberger Technology Corporation
Inventor： Matthieu Simon , Kenneth E. Stephenson
Abstract: A radiation generator is provided that includes a target, a cathode to emit electrons in a downstream direction toward the target, a first conductive member downstream of the cathode, and a second conductive member downstream of the cathode. The first and second conductive members have a potential difference with the cathode such that a resultant electric field accelerates the electrons toward the target. A diagnostic current in the second conductive member and a target current in the target may be measured, and an electrical property of the first conductive member may be adjusted based upon the diagnostic current and the target current.
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公开(公告)号：US09599729B2
公开(公告)日：2017-03-21
申请号：US14553611
申请日：2014-11-25
Applicant: Schlumberger Technology Corporation
Inventor： Bradley Albert Roscoe , James A. Grau , Zilu Zhou , Kenneth E. Stephenson , Markus Berheide
CPC classification number: G01V5/125 , G01T1/20 , G01T1/208 , G01V5/08 , G01V5/101 , G01V5/102 , G01V5/105
Abstract: Methods and related systems are described for gamma-ray detection. A gamma-ray detector is made depending on its properties and how those properties are affected by the data analysis. Desirable properties for a downhole detector include; high temperature operation, reliable/robust packaging, good resolution, high countrate capability, high density, high Z, low radioactive background, low neutron cross-section, high light output, single decay time, efficiency, linearity, size availability, etc. Since no single detector has the optimum of all these properties, a downhole tool design preferably picks the best combination of these in existing detectors, which will optimize the performance of the measurement in the required environment and live with the remaining non-optimum properties. A preferable detector choice is one where the required measurement precision (logging speed) is obtained for all of the required inelastic elements and/or minimization of unwanted background signals that complicate the data analysis.
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3.发明授权Scintillation detector package having radioactive reflective material therein 有权闪烁检测器封装，其中具有放射性反射材料公开(公告)号：US09395464B2
公开(公告)日：2016-07-19
申请号：US13895159
申请日：2013-05-15
Applicant: Schlumberger Technology Corporation
Inventor： Kenneth E. Stephenson , Wolfgang Ziegler
CPC classification number: G01V5/12 , G01T1/2002 , G01T1/2006 , G01T1/40
Abstract: A scintillator detector package includes a housing, with a scintillator in the housing. There is a radioactive reflective material between at least a portion of the scintillator and the housing. The radioactive reflective material may be a naturally occurring material, such as Lu2O3, and may be in powdered form. A photodetector may be optically coupled to the scintillator package, and gain stabilization circuitry may perform gain stabilization based upon detecting scintillations of the scintillator caused by radiation emitted by the radioactive reflective material striking the scintillator.
Abstract translation: 闪烁体检测器封装包括壳体，壳体中具有闪烁体。 在闪烁体的至少一部分和壳体之间存在放射性反射材料。 放射性反射材料可以是天然存在的材料，例如Lu 2 O 3，并且可以是粉末形式。 光电检测器可以光耦合到闪烁体封装，并且增益稳定电路可以基于检测由放射性反射材料撞击闪烁体发射的辐射引起的闪烁体的闪烁来执行增益稳定。
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公开(公告)号：US08822912B2
公开(公告)日：2014-09-02
申请号：US13720677
申请日：2012-12-19
Applicant: Schlumberger Technology Corporation
Inventor： Jani Reijonen , Irina Molodetsky , Kenneth E. Stephenson
CPC classification number: H01J27/08
Abstract: An ion source includes a cathode to emit electrons, a cathode grid downstream of the cathode, a reflector electrode downstream of the cathode grid, reflector grid radially inward of the reflector electrode, and an extractor electrode downstream of the reflector electrode, the extractor electrode and cathode grid defining an ionization region therebetween. The cathode and the cathode grid have a first voltage difference such the electrons are accelerated through the cathode grid and into the ionization region on a trajectory toward the extractor electrode. The reflector grid and the extractor electrode have a second voltage difference less than the first voltage difference such that the electrons slow as they near the extractor electrode and are repelled on a trajectory toward the reflector electrode. The reflector electrode has a negative potential such that the electrons are repelled away from the reflector electrode and into the ionization region.
Abstract translation: 离子源包括发射电子的阴极，阴极下游的阴极栅极，阴极栅极下游的反射器电极，反射器电极的径向内侧的反射器栅极和反射器电极下游的提取器电极，提取器电极和 阴极栅极限定其间的电离区域。 阴极和阴极栅极具有第一电压差，使得电子通过阴极栅极加速并进入到提取器电极的轨迹上的电离区域。 反射器栅格和提取器电极具有小于第一电压差的第二电压差，使得电子随着它们靠近提取器电极而减慢并且在朝向反射器电极的轨迹上被排斥。 反射器电极具有负电位，使得电子被反射离开反射器电极并进入电离区域。
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5.发明申请公开(公告)号：US20140339409A1
公开(公告)日：2014-11-20
申请号：US13895159
申请日：2013-05-15
Applicant: Schlumberger Technology Corporation
Inventor： Kenneth E. Stephenson , Wolfgang Ziegler
CPC classification number: G01V5/12 , G01T1/2002 , G01T1/2006 , G01T1/40
Abstract: A scintillator detector package includes a housing, with a scintillator in the housing. There is a radioactive reflective material between at least a portion of the scintillator and the housing. The radioactive reflective material may be a naturally occurring material, such as Lu2O3, and may be in powdered form. A photodetector may be optically coupled to the scintillator package, and gain stabilization circuitry may perform gain stabilization based upon detecting scintillations of the scintillator caused by radiation emitted by the radioactive reflective material striking the scintillator.
Abstract translation: 闪烁体检测器封装包括壳体，壳体中具有闪烁体。 在闪烁体的至少一部分和壳体之间存在放射性反射材料。 放射性反射材料可以是天然存在的材料，例如Lu 2 O 3，并且可以是粉末形式。 光电检测器可以光耦合到闪烁体封装，并且增益稳定电路可以基于检测由放射性反射材料撞击闪烁体发射的辐射引起的闪烁体的闪烁来执行增益稳定。
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Patent Agency Ranking
公开(公告)号：US20140339408A1
公开(公告)日：2014-11-20
申请号：US13895130
申请日：2013-05-15
Applicant: Schlumberger Technology Corporation
Inventor： Wolfgang Ziegler , Christian Stoller , Kenneth E. Stephenson
CPC classification number: G01T1/40 , G01T1/20 , G01T1/2018
Abstract: A radiation detector package includes a support apparatus at least part of which is constructed from a naturally occurring radioactive material. A scintillator is associated with the support apparatus. The support may include a detector housing carrying a photodetector and the scintillator, and the detector housing may be constructed from the naturally occurring radioactive material.
Abstract translation: 辐射检测器包装包括至少一部分由天然存在的放射性材料构成的支撑装置。 闪烁体与支持装置相关联。 支撑件可以包括携带光电检测器和闪烁体的检测器壳体，并且检测器壳体可以由天然存在的放射性材料构成。
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公开(公告)号：US20140263995A1
公开(公告)日：2014-09-18
申请号：US13829554
申请日：2013-03-14
Applicant: Schlumberger Technology Corporation
Inventor： Kenneth E. Stephenson
CPC classification number: H01J43/10 , E21B47/102 , G01V11/002
Abstract: A photomultiplier includes a tube and plurality of dynodes within the tube and including at least one first dynode and at least one second dynode. A respective insulator is between adjacent pairs of dynodes. The at least one first dynode includes a conductive outer ring and a medial conductive member coupled to the conductive outer ring in spaced relation therefrom. The at least one second dynode includes a conductive outer ring and a conductive inner ring supported within the conductive outer ring.
Abstract translation: 光电倍增管包括管和管内的多个倍增电极，并且包括至少一个第一倍增电极和至少一个第二倍增电极。 相应的绝缘体在相邻的倍增电极对之间。 所述至少一个第一倍增电极包括导电外环和与所述导电外环以间隔开的关系连接的中间导电构件。 所述至少一个第二倍增电极包括导电外环和支撑在所述导电外环内的导电内环。
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公开(公告)号：US10145979B2
公开(公告)日：2018-12-04
申请号：US15454458
申请日：2017-03-09
Applicant: Schlumberger Technology Corporation
Inventor： Bradley Albert Roscoe , James A. Grau , Zilu Zhou , Kenneth E. Stephenson , Markus Berheide
Abstract: Methods and related systems are described for gamma-ray detection. A gamma-ray detector is made depending on its properties and how those properties are affected by the data analysis. Desirable properties for a downhole detector include; high temperature operation, reliable/robust packaging, good resolution, high countrate capability, high density, high Z, low radioactive background, low neutron cross-section, high light output, single decay time, efficiency, linearity, size availability, etc. Since no single detector has the optimum of all these properties, a downhole tool design preferably picks the best combination of these in existing detectors, which will optimize the performance of the measurement in the required environment and live with the remaining non-optimum properties. A preferable detector choice is one where the required measurement precision (logging speed) is obtained for all of the required inelastic elements and/or minimization of unwanted background signals that complicate the data analysis.
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公开(公告)号：US20170184759A1
公开(公告)日：2017-06-29
申请号：US15454458
申请日：2017-03-09
Applicant: Schlumberger Technology Corporation
Inventor： Bradley Albert Roscoe , James A. Grau , Zilu Zhou , Kenneth E. Stephenson , Markus Berheide
CPC classification number: G01V5/125 , G01T1/20 , G01T1/208 , G01V5/08 , G01V5/101 , G01V5/102 , G01V5/105
Abstract: Methods and related systems are described for gamma-ray detection. A gamma-ray detector is made depending on its properties and how those properties are affected by the data analysis. Desirable properties for a downhole detector include; high temperature operation, reliable/robust packaging, good resolution, high countrate capability, high density, high Z, low radioactive background, low neutron cross-section, high light output, single decay time, efficiency, linearity, size availability, etc. Since no single detector has the optimum of all these properties, a downhole tool design preferably picks the best combination of these in existing detectors, which will optimize the performance of the measurement in the required environment and live with the remaining non-optimum properties. A preferable detector choice is one where the required measurement precision (logging speed) is obtained for all of the required inelastic elements and/or minimization of unwanted background signals that complicate the data analysis.
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10.发明申请公开(公告)号：US20150179390A1
公开(公告)日：2015-06-25
申请号：US14574309
申请日：2014-12-17
Applicant: Schlumberger Technology Corporation
Inventor： Matthieu Simon , Kenneth E. Stephenson
Abstract: A radiation generator is provided that includes a target, a cathode to emit electrons in a downstream direction toward the target, a first conductive member downstream of the cathode, and a second conductive member downstream of the cathode. The first and second conductive members have a potential difference with the cathode such that a resultant electric field accelerates the electrons toward the target. A diagnostic current in the second conductive member and a target current in the target may be measured, and an electrical property of the first conductive member may be adjusted based upon the diagnostic current and the target current.
Abstract translation: 提供了一种辐射发生器，其包括靶，在朝向靶的下游方向发射电子的阴极，阴极下游的第一导电构件和阴极下游的第二导电构件。 第一和第二导电构件与阴极具有电位差，使得所得的电场将电子加速朝向目标。 可以测量第二导电构件中的诊断电流和靶中的目标电流，并且可以基于诊断电流和目标电流来调整第一导电构件的电特性。
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