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News, Insights, and Publications

Get the latest news on Varadis and our industry including key insights and publications from experts in the field.

Engineers Journal: Tyndall’s radiation detection technology spins out to Varadis

July 10, 2019
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Published in the Engineers Journal Article on 8th July 2019. A novel radiation detection technology, developed at Tyndall National Institute, has been licensed exclusively to Cork-based Varadis. Ionising radiation such as gamma rays, protons and X-rays Prof William Scanlon, CEO, Tyndall, and Brad Wrigley, CEO, Varadis, pictured at Tyndall at…

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Gamma-Ray Irradiation and Post-Irradiation Responses of High Dose Range RADFETs

June 28, 2019
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Abstract: Gamma-ray irradiation and post-irradiation responses have been studied for the two types of radiation sensitive p-channel MOSFETs (RADFETs) from different manufacturers. In addition to, in dosimetric applications standard, threshold voltage measurements at a single specified current, transistor – and charge-pumping characteristics have been monitored. This has been shown to…

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The fixed oxide trap modelling during isothermal and isochronal annealing of irradiated RADFETs

June 28, 2019
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Abstract: The density of fixed traps (FTs), Nft (cm−2), during isothermal annealing of irradiated radiation-sensitive field-effect transistors (RADFETs) from room temperature to 200 ◦C has been modelled. The modelling has shown that a simple, two-defect model (2DM), containing two defect types: one defect type for positively charged FTs (PCFTs), and…

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Nuclear Inst. and Methods in Physics Research B

June 28, 2019
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Abstract: Pre-irradiation device characteristics, gamma radiation response, and possible use in radiation dosimetry have been investigated for MOSFETs with a 100 nm thick Er2O3 gate dielectric. The performance of these novel devices has been compared with that of commercial pMOS dosimeters (RadFETs) with a standard SiO2 gate oxide of the…

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