LASSA: a large area silicon strip array for isotopic identification of charged particles

A new high resolution, charged particle detector array, LASSA, has been dev eloped. LASSA consists of nine individual telescopes that each utilizes a S i-CsI(Tl) stack to provide isotopic identification of fragments (1 less tha n or equal to Z less than or equal to 8) with good angular resolution over a wide dynamic range in energy. The energy range covered is E/A = 2.4-140, MeV for protons and E/A = 4.8-335 Mev for O-16 ions. The front portion of e ach telescope is comprised of a 65 mum Si(IP) strip detector backed by a 50 0 mum Si(IP) strip detector. This second detector provides position informa tion in two dimensions. Behind the second silicon detector is a cluster of four 6 cm thick CsI(Tl) crystals, each read-out by a photodiode. The design , construction, and performance characteristics of this detector telescope are described. (C) 2001 Elsevier Science B.V. All rights reserved.