The detector system of the BigSol spectrometer at Texas A & M

✍ Scribed by M. Barbui; S. Pesente; G. Nebbia; D. Fabris; M. Lunardon; S. Moretto; G. Viesti; M. Cinausero; G. Prete; V. Rizzi; F. Bocci; G. Chubarian; K. Hagel; S. Kowalski; T. Materna; J.B. Natowitz; G. Souliotis; L. Qin; R. Wada; J. Wang; Z. Majka; A. Wieloch

• Book ID: 103862546
• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 661 KB
• Volume: 265
• Category: Article
• ISSN: 0168-583X
• DOI: 10.1016/j.nimb.2007.09.034

✦ Synopsis

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 20 Ne to 197 Au 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.