公开(公告)号：WO2004021386A2

公开(公告)日：2004-03-11

申请号：PCT/US2003/027298

申请日：2003-08-29

Applicant: THE STATE OF OREGON ACTING BY AND THROUGH THE STATE BOARD OF HIGHER EDUCATION ON BEHALF OF OREGON STATE UNIVERSITY ,  BAROFSKY, Douglas, F. ,  PIYADASA, Gamini, ,  HAKANSSON, Per

Inventor： BAROFSKY, Douglas, F. ,  PIYADASA, Gamini, ,  HAKANSSON, Per

IPC: H01J

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 that provides a decreasing electric field along the ion optical axis also is disclosed. Combined with a detector placed onto a space-focal plane where ions are focused after being accelerated, the accelerator provides a simple, sensitive time-of-flight mass spectrometer. In combination with an energy analyzer, the disclosed decreasing electric field ion accelerator provides a mass analyzer 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。 结合放置在空间焦平面上的检测器，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。 与能量分析仪结合使用，所公开的减小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，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：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。