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US 2026/0018399 A1Published application
Ion Detector and Mass Spectrometer
AssigneeShimadzu Corporation
InventorsYohei TOJI, Masaru NISHIGUCHI, Koichi KIMURA, Ririko NAKAOKA
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Abstract
An ion detector (24) comprises a conversion dynode (241), a secondary electron multiplier tube (242), and a DC voltage application unit (243) that applies a DC voltage between the conversion dynode (241) and the secondary electron multiplier tube (242). A part or all of a surface of the conversion dynode (241), including an ion collision surface (2410) where ions collide, is made of a substance containing one or more elements selected from the group consisting of titanium, vanadium, and chromium at a higher density than iron and aluminum.
Claims6
An ion detector, comprising:
- a conversion dynode;
- a secondary electron multiplier tube;
- and
- a DC voltage application unit configured to apply a DC voltage between the conversion dynode and the secondary electron multiplier tube,
- wherein a part or all of a surface of the conversion dynode, including an ion collision surface where ions collide, is made of a substance containing one or more elements selected from the group consisting of titanium, vanadium, and chromium at a higher density than iron and aluminum.
2 more elements
Dependencies are inferred from the claim text.