% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@INPROCEEDINGS{Froning:173061,
      author       = {Froning, Martina and Hill, Peter},
      title        = {{I}nternal {D}osimetry after {I}nhalation of {UF}6 - {A}
                      {C}ase {S}tudy},
      reportid     = {FZJ-2014-06474},
      year         = {2014},
      abstract     = {INTERNAL DOSIMETRY AFTER INHALATION OF UF6 - A CASE STUDYM.
                      Froning, P. HillForschungszentrum Jülich GmbH, S-BI, 52425
                      Jülich, GermanyIntroduction: During a release of UF6 in a
                      nuclear installation in Germany an employee was contaminated
                      externally and internally. Inhaled uranium is in the
                      chemical form UF6 very well soluble (class F) and can be
                      easily taken up into blood and the lymphatic
                      system.Monitoring: Extensive incorporation monitoring of
                      urine and feces, as well as measurements of blood,
                      nose-blow- and sputum samples on 234U, 235U and 238U
                      followed immediately after the incident. The total
                      monitoring period covered about 4 weeks.To enhance the
                      excretion rate a solution of 8.4 percent sodium bicarbonate
                      was administrated in the first few days as a means of
                      medical precaution. During this time urine and feces samples
                      taken were essentially of low volume (e.g. spot samples).
                      Excretion rates have been analyzed by means of ICP-MS and
                      α-spectrometry. The latter was used for quality assurance
                      of the results. The laboratory is flexibly accredited (DIN
                      ISO/IEC 17025:2005) for these test methods.Dose assessment:
                      Internal dose has been assessed following the rules of the
                      official German guideline on incorporation monitoring. This
                      guideline must be used for legal purposes. An effective Dose
                      of E = 0.8 mSv and a lung dose of HLung = 14.5 mSv have been
                      calculated. Additionally expert software has been used for
                      internal dose calculation. Since excretion rates in the
                      beginning of the monitoring period were enhanced, later
                      samples were especially helpful in realistically determing
                      internal dose.Final remarks: The biocinetic uranium model of
                      ICRP78[1] seems not to be adequate to describe excretion
                      within the first hours after intake. The data obtained from
                      spot samples during the first day indicate an
                      underestimation of exretion rates by several orders of
                      magnitude. The study shows that extended follow-up
                      monitoring can help to clarify the dose relevant medium-term
                      systemic uptake after an incident.A recent communication of
                      the case study in English (extended abstract) can be found
                      in ref. [2].[1] ICRP Publication 78; Individual Monitoring
                      for Internal Exposure of Workers; Annals of the ICRP Vol. 27
                      No. 3/4, 1997[2] M.Froning, H.Doerffel and P.Hill; Internal
                      Dosimetry after Inhalation of UF6 - A Case Study; Fourth
                      European IRPA Congress ‘Radiation Protection Culture – A
                      global challenge, June 23-27,2014, Geneva, Switzerland; Book
                      of abstracts, Paper PS5-04/6;
                      http://www.irpa2014europe.com/downloads (last accessed:
                      July, 28th 2014)},
      month         = {Sep},
      date          = {2014-09-24},
      organization  = {VI International Conference
                       'Semipalatinsk Test Site: Radiation
                       Legacy and Development Perspectives',
                       Kurchatow (Kazakhstan), 24 Sep 2014 -
                       26 Sep 2014},
      subtyp        = {After Call},
      cin          = {S-BI / S-B},
      cid          = {I:(DE-Juel1)S-BI-20100518 / I:(DE-Juel1)S-B-20090406},
      pnm          = {899 - ohne Topic (POF2-899)},
      pid          = {G:(DE-HGF)POF2-899},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/173061},
}