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Construction and Performance Test of Prototype Parallel Plate Avalanche Counters at RAON
Charles Akers,이광복,김영진,김은희,권영관,이효상,문전영,박진형,류민상,신택수,Satou Yoshiteru 한국물리학회 2017 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.70 No.7
Two prototype position sensitive parallel plate avalanche counters (PPACs) have been fabricated at the Rare Isotope Science Project (RISP). Both detectors have active areas of 10 × 10 cm2 and utilize a stripped electrode structure, together with a delay line readout, to extract position information. Testing was conducted with an 241Am source, and 2-dimensional position information was obtained. A position resolution of 0.55 mm full width at half maximum (FWHM), together with a position linearity of ±55 μm over a 67-mm detection range, were measured. A time resolution of 450 ps (FWHM) was also measured.