COSAM » Departments » Chemistry & Biochemistry » Facilities » massspec » Learn about mass spectrometry » MALDI-TOF » Detectors

There are two detectors in the instrument.  Both are multi-channel plates which amplify the ion signal.  The detectors are operated at very high voltages.
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Multichannel plate detectors (MCP) use numerous channels to collect and amplify ions or electrons
multichannel plate detector cartoon
credit Andreas 06
The linear detector viewed on the side and from the bottom with an arrow indicating the MCP.
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The MCP which detects ions after they have been modified by the reflectron is shown below.  Notice that the MCP is offset from the slit where the ions traverse the time-of-flight tube the first time.
reflectrondetector.png


Last Updated: 01/07/2020