Prof. Dr.-Ing. Dr. h. c. Uwe Hampel
Experimental Thermal Fluid Dynamics
Phone: +49 351 260 2772
Dr. Björn Wolf
Head HZDR Innovation GmbH
Head Technology Transfer & Innovation
Phone: +49 351 260 2615
Radiometric density measurement in low-density media
The radiometric measurement of small density is preferably carried out with a soft beta radiation. In thick metallic components the measurement can not be done, because the radiation is completely absorbed in the walls.
A new type of density measurement is based on the measurement of the range of positrons in the measured medium. Positrons have the advantage that their annihilation radiation (511 keV gamma) can penetrate thicker metal walls.
A positron emitter is coupled at the side of the measuring medium. The spread is monitored by several detectors, connected in coincidence, which register the annihilation radiation. The sensitivity is the same as when using beta radiation.
- Design and optimization of process parameters and device performance values
- Consultancy for users
See also our site for further information.