Services
- Realisation of the spectral responsivity of radiation detectors, based on cryogenic radiometers (spectral range from 200 nm to 2.0 μm)
- Spectral responsivity calibrations of radiation detectors (spectral range from 200 nm to 2.0 μm)
- Detector characterisation
- Traceability of optical radiant power measurements in photometry und applied radiometry (department 4.1)
Research
- Improved realisation of the spectral responsivity
- Extension of the spectral range
- Improvement of detector transfer standards
- High-accuracy calibration of detectors for the radiometric measurement of thermodynamic temperatures
Quantitative detection of radiation in the UV spectral range for the measurement of the spectral solar irradiance in the UV (cooperation with the Physikalisch-Metrologisches Observatorium Davos PMOD/WRC) - National and international cooperations
Tasks
The working group operates cryogenic radiometers as primary standards for the measurement of optical radiant power and for the realisation and dissemination of the spectral responsivity of detectors in the spectral range from 200 nm to 2.0 μm. A further field of work is the characterisation of detectors, in particular semiconductor photodiode detectors with respect to the uniformity, linearity, temperature dependence, and stability of its spectral responsivity. The research activities focus on the reduced uncertainty of detector transfer standards for the radiometric measurement of thermodynamic temperatures and for photometry und applied radiometry (department 4.1: Photometry and Applied Radiometry) as well as on the extension of the spectral range of the realisation and dissemination of the spectral responsivity.
Contact
| Head of Working Group |
| Dr. Lutz Werner |
|
|
|
|
| Address |
| Physikalisch-Technische Bundesanstalt |
lutz.werner
Printview
PDF