| Zugriffsnummer | 28064 |
| Dokumenttyp | Konferenzartikel in Zeitschrift |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Concept of a novel fast neutron imaging detector based on THGEM for fan-beam tomography applications |
| Autor(in); Institution |
Cortesi, M.; Paul Scherrer Institut (PSI), Villigen, SWITZERLAND
Zboray, R.; Paul Scherrer Institut (PSI), Villigen, SWITZERLAND
Adams, R.; Paul Scherrer Institut (PSI), Villigen, SWITZERLAND; Swiss Federal Institute of Technology (ETH), Zürich, SWITZERLAND
Dangendorf, Volker; 6.5, Neutronenstrahlung, PTB-Braunschweig
Prasser, H.-M.; Paul Scherrer Institut (PSI), Villigen, SWITZERLAND; Swiss Federal Institute of Technology (ETH), Zürich, SWITZERLAND
|
| Quelle/Jahr | Journal of Instrumentation: 7 (2012), 1 - 11 |
| Artikelnummer | C02056 |
| Availability | [online only] |
| ISSN | 1748-0221 |
| DOI | |
| Verlag | London: IOP Publ. |
| Konferenzangaben | 2nd International Workshop on Fast Neutron Detectors and Applications, Ein Gedi, 06-11, November 2011, Israel |
| Freie Schlagworte | Micro pattern gaseous detectors ; Neutron detectors ; Neutron radiography |
| Zusammenfassung | The conceptual design and operational principle of a novel high-efficiency, fast neutron imaging detector based on THGEM, intended for future fan-beam transmission tomography applications, is described. We report on a feasibility study based on theoretical modeling and computer simulations of a possible detector configuration prototype. In particular we discuss results regarding the optimization of detector geometry, estimation of its general performance, and expected imaging quality: it has been estimated that detection efficiency of around 5-8% can be achieved for 2.5MeV neutrons; spatial resolution is around one millimeter with no substantial degradation due to scattering effects. The foreseen applications of the imaging system are neutron tomography in non-destructive testing for the nuclear energy industry, including examination of spent nuclear fuel bundles, detection of explosives or drugs, as well as investigation of thermal hydraulics phenomena (e.g., two-phase flow, heat transfer, phase change, coolant dynamics, and liquid metal flow). |
| Kostenfreier Zugang | Open Access Hybrid |