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公开(公告)号：US20240248062A1
公开(公告)日：2024-07-25
申请号：US18606947
申请日：2024-03-15
IPC分类号： G01N27/622 , H01J49/06 , H01J49/16
CPC分类号： G01N27/622 , H01J49/061 , H01J49/16
摘要： Methods and apparatus for ion accumulation are disclosed. An apparatus for ion accumulation includes multiple regions. A first region receives and transfers ions to a second region using a first drive potential. The second region is switchable between a first state where it generates a first electric field preventing ions from further movement and entering a third region, and a second state where it generates a second electric field that guides the ions toward the third region. When in the first state, the ions are prevented from further movement by the first electric field, which causes the ions to accumulate in the second region. When in the second state, the ions are moved from the second region to the third region by the second electric field. A method of accumulating ions involves switching an electric field applied to a region between a trap state and a release state.
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公开(公告)号：US20230268169A1
公开(公告)日：2023-08-24
申请号：US18139143
申请日：2023-04-25
CPC分类号： H01J49/063 , H01J49/30 , H01J49/022 , H01J49/065
摘要： A device includes a first surface, a second surface and a controller. The second surface is adjacent to the first surface. The first and the second surfaces define a first ion channel therebetween. The first ion channel extends along a first direction. The second surface includes a first plurality of electrodes including a first electrode and a second electrode spaced apart from the first electrode along a second direction lateral to the first direction. The first plurality of electrodes extends along the first direction. The first electrode is configured to receive a first voltage signal and generate at least a portion of a pseudopotential that inhibits ions in the first ion channel from approaching the second surface. The second plurality of electrodes is located between the first electrode and the second electrode and arranged along the first direction. The second plurality of electrodes are configured to receive a second voltage signal to generate a first traveling drive potential that travels along the first direction. The first traveling drive potential is configured to guide ions along the first ion channel. The device further includes a controller electrically coupled to the first and the second surface. The controller is configured to generate the first voltage signal and the second voltage signal.
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公开(公告)号：US20200373140A1
公开(公告)日：2020-11-26
申请号：US16987827
申请日：2020-08-07
摘要： Disclosed is an ion carousel having a first surface and a second surface adjacent to the first surface. The second surface includes a first inner array of electrodes arranged along a first loop path and configured to receive a first ion packet and a second ion packet temporally separated from the first ion packet by a separation time. The first inner array of electrodes generates a traveling waveform which includes a plurality of potential wells that travel along the first loop path and receive ions from the first and second ion packets. The plurality of potential wells include at least a first potential well and a second potential well. An output switch is configured to selectively eject ions from the first potential well out of the carousel at time T1 and eject ions from the second potential well out of the carousel at time T2.
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公开(公告)号：US11322340B2
公开(公告)日：2022-05-03
申请号：US16987827
申请日：2020-08-07
IPC分类号： H01J49/06 , G01N27/622 , H01J49/10
摘要： Disclosed is an ion carousel having a first surface and a second surface adjacent to the first surface. The second surface includes a first inner array of electrodes arranged along a first loop path and configured to receive a first ion packet and a second ion packet temporally separated from the first ion packet by a separation time. The first inner array of electrodes generates a traveling waveform which includes a plurality of potential wells that travel along the first loop path and receive ions from the first and second ion packets. The plurality of potential wells include at least a first potential well and a second potential well. An output switch is configured to selectively eject ions from the first potential well out of the carousel at time T1 and eject ions from the second potential well out of the carousel at time T2.
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公开(公告)号：US10741375B2
公开(公告)日：2020-08-11
申请号：US16412271
申请日：2019-05-14
发明人： Ahmed Hamid , Gordon A. Anderson , Daniel DeBord
摘要： An ion carousel includes a first surface and a second surface adjacent to the first surface. The first and the second surfaces define an ion confinement volume. The second surface including a first inner array of electrodes arranged along a first path and configured to receive, at a first location on the first path, a first ion packet. The first inner array of electrodes are configured to generate a plurality of potential wells that include a first potential well and a second potential well. The first ion packet includes a first sub-packet of ions having a first mobility and a second sub-packet of ions having a second mobility, and the second ion packet includes a third sub-packet of ions having the first mobility and a fourth sub-packet of ions having the second mobility.
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公开(公告)号：US11953466B2
公开(公告)日：2024-04-09
申请号：US17327159
申请日：2021-05-21
IPC分类号： H01J49/16 , G01N27/622 , H01J49/06
CPC分类号： G01N27/622 , H01J49/061 , H01J49/16
摘要： Methods and apparatus for ion accumulation are disclosed. An apparatus for ion accumulation includes multiple regions. A first region receives and transfers ions to a second region using a first drive potential. The second region is switchable between a first state where it generates a first electric field preventing ions from further movement and entering a third region, and a second state where it generates a second electric field that guides the ions toward the third region. When in the first state, the ions are prevented from further movement by the first electric field, which causes the ions to accumulate in the second region. When in the second state, the ions are moved from the second region to the third region by the second electric field. A method of accumulating ions involves switching an electric field applied to a region between a trap state and a release state.
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公开(公告)号：US11670495B2
公开(公告)日：2023-06-06
申请号：US16880206
申请日：2020-05-21
CPC分类号： H01J49/063 , H01J49/022 , H01J49/065 , H01J49/30
摘要： A device includes a first surface, a second surface and a controller. The second surface is adjacent to the first surface. The first and the second surfaces define a first ion channel therebetween. The first ion channel extends along a first direction. The second surface includes a first plurality of electrodes including a first electrode and a second electrode spaced apart from the first electrode along a second direction lateral to the first direction. The first plurality of electrodes extends along the first direction. The first electrode is configured to receive a first voltage signal and generate at least a portion of a pseudopotential that inhibits ions in the first ion channel from approaching the second surface. The second plurality of electrodes is located between the first electrode and the second electrode and arranged along the first direction. The second plurality of electrodes are configured to receive a second voltage signal to generate a first traveling drive potential that travels along the first direction. The first traveling drive potential is configured to guide ions along the first ion channel. The device further includes a controller electrically coupled to the first and the second surface. The controller is configured to generate the first voltage signal and the second voltage signal.
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公开(公告)号：US20210364467A1
公开(公告)日：2021-11-25
申请号：US17327159
申请日：2021-05-21
IPC分类号： G01N27/622 , H01J49/16 , H01J49/06
摘要： Methods and apparatus for ion accumulation are disclosed. An apparatus for ion accumulation includes multiple regions. A first region receives and transfers ions to a second region using a first drive potential. The second region is switchable between a first state where it generates a first electric field preventing ions from further movement and entering a third region, and a second state where it generates a second electric field that guides the ions toward the third region. When in the first state, the ions are prevented from further movement by the first electric field, which causes the ions to accumulate in the second region. When in the second state, the ions are moved from the second region to the third region by the second electric field. A method of accumulating ions involves switching an electric field applied to a region between a trap state and a release state.
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公开(公告)号：US20200373139A1
公开(公告)日：2020-11-26
申请号：US16880206
申请日：2020-05-21
摘要： A device includes a first surface, a second surface and a controller. The second surface is adjacent to the first surface. The first and the second surfaces define a first ion channel therebetween. The first ion channel extends along a first direction. The second surface includes a first plurality of electrodes including a first electrode and a second electrode spaced apart from the first electrode along a second direction lateral to the first direction. The first plurality of electrodes extends along the first direction. The first electrode is configured to receive a first voltage signal and generate at least a portion of a pseudopotential that inhibits ions in the first ion channel from approaching the second surface. The second plurality of electrodes is located between the first electrode and the second electrode and arranged along the first direction. The second plurality of electrodes are configured to receive a second voltage signal to generate a first traveling drive potential that travels along the first direction. The first traveling drive potential is configured to guide ions along the first ion channel. The device further includes a controller electrically coupled to the first and the second surface. The controller is configured to generate the first voltage signal and the second voltage signal.
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