Method for determining neutron spectra and device for carrying out the method

US6423972B1 · kind B1 · utility

Assignee

• GSF-Forshungszentrum für Umwelt und Gesundheit, GmbH · DE

Inventors

• Georg Fehrenbacher · Hersbruck, DE
• Eric Cordes · Isny im Allgäu, DE
• Markus Sprunck · Borgo San Lazzaro, DE
• Wolfgang Wahl · Schliersee, DE

Key dates

• Filing date: Nov 8, 1999
• Grant date: Jul 23, 2002
• Expiry date: Nov 8, 2019

Classification

• Technology area (CPC G): Physics
• CPC primary: G01T3/08
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

In a method and apparatus for determining neutron spectra using at least two neutron detectors which provide integral counting rates from which the spectrum of a neutron radiation can be approximated, and which consist each of a semiconductor diode, a converter layer, an inactive layer and an active layer. The various layers of each detector are different from those of the other neutron detector and so selected that the sensitivity functions of the two neutron detectors are different. An artificial neutral network is provided which is especially trained and to which the counting rates of the detectors are supplied to be processed for obtaining the neutron spectrum.