FOPI detector for heavy-ion collision experiment at SIS/GSI

Min Sang Ryu, Byungsik Hong, Tae Im Kang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The heavy-ion synchrotron (SIS) at GSI in Germany can accelerate various ions up to 2A GeV. The FOPI detector, the dedicated hadron spectrometer system, has been run in SIS for the last twenty years. The FOPI detector covers almost a full solid angle with two drift chambers and three scintillation counter arrays. The FOPI detector was recently fortified by a new time-of-flight (TOF) detector system that consists of the multi-strip multi-gap resistive plate chambers (MMRPCs). The intrinsic time resolution of the new TOF detector is less than 60 ps, and the improved time measurement in conjunction with the drift chamber information enables us to identify charged hadrons up to an unprecedented high momentum range. For example, the positive kaons can be identified up to 1.1 GeV/c, which is crucial to determining the in-medium effect of strange hadrons in dense matter. In this paper, we introduce the FOPI detector with emphasis on the new TOF system.

Original languageEnglish
Pages (from-to)1605-1608
Number of pages4
JournalJournal of the Korean Physical Society
Volume59
Issue number23
DOIs
Publication statusPublished - 2011 Aug 1

Fingerprint

ionic collisions
detectors
chambers
hadrons
kaons
Germany
scintillation counters
strip
heavy ions
synchrotrons
time measurement
spectrometers
momentum
ions

Keywords

  • FOPI
  • Heavy-ion collision
  • Resistive plate chamber
  • SIS
  • Time of flight

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

FOPI detector for heavy-ion collision experiment at SIS/GSI. / Ryu, Min Sang; Hong, Byungsik; Kang, Tae Im.

In: Journal of the Korean Physical Society, Vol. 59, No. 23, 01.08.2011, p. 1605-1608.

Research output: Contribution to journalArticle

Ryu, Min Sang ; Hong, Byungsik ; Kang, Tae Im. / FOPI detector for heavy-ion collision experiment at SIS/GSI. In: Journal of the Korean Physical Society. 2011 ; Vol. 59, No. 23. pp. 1605-1608.
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