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Updated: Jul 18, 2026

Electrochemical Etching and Characterization of Sharp Field Emission Points for Electron Impact Ionization
Published on: July 12, 2016
50 years of the ETA: "the selenium connection"
Peter P A Smyth1, Leonidas H Duntas2
1University College Dublin, National University of Ireland, Galway, Ireland.
Abstract:
The recent celebration of the 50 years of the ETA closely coincided with that of the 200 years since the discovery and description of selenium, an essential trace element for normal thyroid gland function and thus an adjuvant in the treatment of thyroid diseases. The aim of this commentary is to briefly outline the half centennial of the ETA while also signaling important moments in the history of selenium, developments in its availability round the world, details of its connection with thyroid function and, finally, its current and projected modes of application.
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