Development of tracking detectors based on capillaries with liquid scintillator

Capillaries with a liquid scintillator used for high resolution tracking detectors have been investigated. The highest scintillation efficiency, 1.5 times higher than that of a standard polystyrene scintillator, has been attained for the solution of 1-methylnaphthalene with pyrasoline type dye MDP....
Ausführliche Beschreibung

Capillaries with a liquid scintillator used for high resolution tracking detectors have been investigated. The highest scintillation efficiency, 1.5 times higher than that of a standard polystyrene scintillator, has been attained for the solution of 1-methylnaphthalene with pyrasoline type dye MDP. The time properties of this liquid scintillator and locality of light emission have been studied. Light attenuations in quartz capillaries of different diameters have been measured. For the optimal concentration of MDP the attenuation lengths for capillaries of 30 and 60 μm in diameter were 41 cm and 53 cm, respectively. For high resolution tracking detectors capillaries with a liquid scintillator are quite competitive with plastic fibres. Ausführliche Beschreibung