| Zugriffsnummer | 23722 |
| Dokumenttyp | Konferenzartikel in Zeitschrift |
| Sprache | Englisch |
| Titel | Low-afterglow, high-refractive-index liquid scintillators for fast neutron spectrometry and imaging applications |
| Autor(in); Institution |
Lauck, Ronald; 6.5, Neutronenstrahlung, PTB-Braunschweig
Brandis, M.; Sorec, Yavne, ISRAEL
Bromberger, Benjamin; 6.5, Neutronenstrahlung, PTB-Braunschweig
Dangendorf, Volker; 6.5, Neutronenstrahlung, PTB-Braunschweig
Goldberg, Mark B.; 6.5, Neutronenstrahlung, PTB-Braunschweig; Sorec, Yavne, ISRAEL
Mor, Ian; Sorec, Yavne, ISRAEL
Tittelmeier, Kai; 6.5, Neutronenstrahlung, PTB-Braunschweig
Vartsky, D.; Sorec, Yavne, ISRAEL
|
| Quelle/Jahr | IEEE Transactions on Nuclear Science: 56 (2009), 3,2, 989 - 993 |
| ISSN | 0018-9499 |
| DOI | |
| Verlag | New York, NY: IEEE |
| Konferenzangaben | Symposium on Radiation Measurements and Applications, SORMA WEST 2008, Berkeley, California, 02-05, June, 2008, USA |
| Zusammenfassung | For ion and neutron spectrometry and imaging applications at a high intensity pulsed laser facility, fast liquid scintillators with very low afterglow are required. Furthermore, neutron imaging with fiber (or liquid-core) capillary arrays calls for scintillation materials with high refractive index. To this end, we have examined various combinations of established mixtures of fluors and solvents, that were enriched alternatively with nitrogen or oxygen. Dissolved molecular oxygen is known to be a highly effective quenching agent, that efficiently suppresses the population of the triplet states in the fluor, which are primarily responsible for the afterglow. For measuring the glow curves of scintillators, we have employed the time-correlated single photon counting (TCSPC) technique, characterized by high dynamic range of several orders of magnitude in light intensity. In this paper we outline the application for the fast scintillators, briefly present the scintillation mechanism in liquids, describe our specific TCSPC method and discuss the results. |
Zitierung
Lauck, R., Brandis, M., Bromberger, B., Dangendorf, V., Goldberg, M. B., Mor, I., Tittelmeier, K., & Vartsky, D. (2009). Low-afterglow, high-refractive-index liquid scintillators for fast neutron spectrometry and imaging applications. IEEE Transactions on Nuclear Science, 56(3,2), 989–993. https://doi.org/10.1109/tns.2008.2009449