Application of Channel Multiplier Plates as Image Information Preprocessors

Abstract

The dead time of a channel plate has been regarded so far as an inevitable defect in many applications; however, it is pointed out in this paper that it can be considered as the memory time during which the input image is stored. Line drawing, moving object detection, and inversion of images were performed by an experimental preprocessor using the dead time characteristics. The device should be recognized as a two-dimensional operator with no scanning and without an electronic computer. The features of the device are very high-speed operation and high sensitivity for dark images.

Critical factors determining the quantification capability of matrix-assisted laser desorption/ionization– time-of-flight mass spectrometry

“…Before amplification is complete, in a given microchannel, it is unable to deliver amplification to another incoming ion. The period for a microchannel to fully recover is termed dead time, and it is typically in the millisecond range [64,72]. As most data acquisition times under MALDI-TOF MS are in the tens of microseconds, every microchannel can only receive one effective ion per acquisition event.…”

Novel 2D binning approach for advanced LIMS depth profiling analysis

“…It is wellknown that the recovery times of such systems are in the order of ms and various models were developed for a better understanding and characterisation of such systems. [28][29][30][31][32] Therefore, the operation of the laser system at a pulse repetition rate of 1 kHz (corresponding to 1 ms delay between each laser shot) may lead to undesired signal loss. Note that the communication to the sub-units in the layer-by-layer approach leads to total delays of $600 ms between each red laser shot, which is sufficiently long to avoid potential gain reduction of the multichannel plate detector.…”