T. Beier et al., A PROTON TAGGING DETECTOR FOR THE NA48 EXPERIMENT, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 360(1-2), 1995, pp. 390-394
The concept of K-S proton tagging and first prototype test results are
reported from the NA48 experiment. Thin scintillator foils were arran
ged as two staircases intersecting in space. A geometric alignment to
0.4 mrad, a light yield of 300-400 photoelectrons and a time resolutio
n of 70-90 ps with conventional TDCs were achieved. A FADC system oper
ating at 450 megasamples/s performed at 50 ps intrinsic time resolutio
n. Overlapping pulses could be resolved down to 7 ns.