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US 10,770,280 B2Granted
Right angle time-of-flight detector with an extended life time
AssigneeLeco Corporation
InventorsAnatoly N. Verenchikov, Aleksey Vorobyev
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Abstract
There is proposed a right angle time-of-flight detector comprising a conductive converter for emitting and accelerating secondary electrons, a magnetic field formed by at least one magnet for deflecting the secondary electrons at a right angle and a sealed photo-multiplier. The detector is expected to provide an extended resource and dynamic range and may be fit into tight assemblies, such as MR-TOF MS.
Claims16
A time-of-flight detector, comprising:
- a conductive converter exposed parallel to a time-front of detected ion packets and generating secondary electrons;
- at least one electrode with a side window, wherein the converter is negatively floated relative to the electrode by a voltage difference between 100V and 1000V;
- at least one magnet with magnetic field strength between 10 Gauss and 1000 Gauss for bending electron trajectories towards said side window;
- a scintillator floated positively relative to a surface of said converter by 1 kV to 20 kV and located past said side window at 45 degrees to 180 degrees relative to said converter;
- and
- a sealed photo-multiplier past said scintillator.
3 more elements
A right angle time-of-flight detector, comprising:
- a single microchannel plate for converting detected ion packets into secondary electrons;
- an electrostatic bender of secondary electron;
- a scintillator floated positively relative to said microchannel plate by 1 kV to 20 kV and located past said microchannel plate at 45 degrees to 90 degrees;
- and
- a sealed photo-multiplier past the scintillator.
2 more elements
Dependencies are inferred from the claim text.