6533b830fe1ef96bd1297b2f

RESEARCH PRODUCT

Characterisation and calibration of a scintillating fibre detector with > 4000 multi-anode photomultiplier channels

M. BirothP. GülkerAnselm EsserPatrick AchenbachC. Ayerbe GayosoJ. Pochodzalla

subject

PhysicsNuclear and High Energy PhysicsPhotomultiplierPhysics - Instrumentation and DetectorsSpectrometerbusiness.industryPhysics::Instrumentation and DetectorsDetectorAnodeFibre ChannelOpticsCalibrationScintillating fibrebusinessNuclear ExperimentInstrumentationMicrotron

description

In the Kaos spectrometer at the Mainz Microtron a high-resolution coordinate detector for high-energy particles is operated. It consists of scintillating fibres with diameters of 4000 multi-anode photomultiplier channels. It is one of the most modern focal-plane detectors for magnetic spectrometers world-wide. To correct variations in the detection efficiency, caused by the different gains and the different optical transmittances, a fully automated off-line calibration procedure has been developed. The process includes the positioning of a radioisotope source alongside the detector plane and the automated acquisition and analysis of the detector signals. It was possible to characterise and calibrate each individual fibre channel with a low degree of human interaction.

yearjournalcountryeditionlanguage
2012-06-14
10.1016/j.nima.2011.11.060http://arxiv.org/abs/1206.3146