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2020 – UV-Sensoren zur Überwachung der UVC-Oberflächenentkeimung

von

Dr. Tilman Weiss, sglux GmbH, Berlin, Germany

UV-Sensoren zur Überwachung der UVC-Oberflächenentkeimung

Zusammenfassung
Bei der Entkeimung von Oberflächen in Artzpraxen, Krankenzimmern, Apotheken aber auch in der Lebensmittel- und Medikamentenproduktion sowie öffentlich zugänglichen Sanitärbereichen kommt neben chemischen Verfahren auch UVC-Strahlung zum Einsatz. Bei diesen Anwendungen ist die UV-Strahlung entweder am Ort der Erzeugung oder am Wirkort oder an beiden Orten zu erfassen. So kann die zur sicheren Keimabtötung mindestens erforderliche Dosis hinreichend genau ermittelt werden. Der Bericht liefert weitere Details und stellt geeignete Mess-Produkte aus dem sglux-Sortiment vor.

2017 – Degradation of opaque quartz-glass diffusers under high intensity UV irradiation

von

N. Papathanasiou, G. Hopfenmüller, Michael Matalla, T. Weiss,
sglux GmbH, Berlin, Germany

Presentation on IUVA World Congress Spotlights Water Disinfection Technologies 2017, Dubrovnik, Croatia

Abstract
In UV water purification applications UV sensors are monitoring the dosage of UV irradiation as according to ÖNORM and DVGW standards. sglux GmbH is manufacturing such sensors employing opaque synthetic quartz-glass diffusers as entrance windows. This paper investigates the influence of high-intensity UV irradiation on the transmission behavior of these diffusers. Quartz-glass and micro-porous quartz-glass were investigated. The sensors were continuously monitored while irradiated by a 1kW medium pressure Hg lamp with a total UV irradiance of 1000mW/cm² for 800 hours. Before and after the aging period the total transmissions of the diffusers were measured.

2011 – Characterisation of new optical diffusers used in high irradiance UV radiometers

von

Barton¹, B., Sperfeld¹, P., Nowy¹, S., Towara¹, A., Hoepe¹, A., Teichert¹, S., Hopfenmueller², G., Baer³, M. and Kreuzberger³, T.
¹Physikalisch-Technische Bundesanstalt Braunschweig und Berlin (PTB), 4.1 Photometry and Applied Radiometry, Braunschweig, Germany, ²sglux GmbH, Berlin, Germany, ³SGIL Silicaglas GmbH, Langewiesen, Germany

Proceedings of NEWRAD2011, edited by S. Park and E. Ikonen. (Aalto University, Espoo, Finland, 2011) p. 278.

Abstract
Diffusers are essential components of UV radiometers used as transfer standards. They improve the insensitivity to differing radiation situations. In combination with a beam limiting aperture, a diffuser defines the irradiated area [1]. A detailed study of different properties of UV diffusers is shown.