Daly Detector:
A Daly detector is a gas phase ion detector that consists of a metal "doorknob", a scintillator (phosphor screen) and a photomultiplier. Ions that hit the doorknob release secondary electrons. A high voltage (ca. -20,000 V) between the doorknob and the scintillator accelerates the electrons onto the phosphor screen where they are converted to photons. These photons are detected by the photomultiplier.
Advantages:
As acceleration is done , it can improve the sensitivity for high mass ions in case of Time of Flight analyzer.
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