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Title: Alkali halide microstructured optical fiber for X-ray detection

Microstructured optical fibers containing alkali halide scintillation materials of CsI(Na), CsI(Tl), and NaI(Tl) are presented. The scintillation materials are grown inside the microstructured fibers using a modified Bridgman-Stockbarger technique. The x-ray photon counts of these fibers, with and without an aluminum film coating are compared to the output of a collimated CdTe solid state detector over an energy range from 10 to 40 keV. The photon count results show significant variations in the fiber output based on the materials. The alkali halide fiber output can exceed that of the CdTe detector, dependent upon photon counter efficiency and fiber configuration. The results and associated materials difference are discussed.
Authors:
;  [1] ;  [2]
  1. NASA Langley Research Center, Hampton, VA 23681 (United States)
  2. Norfolk State University, Norfolk, VA 23504 (United States)
Publication Date:
OSTI Identifier:
22391256
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1650; Journal Issue: 1; Conference: 41. Annual Review of Progress in Quantitative Nondestructive Evaluation, Boise, ID (United States), 20-25 Jul 2014; Other Information: (c) 2015 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALUMINIUM; CADMIUM TELLURIDES; CDTE SEMICONDUCTOR DETECTORS; CESIUM IODIDES; COMPARATIVE EVALUATIONS; MICROSTRUCTURE; OPTICAL FIBERS; PHOTONS; QUANTUM EFFICIENCY; SCINTILLATIONS; SODIUM IODIDES; SOLIDS; THIN FILMS; X-RAY DETECTION