Compact fast rich detector using a solid radiator: Principle and first experimental results

Abstract The principle and first experimental results for a compact fast RICH detector using a solid radiator (NaF crystal) are presented. This detector can be very thin (≅ 4 cm) and presents a small percentage of radiation length. First experimental results for β = 0.82 and β = 1 particles at different incident angles indicate a good determination of the ring diameter. This type of particle identifier may be quite useful in compact medium energy experiments.