A beam vertex detector using scintillating fibers

B. B. Back, R. R. Betts, A. Gillitzer, W. F. Henning, D. J. Hofman, V. Nanal, A. M. Wuosmaa, R. Ganz, B. Holzman, D. McLeod, W. R. Binns, J. W. Epstein

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


A beam vertex detector system based on 200 μm square scintillating fibers has been built and utilized in an experiment with 6,8, and 10.8 GeV/u 197Au beams with intensities of up to 3 × 105 particles per 1.6s spill at the AGS at Brookhaven National Laboratory. The position of each beam particle traversing the target which subsequently caused a trigger was determined with a precision of σ ≃ 150 μm, independent of beam intensity. The detection efficiency exceeded 99% per detector layer. Information on radiation damage with relativistic heavy ions was obtained.

Original languageEnglish
Pages (from-to)191-199
Number of pages9
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number2-3
StatePublished - 1 Aug 1998
Externally publishedYes


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