Results from the SIFTER (Scintillating Fiber Telescope for Energetic Radiation) beam test apparatus
IEEE Transactions on Nuclear Science（1999）
Abstract
The Scintillating Fiber Telescope for Energetic Radiation (SIFTER) is a large-area instrument concept for high-energy (E > 10 MeV) gamma-ray astronomy. It takes advantage of the technology of fine (similar to 1 mm(2)) plastic scintillating fibers in the context of a pair tracker/calorimeter telescope. In our on-going SIFTER research, we have developed a small test apparatus, consisting of 12 fiber planes, each with a potential active area of 10 cm x 10 cm covered with a thin tantalum foil converter. This apparatus was tested in July, 1998 with high-energy photons (similar to 0.5-1.6 GeV) at the Thomas Jefferson National Accelerator Laboratory Hall B tagged gamma-ray facility. We report on results of the beam test, concentrating on comparisons with detailed Monte Carlo simulations of the instrument performance, including track reconstruction, angular resolution and detection efficiency.
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Key words
Monte Carlo methods,astronomical telescopes,gamma-ray astronomy,gamma-ray detection,position sensitive particle detectors,solid scintillation detectors,test facilities,0.5 to 1.6 GeV,10 cm,Monte Carlo simulations,SIFTER beam test apparatus,Scintillating Fiber Telescope for Energetic Radiation,Ta,angular resolution,detection efficiency,high-energy gamma-ray astronomy,large-area instrument,plastic scintillating fibers,track reconstruction
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