Bildgebender Ionendetektor für Massenspektrometer basierend auf einem Kaskadierten Signalverstärker

Details

Veröffentlichungs-Nr.

EP3032568

Aktenzeichen

EP15197892

Anmeldetag

3. Dezember 2015

Veröffentlichung

17. Oktober 2018

Erteilung

17. Oktober 2018

Rechtsraum

EP

IPC

H01J49/02H01J43/04H01J49/42

Abstract

A detector system for a mass spectrometer comprises: a metal channel dynode (MCD) comprising at least one perforated metal plate configured to receive the exiting ions and eject electrons in response; a plurality of electron-to-photon converters arranged in a parallel stacked configuration, each such converter comprising a substrate plate having a phosphor coating on a first face; and an electrode film disposed on the phosphor coating; at least one photocathode, each of the at least one photocathode disposed between a respective pair of the plurality of electron-to-photon converters; an optical detector optically coupled a last one of the electron-to-photon converters; and at least one direct current power supply configured to apply, in operation, a respective bias electrical potential to the MCD and each of the electrode films and photocathodes.

Anmelder

Firma

Thermo Finnigan LLC

Land

🇺🇸 USA

Fachgebiete