| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1829324 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2008 | 8 Pages |
The performance of scintillating fibre detectors was studied with electrons at the spectrometer facility of the Mainz microtron MAMI, as well as in a 12C beam of 2 A GeV energy and in a beam of different particle species at GSI. Multi-anode photomultipliers were used to read out one or more bundles of 128 fibres each in different geometries. For electrons a time resolution of FWHM ∼∼ 1 ns was measured in a single detector plane with a detection efficiency ε>99%ε>99%. A time resolution of 310 ps (FWHM) between two planes of fibres was achieved for carbon ions, leading to a FWHM ∼220ps for a single detector. The hit position residual was measured with a width of FWHM=0.27mm. The variation in the measured energy deposition was ΔE/E=15ΔE/E=15–20% (FWHM) for carbon ions. In addition, the energy response to p/π+/dp/π+/d particles was studied. Based on the good detector performance fibre hodoscopes will be constructed for the Kaos/A1 spectrometer at MAMI and for the HypHI experiment at GSI.
