Acta Physica Hungarica

, Volume 59, Issue 1–2, pp 15–18 | Cite as

Assessment of uranium content in the lungs of nuclear fuel workers at AB ASEA-ATOM

  • J. Gustafsson
  • O. Värnild
Internal Doses


A method has been developed for analysis of the pulse height distributions from thorax measurements on uranium workers. It takes into consideration the very few and low energy gammas emitted from uranium. Four Planar HpGe detectors 2000 mm2 × 10 mm, are used. By choosing predetermined energy intervals for the peaks and the surrounding background, the statistical errors are minimized to give an acceptable lower level of detection when ordinary computer assisted peak search programmes do not work. The MDA of an individual measurement is approximately 2.0 Bq U-235. All pulse height distributions are stored on floppy discs by the use of a PDP 11/2 computer on line with the MCA. It is possible to add different measurements to achieve an average MDA for a group of people just above the background and to assess bodyburden differences which cannot be seen in a single 40-minute measurement. The results from the first year of operation will be presented along with the method and the specially designed counting room.


Uranium Radon Uranium Dioxide Uraniumhexafluoride Pulse Height Distribution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Limits for Intakes of Radionuclides by Workers, ICRP Publ. 30, Part 1, 1979.Google Scholar
  2. 2.
    R. Falk, In Vivo Measurements of Lungburden. Rad fys dep/SSI. Project SSI p.127, 1981.Google Scholar
  3. 3.
    S.E. Frost and W. Neil, Conf. Proc. IAEA-SM-276/35 Paris, 1984.Google Scholar
  4. 4.
    H.E. Palmer and G.A. Rieksts, Conf. Proc. IAEA-SM-276/13 Paris, 1984.Google Scholar
  5. 5.
    D. Newton et al, Conf. Proc. IAEA-SM-276/01 Paris, 1984.Google Scholar
  6. 6.
    F.A. Fry and T. Summerling, Health Physics,39, pp.89–92, 1980.Google Scholar

Copyright information

© with the authors 1986

Authors and Affiliations

  • J. Gustafsson
    • 1
  • O. Värnild
    • 1

Personalised recommendations