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The detector system of the BigSol spectrometer at Texas A & M |
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| Authors: | M. Barbui S. Pesente D. Fabris S. Moretto M. Cinausero V. Rizzi G. Chubarian S. Kowalski J.B. Natowitz L. Qin J. Wang A. Wieloch |
| Affiliation: | a Dipartimento di Fisica University of Padova and INFN Sezione di Padova, Via Marzolo 8, I-35131 Padova, Italy b INFN, Laboratori Nazionali di Legnaro, via dell’Università 2, I-35020 Legnaro (Padova), Italy c Dipartimento di Meccanica dell’Università di Brescia and INFN Sezione di Pavia, Italy d Cyclotron Institute, Texas A & M University, College Station, TX 77843, United States e Jagiellonian University, M Smoluchowski Institute of Physics, PL-30059, Krakow, Poland |
| Abstract: | The detector system used at the first focus of the BigSol superconducting solenoid beam line at the Texas A & M superconducting cyclotron is presented. The system is composed of a position sensitive PPAC followed by an ionization chamber (IC) with a YAP(Ce) array in its back plane. The position sensitivity of the PPAC as well the energy resolution of the IC is investigated as a function of the counting rate. Pulse height, pulse height resolution and time resolution of the YAP(Ce) crystals are studied for a variety of heavy ion beams ranging from 20Ne to 197Au at energies from 15 AMeV to 40 AMeV. The pulse shape discrimination method using a Flash ADC is also explored, in order to identify decay products (alpha particles and electron/gamma) from the fragments implanted in the scintillator. |
| Keywords: | 29.40.Mc 29.40.Gx |
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