摘要:
The present invention refers to a system comprising a gas field ion source (120) capable of interacting with a gas (182) to generate an ion beam (192) and an ion optics (130) configured to focus the ion beam onto a surface (181) of a sample (180) so that the ion beam can interact with a sample to cause particles (194) to leave the sample, wherein the ion beam has a spot size with a dimension of 10 nm or less at the surface of the sample. The system also comprises at least one detector (150), which is configured so that, during use, the at least one detector can detect secondary ions (194) emitted by the sample due to the interaction of the ion beam with the surface of the sample, wherein the at least one detector is further configured to analyse the detected secondary ions according to their mass. The system according to the present invention also comprises an electronic processor that can process information based on the detected secondary ions to determine information about the mass of the detected secondary ions.
摘要:
The present invention refers to a method that comprises the following steps: Providing an electrically conductive tip with a terminal shelf which has between three and twenty atoms, generating a first ion beam by interacting a gas with the electrically conductive tip, providing an ion optical system, eliminating by the ion optical system some of the ions in the first ion beam to generate a second ion beam comprising ions 70% or more of which are generated via interaction of the gas with one atom of the terminal shelf of the electrically conductive tip, and interacting the second ion beam with an activating gas to promote a chemical reaction at a surface of a sample. The figure shows a gas field ion microscope system (100).
摘要:
The present invention refers to a system comprising a gas field ion source (120) capable of interacting with a gas (182) to generate an ion beam (192) and an ion optics (130) configured to focus the ion beam onto a surface (181) of a sample (180) so that the ion beam can interact with a sample to cause particles (194) to leave the sample, wherein the ion beam has a spot size with a dimension of 10 nm or less at the surface of the sample. The system also comprises at least one detector (150), which is configured so that, during use, the at least one detector can detect secondary ions (194) emitted by the sample due to the interaction of the ion beam with the surface of the sample, wherein the at least one detector is further configured to analyse the detected secondary ions according to their mass. The system according to the present invention also comprises an electronic processor that can process information based on the detected secondary ions to determine information about the mass of the detected secondary ions.
摘要:
The present invention refers to a system, comprising a scanning electron microscope capable of providing an electron beam and a gas field ion source capable of interacting with a gas to generate an ion beam. The scanning electron microscope and the gas field ion microscope are positioned so that, during use, both the electron beam and the ion beam can be used to investigate a sample. A system according to the present invention also comprises a focused ion beam instrument.
摘要:
The present invention refers to a method that comprises the following steps: Providing an electrically conductive tip with a terminal shelf which has between three and twenty atoms, generating a first ion beam by interacting a gas with the electrically conductive tip, providing an ion optical system, eliminating by the ion optical system some of the ions in the first ion beam to generate a second ion beam comprising ions 70% or more of which are generated via interaction of the gas with one atom of the terminal shelf of the electrically conductive tip, and interacting the second ion beam with an activating gas to promote a chemical reaction at a surface of a sample. The figure shows a gas field ion microscope system (100).
摘要:
The present invention refers to a method that comprises the following steps: Providing an electrically conductive tip with a terminal shelf which has between three and twenty atoms, generating a first ion beam by interacting a gas with the electrically conductive tip, providing an ion optical system, eliminating by the ion optical system some of the ions in the first ion beam to generate a second ion beam comprising ions 70% or more of which are generated via interaction of the gas with one atom of the terminal shelf of the electrically conductive tip, and interacting the second ion beam with an activating gas to promote a chemical reaction at a surface of a sample. The figure shows a gas field ion microscope system (100).
摘要:
The present invention refers to a method that comprises the following steps: Providing an electrically conductive tip with a terminal shelf which has between three and twenty atoms, generating a first ion beam by interacting a gas with the electrically conductive tip, providing an ion optical system, eliminating by the ion optical system some of the ions in the first ion beam to generate a second ion beam comprising ions 70% or more of which are generated via interaction of the gas with one atom of the terminal shelf of the electrically conductive tip, and interacting the second ion beam with an activating gas to promote a chemical reaction at a surface of a sample. The figure shows a gas field ion microscope system (100).
摘要:
The present invention refers to a method that comprises the following steps: Providing an electrically conductive tip with a terminal shelf which has between three and twenty atoms, generating a first ion beam by interacting a gas with the electrically conductive tip, providing an ion optical system, eliminating by the ion optical system some of the ions in the first ion beam to generate a second ion beam comprising ions 70% or more of which are generated via interaction of the gas with one atom of the terminal shelf of the electrically conductive tip, and interacting the second ion beam with an activating gas to promote a chemical reaction at a surface of a sample. The figure shows a gas field ion microscope system (100).
摘要:
A specimen enclosure assembly for use in an electron microscope and including a rigid specimen enclosure dish having an aperture and defining an enclosed specimen placement volume, an electron beam permeable, fluid impermeable, cover sealing the specimen placement volume at the aperture from a volume outside the enclosure and a pressure controller communicating with the enclosed specimen placement volume and being operative to maintain the enclosed specimen placement volume at a pressure which exceeds a vapor pressure of a liquid sample in the specimen placement volume and is greater than a pressure of a volume outside the enclosure, whereby a pressure differential across the cover does not exceed a threshold level at which rupture of the cover would occur. 2