Karlsruhe 2024 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
T: Fachverband Teilchenphysik
T 6: Methods in astroparticle physics 1
T 6.7: Vortrag
Montag, 4. März 2024, 17:30–17:45, Geb. 20.30: 2.067
Development of a Bi-solvent Liquid Scintillator with Slow Light Emission — •Hans Steiger1,2, M. Böhles2, M. R. Stock1, U. Fahrendholz1, M. Lu1, L. Oberauer1, J. Firsching1, M. Eisenhuth2, and M. Wurm2 — 1Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany — 2Johannes Gutenberg University Mainz, Cluster of Excellence PRISMA+, Staudingerweg 9, 55128 Mainz, Germany
One of the most promising approaches for the next generation of neutrino experiments is the realization of large hybrid Cherenkov/scintillation detectors made possible by recent innovations in photodetection technology and liquid scintillator chemistry. The development of a potentially suitable future detector liquid with particularly slow light emission is discussed in the present talk. This cocktail is compared with respect to its fundamental characteristics (scintillation efficiency, transparency, and time profile of light emission) with liquid scintillators currently used in large-scale neutrino detectors. In addition, the optimization of the admixture of wavelength shifters for a scintillator with particularly high light emission is presented. Furthermore, the pulse-shape discrimination capabilities of the novel medium was studied using a pulsed particle accelerator driven neutron source. Beyond that, purification methods based on column chromatography and fractional vacuum distillation for the co-solvent DIN (Diisopropylnaphthalene) are discussed. This work is supported by the Clusters of Excellence PRISMA+ and ORIGINS and the Collaborative Research Center 1258.
Keywords: Slow Liquid Scintillator; Novel Scintillation Media; Scintillation/Cherenkov Separation; Detector Development