公开(公告)号：US2672560A

公开(公告)日：1954-03-16

申请号：US31710652

申请日：1952-10-27

Applicant: CONS ENG CORP

Inventor： BERRY CLIFFORD E

IPC: H01J27/04 ,  H01J41/20 ,  H01J49/10

CPC classification number: H01J49/102 ,  H01J27/04 ,  H01J41/20

公开(公告)号：US2507652A

公开(公告)日：1950-05-16

申请号：US35974240

申请日：1940-10-04

Applicant: CORNELL RES FOUNDATION INC

Inventor： SMITH LLOYD P

IPC: H01J49/10

CPC classification number: H01J49/102

公开(公告)号：US20240162024A1

公开(公告)日：2024-05-16

申请号：US18550945

申请日：2022-03-14

Applicant: QuadroCore Corp.

Inventor： Gholamreza Javahery ,  Victor Titov ,  Dmitry Valyaev ,  Fadi Jozif

IPC: H01J49/06 ,  H01J49/10 ,  H01J49/14

CPC classification number: H01J49/063 ,  H01J49/102 ,  H01J49/145

Abstract: A combined ion discharge tube and an ion guide system is disclosed. The ion discharge tube comprises of a cathode tube and an anode surface. The discharge tube acts as the cathode, whereas the anode can be any number of different configurations. In one embodiment the discharge tube is set inside a quadrupole ion guide, with the walls of the ion guide being the anode. In other embodiments, the discharge tube is placed inside the rods of the quadrupole and the inner walls of the rods or a separate plate acting as the anode. In all configurations, the ions are formed by the discharge tube and are introduced into the RF confinement of an ion guide to increase ion transfer efficiency.

公开(公告)号：US3835319A

公开(公告)日：1974-09-10

申请号：US14332771

申请日：1971-05-14

Applicant: NAT RES CORP

Inventor： ROEHRIG J ,  TORNEY F

IPC: H01J49/10 ,  H01J49/42 ,  H01J39/34

CPC classification number: H01J49/102

Abstract: Mass spectrometer combination and ion source subcombination therefor. The mass spectrometer has a magnetron ion source, a quadrupole ion analyzer and an ion collector with digital counting read-out and this is useful for residual gas analysis, partial pressure analysis and chemical composition determination and is particularly suited for ultra-high vacuum usage yielding high sensitivity and improved signal-to-noise ratio, consistent with low weight and bulk. The ion source is constructed so that photons are not produced at those loci which can be viewed through the ion exit aperture thereof. Thus, the spectrometer collector is free from impingement thereon of light energy and the signal-to-noise ratio of the instrument is improved thereby.

Abstract translation: 质谱仪组合和离子源子组合。 质谱仪具有磁控管离子源，四极离子分析仪和具有数字计数读数的离子收集器，可用于残留气体分析，分压分析和化学成分测定，特别适用于超高真空使用率 高灵敏度和提高的信噪比，与低重量和体积一致。 离子源被构造成使得光子不会在可以通过其离子出射孔观察的那些轨迹处产生。 因此，光谱仪收集器没有光能的照射，并且因此提高了仪器的信噪比。

公开(公告)号：US3075076A

公开(公告)日：1963-01-22

申请号：US85903059

申请日：1959-12-11

Applicant: SIEMENS AG

Inventor： GEORG GUNTHER KARL

IPC: H01J49/42

CPC classification number: H01J49/4215 ,  H01J49/102

公开(公告)号：US20170278688A1

公开(公告)日：2017-09-28

申请号：US15508800

申请日：2015-09-04

Applicant: LECO CORPORATION

Inventor： Anatoly N. VERENCHIKOV ,  Alexander KOLOSOV

IPC: H01J49/00 ,  H01J49/04 ,  H01J49/10

CPC classification number: H01J49/0031 ,  G01N2030/8482 ,  H01J49/0036 ,  H01J49/0418 ,  H01J49/102 ,  H01J49/145

Abstract: One aspect of the disclosure provides a method of mass spectrometric analysis that includes producing either glow discharge within a noble gas between 3-100 mBar pressure, sampling and conditioning glow discharge products within a gas flow through a conductive channel, removing charged particles while transferring excited Ridberg atoms, and mixing conditioned discharge products with analyte flow within an enclosed chamber at elevated temperatures above 150° Celsius for producing a Penning reaction between analyte molecules and Ridberg atoms. The method further includes sampling, by a gas flow, said analyte ions for mass spectrometric analysis, and at least one of the following steps: (i) removing charge within said conditioning channel; (ii) coaxially mixing of analyte flow with the flow of conditioned plasma; and (iii) cooling of the mixed flow within a sonic or supersonic jet for reducing the region of Penning ionization to cold jet.

公开(公告)号：US09721773B2

公开(公告)日：2017-08-01

申请号：US14898158

申请日：2014-05-30

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Akio Yamamoto ,  Toshimitsu Watanabe ,  Shigeo Ootsuki ,  Kazuki Kajima ,  Toshiaki Yanokura

IPC: H01J49/00 ,  H01J49/10 ,  H01J49/04

CPC classification number: H01J49/0031 ,  H01J49/0409 ,  H01J49/0495 ,  H01J49/102

Abstract: This mass spectrometric device is provided with a sample container (8) for placing a measurement sample (12) therein, a detector (9) analyzing the mass of a sample and detecting a drug, or the like, in the sample, a dielectric container (3) linked to the sample container for running a discharge current into air to provoke ionization, a valve (2) for sending air intermittently to the sample container, the dielectric container and the detector, a barrier discharge high-voltage power source (6) to be discharged by the dielectric container, a current detection unit (5) connected to the barrier discharge high-voltage power source for detecting a discharge current (28), a discharge-start timing detection unit (7) connected to the current detection unit for detecting the discharge-start timing based on the current detection result from the current detection unit to send a discharge-start timing signal (17), and a control unit (11) for controlling each constituent.

公开(公告)号：US20160254133A1

公开(公告)日：2016-09-01

申请号：US14634745

申请日：2015-02-28

Applicant: Agilent Technologies, Inc.

Inventor： Viorica Lopez-Avila ,  Mark Denning ,  Mehrnoosh Vahidpour

IPC: H01J49/10 ,  H01J49/04 ,  H01J49/00 ,  H01J49/16 ,  H05H1/46

CPC classification number: H01J49/102 ,  G01N21/714 ,  G01N30/95 ,  H01J27/16 ,  H01J49/0031 ,  H01J49/0409 ,  H01J49/049 ,  H01J49/105 ,  H01J49/161 ,  H05H1/46

Abstract: An ion source includes a plasma generator for supplying plasma at an ionization region proximate to a sample surface. The plasma generator applies energy that may be utilized for desorbing analytes from the sample surface as well as for generating plasma by which analytes are excited or ionized. Desorption and ionization/excitation may be controlled as individual modes. The ion source may be interfaced with an ion-based or optical-based spectrometer. A sample support may be provided, which may be capable of performing analytical separation.

Abstract translation: 离子源包括用于在靠近样品表面的电离区域提供等离子体的等离子体发生器。 等离子体发生器施加可用于从样品表面解吸分析物的能量，以及产生分析物被激发或电离的等离子体。 解吸和电离/激发可以作为各种模式来控制。 离子源可以与基于离子或光学的光谱仪接口。 可以提供样品载体，其可以进行分析分离。

公开(公告)号：US2697788A

公开(公告)日：1954-12-21

申请号：US36129753

申请日：1953-06-12

Applicant: WILSON ROBERT R

Inventor： WILSON ROBERT R

IPC: H01J49/10

CPC classification number: H01J49/102

公开(公告)号：US20190051506A1

公开(公告)日：2019-02-14

申请号：US16069506

申请日：2017-01-10

Applicant: DH Technologies Development Pte. Ltd.

Inventor： Takashi Baba

IPC: H01J49/38 ,  H01J49/42 ,  H01J49/10

CPC classification number: H01J49/38 ,  H01J49/102 ,  H01J49/422 ,  H01J49/4235 ,  H01J49/426

Abstract: Improvements to a side-on Penning trap include methods to stabilize ions in the trap. The ions are stabilized by injecting ions in the focusing region of the non-uniform DC fields produced by the pad electrodes of the trap. Ions are injected along an injection axis shifted from the central axis of a gap between a positively biased electrode pad and negatively biased electrode pad of the trap. Improvements also include methods to compensate for the Lorentz force that is produced when ions are injected into a side-on Penning trap. Electrodes of an ion injection device are DC biased so that the electrodes produce an electric field along the axis of the device that compensates for the Lorentz force. Finally, methods are provided to increase the m/z range of ions injected into a side-on Penning trap by pre-trapping ions just before injection of the ions into the trap.