TRANSPORT AND EXTRACTION IN ZEUS DISPLAYS

In a Zeus display hopping electrons are transported through channels w ith extraction holes. If a sufficient transport held is applied, the e lectrons hop row and leakage through the holes is negligible. The elec trons can be extracted from the channel by applying a positive voltage pulse to an extraction electrode. With sufficient pulse amplitude the extraction efficiency is 100 %, independent of small variations in ma terial properties, which enables the creation of uniform images. Exper iments on a model transport channel confirm the mechanisms behind tran sport and extraction.