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EVIDOS Report Summary

Project ID: FIKR-CT-2001-00175
Funded under: FP5-EAECTP C
Country: Germany

Advanced personal dosemeters and area monitors for mixed radiation and results on their dosimetric and technical performance

Results were obtained from a large number of dosimetric equipment including area monitors (Berthold LB 6411, Harwell Leake N91, Studsvik 2202, Wendi-2, SSI Sievert), active electronic personal dosemeters (Aloka PDM-313, PTB DOS-2002, Saphymo Saphydose n, Synodys DMC 2000 GN, Thermo Electron EPD-N, Thermo Electron EPD-N2) and other personal dosemeters (BTI PND and BDT, DIMNP HpSLAB, NRPB PADC, PSI CR-39, PSI DIS-N, Local TLD devices). These include commercial devices and instruments developed by the partners outside or within the project. The dosimetric and technical performance of the different instruments was published in the open literature.

The area monitors yielded responses between 0.5 and 1.5, with a slight under-response in harder spectra. Despite the small underestimation in terms of H*(10), these instruments do provide generally conservative estimates of H(p)(10) or E.

For the personal dosemeters, a significant spread of the results was observed. While the best results were obtained in hard spectra, many dosemeters over-responded significantly in soft spectra. The new active (electronic) personal dosemeters (APDs) do not generally give better results than passive ones in terms of the spread of responses - at least for the workplace fields investigated. APDs show, however, a much lower detection limit.

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Bundesallee 100
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