公开(公告)号：AU2003237345A1

公开(公告)日：2003-12-19

申请号：AU2003237345

申请日：2003-06-02

Applicant: OREGON STATE

Inventor： BAROFSKY DOUGLAS F ,  DEINZER MAX L

IPC: H01J49/02 ,  H01J49/26

公开(公告)号：CA2725544A1

公开(公告)日：2009-12-23

申请号：CA2725544

申请日：2009-05-29

Applicant: OREGON STATE

Inventor： BAROFSKY DOUGLAS F ,  BECKMAN JOSEPH S ,  DEINZER MAX L ,  VOINOV VALERY G

IPC: H01J49/28

Abstract: Mass spectrometry cells include one or more interleaved magnetostatic and electrostatic lenses. In some examples, the electrostatic lenses are based on electrical potentials applied to magnetostatic lens pole pieces. In other alternatives, the electrostatic lenses can include conductive apertures. Applied voltages can be selected to trap or transport charged particles, and photon sources, gas sources, ion sources, and electron sources can be provided for various dissociation processes.

公开(公告)号：WO2004021386A3

公开(公告)日：2005-04-28

申请号：PCT/US0327298

申请日：2003-08-29

Applicant: OREGON STATE ,  BAROFSKY DOUGLAS F ,  PIYADASA GAMINI ,  HAKANSSON PER

Inventor： BAROFSKY DOUGLAS F ,  PIYADASA GAMINI ,  HAKANSSON PER

IPC: H01J20060101 ,  H01J49/10 ,  H01J49/16 ,  H01J49/40

CPC classification number: H01J49/403 ,  H01J49/004 ,  H01J49/488

Abstract: A method is described for space-focusing ions accelerated to constant momentum that includes accelerating ions in an electric field having a negative gradient in the direction the ions are accelerated. A single stage ion accelerator (400, 410) that provides a decreasing electric field along the ion optical axis also is disclosed. Combined with a detector (414, 418) placed onto a space-focal plane where ions are focused after being accelerated, the accelerator provides a simple, sensitive time-of-flight mass spectrometer (416). In combination with an energy analyzer (410), the disclosed decreasing electric field ion accelerator provides a mass analyzer (416) that can measure constant momentum spectra, and that may be combined with existing mass spectrometers to enable a number of novel mass spectrometric methods.

Abstract translation: 描述了一种加速到恒定动量的空间聚焦离子的方法，其包括在离子被加速的方向上具有负梯度的电场中加速离子。 公开了沿着离子光轴提供减小的电场的单级离子加速器（400,410）。 结合放置在空间焦平面上的检测器（414,418），其中离子在加速之后被聚焦，加速器提供简单，灵敏的飞行时间质谱仪（416）。 结合能量分析仪（410），所公开的降低电场离子加速器提供了可以测量恒定动量谱的质量分析器（416），并且可以与现有的质谱仪组合以实现许多新颖的质谱方法。

公开(公告)号：CA2882118A1

公开(公告)日：2014-02-20

申请号：CA2882118

申请日：2013-08-15

Applicant: OREGON STATE

Inventor： BAROFSKY DOUGLAS F ,  VOINOV VALERY G

IPC: H01J49/08 ,  H01J49/26

Abstract: An electron source for electron-induced dissociation in an RF-free electromagnetostatic cell for use installation in a tandem mass spectrometer is provided. An electromagnetostatic electron-induced dissociation cell may include at least one magnet having an opening disposed therein and having a longitudinal axis extending through the opening, the magnet having magnetic flux lines associated therewith, and an electron emitter having an electron emissive surface comprising a sheet, the emitter disposed about the axis at a location relative to the magnet where the electron emissive surface is substantially perpendicular to the magnetic flux lines at the electron emissive surface.

公开(公告)号：AU2003268325A1

公开(公告)日：2004-03-19

申请号：AU2003268325

申请日：2003-08-29

Applicant: OREGON STATE

Inventor： PIYADASA GAMINI ,  HAKANSSON PER ,  BAROFSKY DOUGLAS F

IPC: H01J20060101 ,  H01J49/10 ,  H01J49/16 ,  H01J49/40

公开(公告)号：AU2003268325A8

公开(公告)日：2004-03-19

申请号：AU2003268325

申请日：2003-08-29

Applicant: OREGON STATE

Inventor： PIYADASA GAMINI ,  BAROFSKY DOUGLAS F ,  HAKANSSON PER

IPC: H01J20060101 ,  H01J49/10 ,  H01J49/16 ,  H01J49/40

公开(公告)号：EP2304767A4

公开(公告)日：2015-08-12

申请号：EP09767393

申请日：2009-05-29

Applicant: OREGON STATE

Inventor： BAROFSKY DOUGLAS F ,  BECKMAN JOSEPH S ,  DEINZER MAX L ,  VOINOV VALERY G

IPC: H01J49/06

CPC classification number: H01J49/0054 ,  H01J49/062

Abstract: Mass spectrometry cells include one or more interleaved magnetostatic and electrostatic lenses. In some examples, the electrostatic lenses are based on electrical potentials applied to magnetostatic lens pole pieces. In other alternatives, the electrostatic lenses can include conductive apertures. Applied voltages can be selected to trap or transport charged particles, and photon sources, gas sources, ion sources, and electron sources can be provided for various dissociation processes.

公开(公告)号：EP2883237A4

公开(公告)日：2016-07-13

申请号：EP13829969

申请日：2013-08-15

Applicant: OREGON STATE

Inventor： BAROFSKY DOUGLAS F ,  VOINOV VALERY G ,  BECKMAN JOSEPH

IPC: H01J49/08 ,  H01J49/00 ,  H01J49/06

CPC classification number: H01J49/147 ,  H01J49/0054 ,  H01J49/062 ,  H01J49/08 ,  H01J49/26

Abstract: An electron source for electron-induced dissociation in an RF-free electromagnetostatic cell for use installation in a tandem mass spectrometer is provided. An electromagnetostatic electron-induced dissociation cell may include at least one magnet having an opening disposed therein and having a longitudinal axis extending through the opening, the magnet having magnetic flux lines associated therewith, and an electron emitter having an electron emissive surface comprising a sheet, the emitter disposed about the axis at a location relative to the magnet where the electron emissive surface is substantially perpendicular to the magnetic flux lines at the electron emissive surface.