Description
A scintillation detector with two-dimensional position resolution of a few mm and
Silicon-Photo-Multiplier (SiPM), usable for large area trigger applications with
few readout channels, is presented.
Position resolution in one direction is achieved by combining two trapezoidal
shaped plastic scintillators to form one rectangular shaped scintillator rod. Each
trapezoid in a rod is optically insulated against the other. The amount of light
produced by incoming particles is proportional to their path length in the
trapezoid and thus position dependent. The position resolution along the
scintillator rod is determined by the propagation time of light. In both trapezoids
the scintillation light is collected by wavelength shifting fibers (WLS-fibers) and
guided to SiPMs, where the light output is detected. The SiPM of each trapezoid
is located on opposite sites of the scintillator rod. This detector is designed for
large area applications with only few readout channels, whereby areas of a square
meter are achieved by combining several scintillator rods.
In this talk we present results of measurements on the performance of this new kind
of two-dimensional spatially resolving trapezoidal scintillator detector.
Author
Mr
Alexander Ruschke
(LMU-Munich)
Co-authors
Mr
Johannes Grossmann
(LMU-Munich)
Prof.
Otmar Biebel
(LMU-Munich)
Dr
Ralf Hertenberger
(Ludwig-Maximilians-Univ. Muenchen (DE))
Mr
Ralph Mueller
(LMU-Munich)
