Scintillating fibers and their use in the Cosmic Ray Isotope Spectrometer (CRIS) on the Advanced Composition Explorer (ACE)

Journal Article · Mon Nov 09 00:00:00 EST 1998 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.56988· OSTI ID:21199324

Binns, W R; Dowkontt, P F; Epstein, J E; Hink, P L; Klarmann, J; Lijowski, M; Olevitch, M A ^[1]; Christian, E R; Rosenvinge, T T. von ^[2]; Cook, W R; Cummings, A C; Kecman, B; Leske, R A; Mewaldt, R A; Stone, E C; Thayer, M R ^[3]; Dougherty, B L; Wiedenbeck, M E ^[4]

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1. Washington University, Campus Box 1105, 1 Brookings Drive, St. Louis, Missouri 63130 (United States)
2. Goddard Space Flight Center, Code 661, Greenbelt, Maryland 20771 (United States)
3. California Institute of Technology, Mail Code 220-47, Pasadena, California 91125 (United States)
4. Jet Propulsion Laboratory, Pasadena, California 91109 (United States)

The Cosmic Ray Isotope Spectrometer (CRIS) experiment was launched aboard the NASA Advanced Composition Explorer satellite on August 25, 1997. The experimental objective of CRIS is to measure the isotopic composition of galactic cosmic ray nuclei for elements with charge 3<Z<28 over the energy range {approx}50-500 MeV/nuc. The instrument consists of a scintillating fiber hodoscope to determine particle trajectory, and four stacks of silicon wafers for multiple dE/dx and E{sub tot} measurements. This instrument is the first to use scintillating fibers in space. The CRIS instrument has a large geometrical factor of {approx}250 cm{sup 2} sr. The spatial resolution obtained by the fiber hodoscope is {approx}100 {mu}m. The mass resolution achieved is {approx}0.12 amu for Carbon and 0.30 amu for the heaviest isotopes measured. Mass histograms of selected isotopes are presented.

• OSTI ID: 21199324
• Journal Information: AIP Conference Proceedings, Vol. 450, Issue 1; Conference: SCIFI97: 3. conference on scintillating and fiber detectors, Notre Dame, IN (United States), 2-6 Nov 1997; Other Information: DOI: 10.1063/1.56988; (c) 1998 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
COSMIC NUCLEI
COSMIC RAY DETECTION
EXPLORER SATELLITES
HODOSCOPES
ISOTOPE RATIO
MASS RESOLUTION
MEV RANGE
MULTIPARTICLE SPECTROMETERS
OPTICAL FIBERS
PARTICLE TRACKS
SI SEMICONDUCTOR DETECTORS
SOLID SCINTILLATION DETECTORS
SPATIAL RESOLUTION