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Prof. Dr. Uwe Hampel
Head Experimental Thermal Fluid Dynamics
u.hampel@hzdr.de
Phone: +49 351 260 - 2772
Fax: 12772, 2383

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.

 

Our offer:

  •  Design and optimization of process parameters and device performance values
  •  Licensing
  •  Consultancy for users

 

See also our site for further information.

 


Contact

Prof. Dr. Uwe Hampel
Head Experimental Thermal Fluid Dynamics
u.hampel@hzdr.de
Phone: +49 351 260 - 2772
Fax: 12772, 2383