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HK: Fachverband Physik der Hadronen und Kerne
HK 58: Instrumentation
HK 58.6: Talk
Friday, March 23, 2012, 12:30–12:45, P 3
Development of Inorganic Scintillating Fibers Made of LuAG:Ce and LYSO:Ce*) — •Stefan Diehl1, Didier Perrodin2, and Rainer Novotny1 — 12nd Physics Institute, Uni Giessen, Germany — 2FiberCryst S. A. S, Lyon, France - and for the HP2-WP21 collaboration
Similar to the field of application of fibers based on plastic scintillators, there is a strong interest to replace the materials by inorganic crystals. They will provide significantly higher light yield, an efficient interaction with electromagnetic probes due to the content of high-Z elements, a wider range of emission wavelength to adapt to the appropriate photo sensors and remain more resistant to radiation damage for long-term applications. Based on the micro-pulling down technique the collaboration has focused on the optimisation of the technology and the quality inspection of fibres based on LuAG:Ce and LYSO:Ce. There has been significant progress in the growing procedure, the optimisation of the crucibles and the growing efficiency. LYSO:Ce as an very radiation hard and bright scintillator material appears to be very attractive for many applications in particular due to its very short radiation length. Fibres with 1mm diameter and more than 100cm length have been successfully produced and show a very promising performance. The talk will discuss in detail measurements of the achieved light output and homogeneity. In addition, several prototypes for detector applications will illustrate the field of application ranging from hadron- and high-energy physics to medical applications. *)The work is supported by EC-Research Infrastruct. Act. FP7:HP2, WP21