公开(公告)号：EP2681759A1

公开(公告)日：2014-01-08

申请号：EP11764713.1

申请日：2011-09-28

申请人： Shimadzu Corporation

发明人： DING, Li ,  SUDAKOV, Mikhail ,  KUMASHIRO, Sumio

IPC分类号： H01J49/42 ,  H01J49/02

CPC分类号： H01J49/027 ,  H01J49/0031 ,  H01J49/061 ,  H01J49/406 ,  H01J49/408 ,  H01J49/4245

摘要： An electrostatic ion trap for mass analysis includes a first array of electrodes and a second array of electrodes, spaced from the first array of electrode. The first and second arrays of electrodes may be planar arrays formed by parallel strip electrodes or by concentric, circular or part-circular electrically conductive rings. The electrodes of the arrays are supplied with substantially the same pattern of voltage whereby the distribution of electrical potential in the space between the arrays is such as to reflect ions isochronously in a flight direction causing them to undergo periodic, oscillatory motion in the space, focused substantially mid-way between the arrays. Amplifier circuitry is used to detect image current having frequency components related to the mass-to-charge ratio of ions undergoing the periodic, oscillatory motion.

摘要翻译： 用于质量分析的静电离子阱包括第一电极阵列和与第一电极阵列间隔开的第二电极阵列。 第一和第二电极阵列可以是由平行条形电极或同心圆形或部分圆形导电环形成的平面阵列。 阵列的电极被提供有基本相同的电压图案，由此阵列之间的空间中的电位分布使得在飞行方向上等离子地反射离子，使得它们在空间中经历周期性的振荡运动 基本上位于阵列之间。 放大器电路用于检测具有与经历周期性振荡运动的离子的质荷比相关的频率分量的图像电流。

公开(公告)号：EP2681759B1

公开(公告)日：2018-11-21

申请号：EP11764713.1

申请日：2011-09-28

申请人： Shimadzu Corporation

发明人： DING, Li ,  SUDAKOV, Mikhail ,  KUMASHIRO, Sumio

IPC分类号： H01J49/42 ,  H01J49/02 ,  H01J49/40

CPC分类号： H01J49/027 ,  H01J49/0031 ,  H01J49/061 ,  H01J49/406 ,  H01J49/408 ,  H01J49/4245

摘要： An electrostatic ion trap for mass analysis includes a first array of electrodes and a second array of electrodes, spaced from the first array of electrode. The first and second arrays of electrodes may be planar arrays formed by parallel strip electrodes or by concentric, circular or part-circular electrically conductive rings. The electrodes of the arrays are supplied with substantially the same pattern of voltage whereby the distribution of electrical potential in the space between the arrays is such as to reflect ions isochronously in a flight direction causing them to undergo periodic, oscillatory motion in the space, focused substantially mid-way between the arrays. Amplifier circuitry is used to detect image current having frequency components related to the mass-to-charge ratio of ions undergoing the periodic, oscillatory motion.

公开(公告)号：EP2171742A2

公开(公告)日：2010-04-07

申请号：EP08777642.3

申请日：2008-06-20

申请人： Shimadzu Corporation

发明人： GOLIKOV, Uriy ,  SOLOVYEV, Konstantin ,  SUDAKOV, Mikhail ,  KUMASHIRO, Sumio

IPC分类号： H01J49/42 ,  H01J49/40

CPC分类号： H01J49/4245 ,  H01J49/406

摘要： A multi-reflecting ion optical device includes electrostatic field generating means configured to generate electrostatic field defined by a superposition of first and second distributions of electrostatic potential ΦEF, ΦLS. The first distribution ΦEF subjects ions to energy focusing in a flight direction and the second distribution ΦLS subjects ions to stability in one lateral direction, to stability in another lateral direction for the duration of at least a finite number of oscillations in the one lateral direction and to subject ions to energy focusing in the one lateral direction for a predetermined energy range.