A detection system with broad angular acceptance for particle identification and angular distribution measurements

P Carnelli,A Arazi,J O F Niello,O A Capurro,M A Cardona,Ezequiel De Barbara,J M Figueira,D Hojman,G V Marti,Diego Martinez Heimann,A E Negri,A J Pacheco

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment（2013）

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摘要

A new detection system for time-optimized heavy-ion angular distribution measurements has been designed and constructed. This device is composed by an ionization chamber with a segmented-grid anode and three position-sensitive silicon detectors. This particular arrangement allows identifying reaction products emitted within a 30° wide angular range with better than 1° angular resolution. As a demonstration of its capabilities, angular distributions of the elastic scattering cross-section and the production of alpha particles in the 7Li+27Al system, at an energy above the Coulomb barrier, are presented.

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关键词

Ionization chamber,Position-sensitive detector,Angular distribution,Particle identification,Straggling,7Li+27Al

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