Simulations and preliminary results from the SIFTER (scintillating fiber telescope for energetic radiation) beam test apparatus

1998 IEEE Nuclear Science Symposium Conference Record. 1998 IEEE Nuclear Science Symposium and Medical Imaging Conference (Cat. No.98CH36255) Pub Date : 1998-11-08 DOI:10.1109/NSSMIC.1998.775234

R. Kippen, G. Pendleton, R. Mallozzi, G. Richardson, P. Hink, W. Binns, M. Israel, K. Rielage, J. Buckley, G. Fishman, T. Parnell, M. Christl, R. Wilson, T. Koshut

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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 (/spl sim/1 mm/sup 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/spl times/10 cm covered with a thin tantalum foil converter. This apparatus has been tested with high-energy photons (/spl sim/0.5-1.6 GeV) at the Thomas Jefferson National Accelerator Laboratory Hall B tagged gamma-ray facility. We report on the preliminary beam test results, concentrating on comparisons with detailed Monte Carlo simulations of the instrument performance, including track reconstruction, angular resolution and detection efficiency.

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高能辐射闪烁光纤望远镜(SIFTER)光束测试装置的模拟与初步结果

闪烁光纤高能辐射望远镜(SIFTER)是一种用于高能(E>10 MeV)伽玛射线天文学的大面积仪器概念。它利用了细(/spl sim/1 mm/sup 2/)塑料闪烁光纤技术在对跟踪器/量热计望远镜中的应用。在我们正在进行的SIFTER研究中，我们开发了一种小型测试设备，由12个光纤平面组成，每个光纤平面的潜在有效面积为10cm /spl倍/ 10cm，上面覆盖着薄钽箔转换器。该装置已在托马斯·杰斐逊国家加速器实验室B厅标记伽马射线设备上用高能光子(/spl sim/0.5-1.6 GeV)进行了测试。我们报告了初步的波束测试结果，重点比较了仪器性能的详细蒙特卡罗模拟，包括轨道重建，角分辨率和检测效率。

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1998 IEEE Nuclear Science Symposium Conference Record. 1998 IEEE Nuclear Science Symposium and Medical Imaging Conference (Cat. No.98CH36255)

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