| Zugriffsnummer | 11114 |
| Dokumenttyp | Konferenzartikel in Zeitschrift |
| Sprache | Englisch |
| Titel | An unfolding method for directional spectrometers |
| Autor(in); Institution |
Reginatto, Marcel; 6.5, Neutronenstrahlung, PTB-Braunschweig
Luszik-Bhadra, Marlies; 6.5, Neutronenstrahlung, PTB-Braunschweig
d'Errico, F.; Università di Pisa, Dipartimento di Ingegneria Meccanica, Nucleare e della Produzione, Pisa, ITALY; Yale University School of Medicine, Department of Therapeutic Radiology, New Haven, USA
|
| Quelle/Jahr | Advances in nuclear particle dosimetry for radiation protection and medicine : Ninth Symposium on Neutron Dosimetry, Aula Conference Centre, Delft University of Technology, Delft, The Netherlands 28 September to 3 October 2003. Radiation Protection Dosimetry: 110 (2004), 1-4, 539 - 543 |
| Herausgeber(in) |
Zoetelief, J.; Delft University of Technology, Interfaculty Reactor Institute, Delft, THE NETHERLANDS
|
| ISSN | 0144-8420 |
| ISBN | 0-19-856713-8 |
| Verlag | Oxford [u.a.]: Oxford University Press |
| Konferenzangaben | Ninth Symposium on Neutron Dosimetry, Delft, 28, September - 3, October 2003, The Netherlands |
| Freie Schlagworte | Neutron ; Spectrometry ; Unfolding ; Maximum entropy |
| Zusammenfassung | The development of new spectrometers that are sensitive to the directional distribution of neutrons requires new unfolding methods that can determine the distribution of the neutron fluence as a function of energy and angle. Such information is needed to compute non-isotropic dosimetric quantities (e.g. personal dose equivalent and effective dose). We describe an unfolding method that applies the maximum entropy principle to this problem. It maximises the relative entropy, defined as the information-theory entropy of the distribution of the neutron fluence relative to a distribution that encodes prior knowledge, subject to constraints imposed by the measurements. We provide examples of the applicability of the method using data from two directional spectrometers of different design that have been developed in the context of EVIDOS, a project concerning mixed neutron-photon field analysis in the nuclear industry. |
