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Adamczewski-Musch, J.; Akishin, P.; Becker, K.-H.; Bendarouach, J.; Deveaux, C.; Dürr, M.; Eschke, J.; Förtsch, J.; Heep, J.; Höhne, C.; Ivanishchev, D.; Kampert, K.-H.; Kochenda, L.; Kravtsov, P.; Kres, I.; Lebedev, S.; Lebedeva, E.; Linev, S.; Mahmoud, T.; Malaev, M.; Michel, J.; Miftakhov, N.; Niebur, W.; Otto, J.-H.; Ovcharenko, E.; Patel, V.; Pauly, C.; Pfeifer, D.; Riabov, Y.; Roshchin, E.; Samsonov, V.; Schetinin, V.; Tarasenkova, O.; Traxler, M.; Tyts, D.; Vznuzdaev, M.; Weber, A.A.; Zumbruch, P.
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 02/2020, Volume: 952Journal Article
Wavelength-shifting (WLS) films of p-terphenyl have been applied by means of dip-coating on the entrance window of the H12700 multi anode photomultiplier (MAPMT) in order to enhance the UV sensitivity. Using coated and uncoated MAPMTs in a CBM RICH testbox in a proton testbeam at the COSY accelerator, an enhancement of the number of hits per ring of 15%–20% depending on cuts has been observed. Due to new fast readout electronics of the RICH detector for the CBM/ HADES experiments, the time response of p-terphenyl has been measured to show a decay constant of 2.35 ns. This compares well with time-resolved fluorescence measurements of the films. •Sensitivity of H12700 MAPMTs extended to UV wavelengths with p-terphenyl films.•Application to Ring Imaging Cherenkov (RICH) Detectors.•Increase in number of hits per ring due to wavelength-shifting films by 15%–20%.•Fast decay time (2.35 ns) measured with CBM/HADES RICH readout electronics.•Good agreement between CBM/HADES RICH and time-resolved fluorescence measurements.
