6533b82cfe1ef96bd128ecb4

RESEARCH PRODUCT

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

P. DrexlerConcettina SfientiJ. MüllerC. SzyszkaP. GülkerT. KolarA. G. DenigM. ChristmannM. BirothW. LauthM. LaußS. AulenbacherPatrick AchenbachS. CaiazzaS. ŠIrcaS. ŠIrcaM. MihovilovičM. MihovilovičLuca DoriaO. CorellHarald MerkelS. StengelJ. GeimerM. MauchB. S. SchlimmeS. LunkenheimerS. VestrickP. BrandD. MarkusI. BeltschikowM. LittichMarkus BallM. Lupberger

subject

PhysicsNuclear and High Energy PhysicsRange (particle radiation)Physics - Instrumentation and DetectorsPhysics::Instrumentation and Detectorsbusiness.industryFOS: Physical sciencesInstrumentation and Detectors (physics.ins-det)ElectronOpticsSilicon photomultiplierCathode rayPhysics::Accelerator PhysicsFiberNuclear Experiment (nucl-ex)businessNuclear ExperimentInstrumentationLight dark matterMicrotronBeam (structure)

description

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.

yearjournalcountryeditionlanguage
2021-01-15Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
https://doi.org/10.1016/j.nima.2021.165617