Economou, Nicholas P The history and development of the helium ion microscope. [electronic resource] - Scanning - 83-9 p. digital Publication Type: Historical Article; Journal Article ISSN: 1932-8745 Standard No.: 10.1002/sca.20239 doi Subjects--Topical Terms: Biomedical Research--historyChemical PhenomenaHeliumHistory, 20th CenturyHistory, 21st CenturyIonsMaterials Testing--instrumentationMicroscopy--history