Ash content measurement

Ash content is one of the main indicators of the paper web quality. Our radioisotope sensor (Fe55) provides a great means for online monitrong of ash content as a part of automated quality systems.

Specifications:
  • Sensor type radioisotope
  • Operation principle X-ray
  • Ash content measurement range 0 - 30%
  • Isotope element Fe55 isotope, enclosed
  • Isotope activity not more than 3,7 GBq
  • Isotope half-life period 2,73 years
  • Limit of acceptable random error of measurement (2σ, 50-200 g/m2, white clay) 0,2…0,8 %
  • Limit of acceptable random error of measurement (2σ, 50-200 g/m2, chalk) 0,15…0,6 %
  • Gamma dose rate at device enclosure not more than 1 μSv/h
  • Gamma dose rate at 1 m distance not more than 0.2 μSv/h