| Zugriffsnummer | 11531 |
| Dokumenttyp | Bericht |
| Sprache | Englisch |
| Titel | Calibration of personal and area dosimeters in high-energy photon fields |
| Autor(in); Institution |
Büermann, Ludwig; 6.21, Dosimetrie der Röntgenstrahlung, PTB-Braunschweig
Guldbakke, Sigmund; 6.41, Neutronenfluenz, PTB-Braunschweig
Kramer, Hans-Michael; 6.21, Dosimetrie der Röntgenstrahlung, PTB-Braunschweig
|
| Quelle/Jahr | (1999), 23 S. |
| Schriftenreihe | PTB-Bericht PTB-Dos-32 |
| Herausgeber(in) |
Physikalisch-Technische Bundesanstalt
|
| ISSN | 0172-7095 |
| ISBN | 3-89701-285-5 |
| Berichtsnummer | PTB-Dos-32 |
| Verlag | Bremerhaven: Wirtschaftsverl. NW |
| Freie Schlagworte | photon reference fields ; calibration procedure ; personal and area dosemeters |
| Zusammenfassung | This is the final report for the EUROMET project No. 250. The project started in May 1991 and was finished in December 1997. It was coordinated by the Physikalisch-Technische Bundesanstalt (PTB). The aim of the project was to provide photon reference radiation fields with energies above 3 MeV suitable for instrument calibration to a great number of research laboratories in order to strengthen cooperation in this field. Two photon sources, an almost monoenergetic 4,4 MeV and a 6-7 MeV field, were established at the accelerator facility of the PTB for use as reference radiations for calibration purposes and have been adopted in the International Standard ISO 4037. The spectral distributions of the photon fluence were measured in the reference radiation fields with a HPGe detector and the air kerma was determined with an ionisation chamber. Calibration procedures for the phantom-related ICRU operational quantities were developed and numerous calibrations of personal and area dosimeters in terms of air kerma free in air and ICRU operational quantities were performed. The results of the investigations provide a great number of experimental data for the response of radiation protection dosimeters which are frequently used in high-energy photon fields. Das Projekt hatte das Ziel, einen breiten Anwenderkreis Photonen-Referenzstrahlungsfelder mit Energien oberhalb von 3 MeV für die Kalibrierung von Strahlenschutzdosimetern zur Verfügung zu stellen, um die Zusammenarbeit auf diesem Gebiet zu stärken. An den Beschleunigeranlagen der PTB wurden für diesen Zweck zwei Photonen-Referenzstrahlungsfelder für Kali-brierungen etabliert und zwar ein nahezu monoenergetisches 4,4 MeV- und ein 6-7 MeV-Feld, die in die internationale Norm ISO 4037 Eingang gefunden haben. |
| Rechteinformation | 1999, Physikalisch-Technische Bundesanstalt |