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公开(公告)号:US3614510A
公开(公告)日:1971-10-19
申请号:US3614510D
申请日:1969-06-02
CPC分类号: H01J37/061 , H01J37/077 , H01J37/08
摘要: A nonthermionic cathode glow discharge device comprising an enclosure and means to maintain gas in the enclosure at a predetermined pressure. An anode is mounted in the enclosure or forms a part of a wall of the enclosure. A cathode having a surface directed at a treatment zone is suspended in the enclosure and has an aperture therein in which is positioned a control electrode. The said surface of the cathode may extend longitudinally or may be shaped as a segment of a sphere. By varying the potential applied to the control electrode with respect to the cathode, the focal point of the electron or ion beam and the current of the output beam can be controlled. A third electrode may be provided to surround part of the cathode to act as a screen to minimize unwanted electron emission from the cathode.
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公开(公告)号:US09805903B2
公开(公告)日:2017-10-31
申请号:US14344568
申请日:2012-09-14
IPC分类号: H01J35/02 , H01J37/06 , E21B47/01 , E21B47/08 , G01N23/20 , G01V5/04 , G01V5/12 , G01V3/12 , G01V3/30 , G01V5/00 , E21B47/10 , H05G1/10 , H01J3/02 , H01J43/04 , G01N9/24 , G01N35/00 , E21B49/00 , H02M7/10 , H05H3/06 , H05H5/04
CPC分类号: H01J35/025 , E21B47/011 , E21B47/082 , E21B47/1015 , E21B49/00 , G01N9/24 , G01N23/20008 , G01N2035/00306 , G01N2201/0227 , G01N2223/05 , G01N2223/204 , G01N2223/30 , G01V3/12 , G01V3/30 , G01V5/0008 , G01V5/04 , G01V5/12 , H01J3/023 , H01J37/061 , H01J43/04 , H02M7/103 , H05G1/10 , H05H3/06 , H05H5/045 , Y10T29/41 , Y10T29/49117
摘要: A well-logging tool may include a sonde housing and a radiation generator carried by the sonde housing. The radiation generator may include a generator housing, a target carried by the generator housing, a charged particle source carried by the generator housing to direct charged particles at the target, and at least one voltage source coupled to the charged particle source. The at least one voltage source may include a voltage ladder comprising a plurality of voltage multiplication stages coupled in a uni-polar configuration, and at least one loading coil coupled at at least one intermediate position along the voltage ladder. The well-logging tool may further include at least one radiation detector carried by the sonde housing.
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公开(公告)号:US09805902B2
公开(公告)日:2017-10-31
申请号:US14344513
申请日:2012-09-14
IPC分类号: H01J35/02 , H01J37/06 , E21B47/01 , E21B47/08 , G01N23/20 , G01V5/04 , G01V5/12 , G01V3/12 , G01V3/30 , G01V5/00 , E21B47/10 , H05G1/10 , H01J3/02 , H01J43/04 , G01N9/24 , G01N35/00 , E21B49/00 , H02M7/10 , H05H3/06 , H05H5/04
CPC分类号: H01J35/025 , E21B47/011 , E21B47/082 , E21B47/1015 , E21B49/00 , G01N9/24 , G01N23/20008 , G01N2035/00306 , G01N2201/0227 , G01N2223/05 , G01N2223/204 , G01N2223/30 , G01V3/12 , G01V3/30 , G01V5/0008 , G01V5/04 , G01V5/12 , H01J3/023 , H01J37/061 , H01J43/04 , H02M7/103 , H05G1/10 , H05H3/06 , H05H5/045 , Y10T29/41 , Y10T29/49117
摘要: A well-logging tool may include a sonde housing, and a radiation generator carried by the sonde housing. The radiation generator may include a generator housing, a target carried by the generator housing, a charged particle source carried by the generator housing to direct charged particles at the target, and at least one voltage source coupled to the charged particle source. The at least one voltage source may include a voltage ladder comprising a plurality of voltage multiplication stages coupled in a bi-polar configuration, and at least one loading coil coupled at at least one intermediate position along the voltage ladder. The well-logging tool may further include at least one radiation detector carried by the sonde housing.
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公开(公告)号:US20070228922A1
公开(公告)日:2007-10-04
申请号:US11703406
申请日:2007-02-08
申请人: Mamora Nakasuji
发明人: Mamora Nakasuji
IPC分类号: H01J29/00
CPC分类号: H01J3/029 , H01J37/061 , H01J2237/061 , H01J2237/06375 , H01J2237/065 , H01J2237/2817
摘要: For three types of the electron gun the brightness larger than Langmuir limit or the very high Emittance is obtained through a simulation. The first electron gun consists of a concave cathode and a convex anode, and for the gun with the cathode radius of Rc (mm) the emission current Ie (A) which give the brightness larger than Langmuir limit is in the range as, 0.733Rc−0.5≦Ie≦0.159Rc3+0.35. Rc≦2.5 mm, or 0.733Rc−0.5≦Ie≦0.255Rc3−1.17. Rc>2.5 mm. The second electron gun consist of a flat cathode and a convex anode, and for the gun with a distance between the cathode and the anode of Dac (mm) the emission current Ie (mA) which give the brightness larger than Langmuir limit or the very high Emittance is in the range as, 0.388/Dac−0.046≦Ie≦92.8/Dac+9.28, Dac≧3 mm, or 0.388/Dac−0.046≦Ie≦22/Dac+32.7, Dac 120 μm).
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公开(公告)号:US20180061610A1
公开(公告)日:2018-03-01
申请号:US15791818
申请日:2017-10-24
CPC分类号: H01J35/025 , E21B47/011 , E21B47/082 , E21B47/1015 , E21B49/00 , G01N9/24 , G01N23/20008 , G01N2035/00306 , G01N2201/0227 , G01N2223/05 , G01N2223/204 , G01N2223/30 , G01V3/12 , G01V3/30 , G01V5/0008 , G01V5/04 , G01V5/12 , H01J3/023 , H01J37/061 , H01J43/04 , H02M7/103 , H05G1/10 , H05H3/06 , H05H5/045 , Y10T29/41 , Y10T29/49117
摘要: A well-logging tool may include a sonde housing, and a radiation generator carried by the sonde housing. The radiation generator may include a generator housing, a target carried by the generator housing, a charged particle source carried by the generator housing to direct charged particles at the target, and at least one voltage source coupled to the charged particle source. The at least one voltage source may include a voltage ladder comprising a plurality of voltage multiplication stages coupled in a bi-polar configuration, and at least one loading coil coupled at at least one intermediate position along the voltage ladder. The well-logging tool may further include at least one radiation detector carried by the sonde housing.
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公开(公告)号:US20150055748A1
公开(公告)日:2015-02-26
申请号:US14344568
申请日:2012-09-14
CPC分类号: H01J35/025 , E21B47/011 , E21B47/082 , E21B47/1015 , E21B49/00 , G01N9/24 , G01N23/20008 , G01N2035/00306 , G01N2201/0227 , G01N2223/05 , G01N2223/204 , G01N2223/30 , G01V3/12 , G01V3/30 , G01V5/0008 , G01V5/04 , G01V5/12 , H01J3/023 , H01J37/061 , H01J43/04 , H02M7/103 , H05G1/10 , H05H3/06 , H05H5/045 , Y10T29/41 , Y10T29/49117
摘要: A well-logging tool may include a sonde housing and a radiation generator carried by the sonde housing. The radiation generator may include a generator housing, a target carried by the generator housing, a charged particle source carried by the generator housing to direct charged particles at the target, and at least one voltage source coupled to the charged particle source. The at least one voltage source may include a voltage ladder comprising a plurality of voltage multiplication stages coupled in a uni-polar configuration, and at least one loading coil coupled at at least one intermediate position along the voltage ladder. The well-logging tool may further include at least one radiation detector carried by the sonde housing.
摘要翻译: 测井工具可以包括探空仪外壳和由探空仪外壳承载的辐射发生器。 辐射发生器可以包括发电机壳体,由发电机壳体承载的目标,由发电机壳体承载的带电粒子源以将目标物上的带电粒子引导,以及耦合到带电粒子源的至少一个电压源。 所述至少一个电压源可以包括电压梯,所述电压梯包括以单极配置耦合的多个电压倍增阶段,以及耦合在所述电压梯的至少一个中间位置处的至少一个负载线圈。 测井工具还可以包括由探空仪壳体承载的至少一个辐射探测器。
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公开(公告)号:US20150055747A1
公开(公告)日:2015-02-26
申请号:US14344513
申请日:2012-09-14
CPC分类号: H01J35/025 , E21B47/011 , E21B47/082 , E21B47/1015 , E21B49/00 , G01N9/24 , G01N23/20008 , G01N2035/00306 , G01N2201/0227 , G01N2223/05 , G01N2223/204 , G01N2223/30 , G01V3/12 , G01V3/30 , G01V5/0008 , G01V5/04 , G01V5/12 , H01J3/023 , H01J37/061 , H01J43/04 , H02M7/103 , H05G1/10 , H05H3/06 , H05H5/045 , Y10T29/41 , Y10T29/49117
摘要: A well-logging tool may include a sonde housing, and a radiation generator carried by the sonde housing. The radiation generator may include a generator housing, a target carried by the generator housing, a charged particle source carried by the generator housing to direct charged particles at the target, and at least one voltage source coupled to the charged particle source. The at least one voltage source may include a voltage ladder comprising a plurality of voltage multiplication stages coupled in a bi-polar configuration, and at least one loading coil coupled at at least one intermediate position along the voltage ladder. The well-logging tool may further include at least one radiation detector carried by the sonde housing.
摘要翻译: 测井工具可以包括探空仪外壳和由探空仪外壳承载的辐射发生器。 辐射发生器可以包括发电机壳体,由发电机壳体承载的目标,由发电机壳体承载的带电粒子源以在靶材处引导带电粒子,以及耦合到带电粒子源的至少一个电压源。 所述至少一个电压源可以包括电压梯,所述电压梯包括以双极配置耦合的多个电压倍增阶段,以及耦合在沿着电压梯的至少一个中间位置的至少一个负载线圈。 测井工具还可以包括由探空仪壳体承载的至少一个辐射探测器。
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