Electron multiplier with enhanced ion conversion

Details Electron multiplier with enhanced ion conversion Electron multiplier with enhanced ion conversion

2006-04-11

2006-04-11

Smoot, Stephen W. (Department: 2813)

Semiconductor device manufacturing: process

Electron emitter manufacture

C313S1030CM

Reexamination Certificate

active

07026177

ABSTRACT:
A replaceable, electronically-isolated, MCP-based spectrometer detector cartridge with enhanced sensitivity is disclosed. A coating on the MCP that enhances the secondary electron emissivity characteristics of the MCP is selected from aluminum oxide (Al2O3), magnesium oxide (MgO), tin oxide (SnO2), quartz (SiO2), barium flouride (BaF2), rubidium tin (Rb3Sn), berrylium oxide (BeO), diamond and combinations thereof. A mass detector is electro-optically isolated the from a charge collector with a method of detecting a particle including accelerating the particle with a voltage, converting the particle into a multiplicity of electrons and converting the multiplicity of electrons into a multiplicity of photons. The photons then are converted back into electrons which are summed into a charge pulse. A detector also is provided.

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