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3rd Workshop on "Managing Internal Exposures"

"Managing Internal Exposures", Neuherberg, Germany, November 1999

ean3.gifpdf.png Download the Summary and Recommendations

he European ALARA Network held its third Workshop devoted to "Managing Internal Exposure" in November 1999 at Bundesamt fur Stralhenschutz (BfS), Institut fur Stralhenhygiene facilities in Munich. The 80 participants from 12 countries were specialists of internal dosimetry, representatives of regulatory bodies, managers in charge of risks management within different types of facilities (nuclear industry, phosphate industry, radio-pharmaceutical industry, nuclear medicine services in hospital…). More than thirty oral presentations and twenty posters gave rise to very fruitful discussions and led to a final panel session where the most important lessons learned from the Workshop were formulated into conclusions and recommendations.



Programme and Downloadable Papers

Paper Title, authors PDF

1st Session: Setting the Scene -
Chaired by R. Coates (UK) and N.G. Kelly (EC)

1 ALARA and internal exposure : some lessons from external exposure management
C. Lefaure (France)
2 What drives internal dosimetry monitoring regimes - Technical operational commercial or IR consideration?
E.J. Curson, A.R. Britcher (UK)
3 Prospects for assessing internal exposure. Examples from the nuclear and non-nuclear sector
A.W. Van Weers et al (The Netherlands)
4 Sampling for airborne dusts in workplaces
O. Witschger (France)
5 Quality assurance (quality control, intercomparisons)
D. Beyer et al (Germany)

6 EULEP/EURADOS feedback
H. Doerfel (Germany)

2nd Session: Regulatory Framework  - Chaired by P. Hubert ( France)
7 Promoting internal exposure management : the IAEA present and future documents
M. Gustafsson (IAEA)
8 The application of HSE´s safety assessment principles for nuclear plants for minimising exposure to internal radiations
D. N. Simister (UK)
9 Monitoring concept as laid down in the German guidelines
K. Henrichs et al (Germany)
10 Nordic regulatory aspects on control of internal exposure
T. Rahola et al (Finland)
11 Internal exposure management: NRC roles and responsibilities and recent licensee performance
R.Nimitz (USA)

3rd Session: Case Studies I (from the non-nuclear industry)
- Chaired by G. Tarroni (Italy)

12 Technical improvements and procedure changes in ´80 years at the SORIN BIOMEDICA centre Italy for applying ALARA principles and reducing internal contamination doses
M. Ardissino, M. Garbarino (Italy)

13 Evaluation and reduction of the internal contamination for workers, due to tritium targets used in a neutron generator plant
F. Lucci, S. Sandri (Italy)
14 Internal exposures in research and clinical medicine
M. Lasmann (Germany)
15 Models parameters and technical options for controlling the internal contamination and for reducing doses of exposed workers in one of the largest Italian hospitals
G. Borasi, L. Mondini (Italy)
16 ALARA in NUM including PET
W. Eschner (Germany)

17 Accidental inhalation and extensive contamination of Sr-90 in a radioactive facility in November 1995
I. Villanueva et al (Spain)

4th Session: Case Studies II (from the nuclear industry), poster session and software demonstration - Chaired by E. Sollet (Spain)
18 A radiological protection study in a French uranium refinement plant
J.P. Degrange et al (France)
19 Managing internal dosimetry - An operational perspective
S. E. Beaty (UK)

20 Radioactive internal doses in the EN(USA) LEU fuel manufacturing plant and the evolution in time after ALARA criteria
A. Perez Fonseca (Spain)

21 Internal Doses at Enusa Juzbado Fuel Fabrication Plant. Estimation and Application Alara Criteria
G. Sánchez, A. Pérez, J.J. Vallecillo (Spain)

5th Session: Case Studies III (from NORM and others) - Chaired by L.E. Holm (Sweden)
22 Working with ores containing naturally occuring radioactive material
P. Shaw et al (UK)
23 Phosphorus production and natural radionuclides: the consequences for the operators concerned
W.H.H. Erkens (The Netherlands)
24 Natural radioactivity found in bioassay measurements
C. Hurtgen (Belgium)

25 Reduction of internal exposure from an alpha foil production operation
T. Shackleton et al (UK)
26 Internal exposures by tritium in a high flux research reactor
F.M Wagner (Germany)

6th Session: Case Studies IV (operational dose management) - Chaired by G. Weimer
27 What are internal doses more subjected for concern than external doses?
R. Sundell (Finland)

28 Incorporation monitoring during decommission:- Am 241 problem in Gundremmingen U. Kratzel et al (Germany)
29 Incorporation monitoring during decommissioning of a hot-cee facility in Karlstein
N. Neudert et al (Germany)
30 ALARA during the equipment removal activities and decontamination of spent fuel pools in Vandellos I nuclear power plant
T. Ortiz et al (Spain)

7th Session: Final Session -
- Chaired by Ch. Lefaure (France), J. Croft (UK) and A. Schmitt-Hannig (Germany)

31 Radon in workplaces
M. Markannen (Finland)

Poster Session
32 An analytical method for soling biokinetics intake models involving recycling and random inputs: application to the Wrenn uranium model (computer demonstration)
G. Sánchez (Spain)
33 The dose coefficients data base ECRIN (computer demonstration)
M.L. Perrin (France)

34 A sotware tool to estimate effective doses from intakes of radionuclides (computer demonstration)
J.P. Coleto Fiaño, E Sollet Sanudo (Spain)

35 The dose coefficient database ECRIN
M.L. Perrin (France)

36 The IMBA: the UK approach to internal dosimetry for the year 2000
Birchall et al (UK)

37 Internal contamination incidents occurred at Vandellos I NNP during dismantling tasks
I. Villanueva et al (Spain)
38 Dose reduction practice in a Tritium radiochemical manufacturing facility
B. Russ (UK)

39 OptRepresentativity of air activity concentration sampling
A. Gisbertz, R. Hoffmann (Germany)

40 Monitoring of external workers
W. Roth (Germany)
41 ALARA in fuel element production
G. Wagner (Germany)

42 The German Radiation Protection register
G. Frasch (Germany)

43 Regional radiation protection centres of workmen compensation institutions
F. Fehringer et al (Germany)

44 Lung counting with Ge detectors: In- vivo measurement of actinides
M.A. López Ponte, T. Navarro Bravo (Spain)

45 Internal dosimetry of natural radionuclides
C.W.M. Timmermanns (The Netherlands)

46 Technical and meteorological features of a personal alpha dosimeter
S. Bernhard, J.F. Pineau, F. Sarradin (France)

47 Experiences of whole body counting of workers at Ringhals NPP
A. Löverfors Daun (Sweden)

48 Comparison of various monitoring methods for quality assurance purposes at thoriated electrode productionT. Ludwig (Germany)
49 Assessment of quarterly urinary bioassays as a monitoring method for thorium intakes of gas mantle manufacturing workers and comparison of the different ICRP models on the basis of the results
W. Riedel, A Eisenmenger (Germany)

50 Contribution of radionuclides from natural sources for measured excretion rates (thorium, uranium)
B. Grosche, K. Henrichs (Germany)

51 Internal dose evaluation for workers employed in an industry using enamel paints containing zirconium silicate
M. Berico, C.M. Castellani et al (Italy)