WG10 Progress Report

8/14/2019 WG10 Progress Report

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General Assembly Barcelona 6 February 2013

EURADOS General AssemblyBarcelona, Spain

February 6, 2013

P. Fattibene

WG10- Retrospective dosimetry

Progress Report


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WG10 members

64 full members 43 institutions18 corresponding members

In 2012 - 19 new full members (joining TG4/6/7)

BFS GermanyCEA FranceCIEMAT SpainDOZIMED RomainiaEC ECENEA ItalyGUMED PolandHAS HungaryHMGU GermanyHPA UKIFJ-PAN PolandIMR RussiaIORH SerbiaIRSN FranceISS Italy

ITN PortugalLIU SwedenLU SwedenLUMC NetherlandsNAMS Ukraine UkraineNHS UKNRPA NorwayRPI Check RepublicRSC LithuaniaSCK-CEN Belgium

SIOH SerbiaSTUK Finland

SU SwedenSURO Check RepublicTAEA TurkeyTECK Turkey

U Babes-Bolyai RomaniaU Balikesir Turkey

UCLOUVAIN BelgiumUGENT BelgiumUNI DURHAM UK

UNI LUND Sweden

UNI OSLO NorwayUNIMI ItalyUNIPA Italy

URMCR RussiaURPI UkraineUSP Brasil


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WG10 Tasks

WG10

Task10.3: Organisation of a

training school (2012)

Task10.4: Intercomparisonon physically based methods(cntd)

Task 10.5: EURADOSreport on WG10 activities(2013)

Task 10.6: Development of a commonapproach to uncertainty estimation (cntd)

Task 10.7/WG7: Biodosimetryafter internal contamination (cntd)

EPR

OSL

Paper IntercomparisonTraining course

Therapeuticexposures

Diagnosticradiology

Occupational andgeneral publicexposures


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Tasks achieved in 2012


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TG10.3 : EURADOS School on Retrospective Dosimetry

Neuherberg, Germany22-26 October 2012

Purpose:

- intended for scientists who are new in the field or want to deepen knowledge- focus on assay performance after unclear or assumed exposure

Organising committee:Horst Romm (chair)Clemens Woda (co-chair)Ulrike KulkaUrsula OestreicherUte Rler

Albrecht Wieser


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5 daysof tutorials and practical exercises in

EPR, OSL, TL,dicentric , CMBN and H2AX Assay


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QUESTIONNAIRE AND FEEDBACK

12 Participants

The background of the participants:- Towards a degree (MSC): 4 (33,3%)- Towards a degree (PhD): 5 (41,7%)- Continuing professional education 3 (25,0%)

Most of them had some experience in EPR / OSL

Rating of overall quality of the course: 4.8 / 5They learnt a lot from the course: 4.5 / 5All participants would recommend the course

to their colleagues

The working atmosphere was excellent.



Tasks in progress



Aim

To validate the retrospective dosimetry methods based on

EPR/glass and OSL/resistors which have been developed in

the framework of the MULTIBIODOSE project

Task chairs: P. Fattibene, C. Woda

TG10.4 Intercomparison on physically based methods

GlassElectronic

components EPRSL



To date:

8-9 November 2012: meeting at IRSN

Participants: 14 EPR and 14 OSL from 24 institutions

Hands-on training.Participants received irradiated mobile phones and were asked to: Measure the samples Asses the dose and the uncertainty

Correct for signal fading

Results are being collected. Will be discussed during this meeting.

TG10.4 Intercomparison on physically based methods


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0

0.5

1

1.5

22.5

3

3.5

4

4.5

5

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14

D o s e ( G

y )

Participant ID

TG10.4 Preliminary EPR results

Given doses:D1


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TG10.4 Preliminary OSL results

0 2 4 6 8 10 12 140

1

2

3

4

5

6

7 protocol with preheat protocol without preheat given dose

E s

t i m a

t e d d o s e

( G y

)

Lab No.Given dose=3.3 Gy


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Aims: ToSurvey

Compare

Assess

... techniques of uncertainty analysis for physical and biological retrospectivedosimetry

(TG chairs: E. Ainsbury; F. Trompier)

TG10 6Development of common approach to uncertainty estimation

Deliverable:

A paper surveying and comparing uncertainty evaluation methods used withinWG10 members.

To date:Methodologies across laboratories/dosimetry methods were collected and arebeing analized.

A paper has been submitted to the EPRBIODOSE conference in Leiden (24-28March 2013). Oral presentation and publication in the proceedings.


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TG 10 7Biodosimetry when internal contamination occurs

Key questions:

Can analysis of chromosome aberrations be linked with internaldose evaluation? If Yes, how?

Can dose assessment in teeth (EPR dosimetry) be linked withinternal dose evaluation? If Yes, how?

AimsTo establish the usefulness and limitations of retrospective dosimetryin cases of internal and mixed internal/external exposures

TG chair: K. Rothkamm


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Subtasks

(1) Therapeutic exposures (Natalie Maznik)

(2) Diagnostic radiology (Horst Romm)

(3) Occupational and general public exposures (Paco Barquinero)

To date (actions of WG7 and WG10/TG7):

- Meeting between members of the two groups

- Collection of cases (unpublished + published cases) where biodosimetry

techniques where applied after high intakes of radionuclides- More than 60 publications were identified

- Sharing of relevant unpublished case reports and papers

- Agreed spreadsheet format for collecting relevant case details

TG 10.7 Biodosimetry when internal contamination occurs


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Future tasks (2013)


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TG6: Training course on uncertainty evaluation:

Topics: basic statistics; modelling; low dose specifics; multidisciplinary research inretrospective dosimetry. Proposed venue: in Oxford (HPA).

TG6: Intercomparison on uncertainty estimate methods

TG5: EURADOS report on WG10 activities

Future tasks

Documents

WG10 Progress Report