| Zugriffsnummer | 11578 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | An active personal dosemeter / spectrometer for neutrons |
| Autor(in); Institution |
Luszik-Bhadra, Marlies; 6.32, Neutronendosimetrie, PTB-Braunschweig
Matzke, Manfred; 6.42, Neutronenmessverfahren, PTB-Braunschweig
Dietz, Ernst; 6.41, Neutronenfluenz, PTB-Braunschweig
Guldbakke, Sigmund; 6.41, Neutronenfluenz, PTB-Braunschweig
Hecker, Oskar; 6.42, Neutronenmessverfahren, PTB-Braunschweig
Sosaat, Wolfgang; 6.41, Neutronenfluenz, PTB-Braunschweig
Wiegel, Burkhard; 6.42, Neutronenmessverfahren, PTB-Braunschweig
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| Quelle/Jahr | Radiation Protection Dosimetry: 84 (1999), 1-4, 375 - 380 |
| ISSN | 0144-8420 |
| Verlag | Ashford, Kent: Nuclear Technology Publ. |
| Freie Schlagworte | neutron radiation ; personal dosimetry ; neutron spectrometry ; silicon-diodes |
| Zusammenfassung | A prototype of a highly sensitive active personal neutron dosemeter has been developed. It consists of a stack of four silicon detectors sandwiched between layers acting as neutron converters, moderators and absorbers. Its response to quasi-monoenergetic neutrons with energies up to 45 MeV and photons with energies up to 7 MeV has been measured and/or calculated for different angles of incident radiation. The personal dose equivalent determined from the readings obtained in some fields with broad energy distributions deviates by less than 30% from the reference values, both for normal incidence and incidence at 60° to the normal. The detection threshold is about 3 μSv for fast neutrons, 1 μSv for intermediate neutrons and 0.007 μSv for thermal neutrons, even in mixed fields with a photon dose higher by a factor of 20. In addition, the evaluation procedures described give spectral and directional information about the field. |
| Rechteinformation | 1999, Nuclear Technology Publishing |