| Zugriffsnummer | 29881 |
| Dokumenttyp | Konferenzartikel in Zeitschrift |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | PTB intercomparisons of passive H*(10) area dosemeters for environmental monitoring |
| Autor(in); Institution |
Dombrowski, Harald; 6.3, Strahlenschutzdosimetrie, PTB-Braunschweig
Neumaier, Stefan; 6.3, Strahlenschutzdosimetrie, PTB-Braunschweig
|
| Quelle/Jahr | Radiation Protection Dosimetry: 161 (2014), 1/4, 53 - 57 |
| ISSN | 0144-8420 |
| DOI | |
| Verlag | Oxford: Oxford Univ. Press |
| Konferenzangaben | NEUDOS12 (Neutron and Ion Dosimetry Symposium), Aix-en-Provence, 03-07, June, 2013, France |
| Zusammenfassung | For measuring the phantom related quantity ambient dose equivalent, H*(10), various passive photon and neutron dosemeters were newly developed, which are used in particular for the monitoring of nuclear facilities in the radiation field of the natural ambient radiation. Since 2005, PTB has performed intercomparisons to study fundamental properties and the long-term behavior of area dosemeters under real environmental conditions, i.e. the accuracy of photon and neutron measurements performed in the complex natural radiation field. From autumn 2005 to autumn 2007 approximately 650 photon and neutron dosemeters were exposed on three reference measurement sites for environmental radiation and in a PTB irradiation facility. Another intercomparison was held from 2011 to 2012. Participants were measuring bodies from four European countries including Germany. The goal was, on the one hand, quality assurance for existing passive dosemeters and measurement procedures and, on the other hand, the experimental investigation whether the requirements of appropriate standards and guidelines are met in practical use. The intercomparisons provide a fundamental contribution to quality assurance by ensuring the traceability of area dose measurements to primary standards of PTB. The intercomparisons revealed the fact that, above all, the instability of passive measuring systems could lead to an insufficient reproducibility of the results. In practice this can lead to the problems that a decision is not possible whether permissible limits are met at a special nuclear facility or not. |
