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

  • B. Davin
  • , R. T. De Souza
  • , R. Yanez
  • , Y. Larochelle
  • , R. Alfaro
  • , H. S. Xu
  • , A. Alexander
  • , K. Bastin
  • , L. Beaulieu
  • , J. Dorsett
  • , G. Fleener
  • , L. Gelovani
  • , T. Lefort
  • , J. Poehlman
  • , R. J. Charity
  • , L. G. Sobotka
  • , J. Elson
  • , A. Wagner
  • , T. X. Liu
  • , X. D. Liu
  • W. G. Lynch, L. Morris, R. Shomin, W. P. Tan, M. B. Tsang, G. Verde, J. Yurkon

Research output: Contribution to journalArticlepeer-review

96 Scopus citations

Abstract

A new high resolution, charged particle detector array, LASSA, has been developed. LASSA consists of nine individual telescopes that each utilizes a Si-Si-CsI(Tl) stack to provide isotopic identification of fragments (1 ≤ Z ≤ 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 16O ions. The front portion of each telescope is comprised of a 65 μm Si(IP) strip detector backed by a 500 μm Si(IP) strip detector. This second detector provides position information 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.

Original languageEnglish
Pages (from-to)302-318
Number of pages17
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume473
Issue number3
DOIs
StatePublished - Nov 11 2001

Keywords

  • Charged particle detection
  • Fragment isotopic resolution
  • Silicon detection
  • Silicon-strip detection

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