Development of a personal dosemeter system for UV radiation based on optically stimulated luminescence

01.01.2005 - 06.11.2007
Assigned research project
The medical, industrial and technological applications of ultraviolet (UV) radiation are continuously growing. This stimulates the necessity to design a portable monitoring instrument to assess UV exposure at workplaces. Utilisation of solid-state dosimetry methods combines all advantages of common luminescent detectors, such as small size, robustness and easy handling. To comply with these requirements a novel reader for optically stimulated luminescence (OSL) is developed in-house. The system shall be multifunctional in its potential applicability to both UV dosimetry as well as geological and archaeological dating. Initial calibration is performed with a 300 W solar simulator. Air mass and band pass filters are used to modify the emitted spectrum. A multi-purpose software operating under Microsoft Windows 2000/XP is developed to control the readout process and analyse the decay curves. The user is enabled to switch between different readout modes: continous wave (CW-OSL), linearily modulated (LM-OSL), delayed (DOSL) or pulsed OSL (POSL). An extensive study of different luminescent phosphors (AlN-Y2O3, α-Al2O3:C, KBr:Eu, KCl:Eu, MgS:Ce,Sm, ZrO2 and kunzite) shall select the most appropriate material for the purpose of routine UV dosimetry.

People

Project leader

Project personnel

Institute

Contract/collaboration

  • Allgemeine Unfallversicherungsansta (AUVA)

Research focus

  • Structure-Property Relationsship: 30%
  • Environmental Monitoring and Climate Adaptation: 70%

Keywords

GermanEnglish
UV-StrahlungUV radiation
Optisch stimulierte Lumineszenz (OSL)Optically stimulated luminescence (OSL)
PersonendosimetriePersonal dosimetry

Publications