Electron beam studies of light collection in a scintillating counter with embedded fibers

Abstract

The light collection of several fiber configurations embedded in a box-shaped plastic scintillating counter was studied by scanning with minimum ionizing electrons. The light was read out by silicon photomultipliers at both ends. The light yield produced by the 855-MeV beam of the Mainz Microtron showed a strong dependence on the transverse distance from the beam position to the fibers. The observations were modeled by attributing the collection of indirect light inside of the counter and of direct light reaching a fiber to the total light yield. The light collection with fibers was compared to that of a scintillating counter without fibers. These studies were carried out within the development of plastic scintillating detectors as an active veto system for the DarkMESA electron beam-dump experiment that will search for light dark matter particles in the MeV mass range.

arXiv comment13 pages, 7 figures, 2 tables

References in corpus (10)

• The T2K Experiment
• New Fixed-Target Experiments to Search for Dark Gauge Forces
• Construction and Commissioning of the CALICE Analog Hadron Calorimeter Prototype
• Silicon Photomultipliers in Particle and Nuclear Physics
• Performance of Multi-Pixel Photon Counters for the T2K near detectors
• Study of Scintillator Strip with Wavelength Shifting Fiber and Silicon Photomultiplier
• Photoelectron Yields of Scintillation Counters with Embedded Wavelength-Shifting Fibers Read Out With Silicon Photomultipliers
• Search for light dark matter with the MESA accelerator
• The BDX-MINI detector for Light Dark Matter search at JLab
• Test beam studies of the light yield, time and coordinate resolutions of scintillator strips with WLS fibers and SiPM readout