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Alkali Halide Microstructured Optical Fiber for X-Ray DetectionMicrostructured 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.
Document ID
20160005925
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
DeHaven, S. L.
(NASA Langley Research Center Hampton, VA, United States)
Wincheski, R. A.
(NASA Langley Research Center Hampton, VA, United States)
Albin, S.
(Norfolk State Univ. VA, United States)
Date Acquired
May 6, 2016
Publication Date
July 20, 2014
Subject Category
Optics
Report/Patent Number
NF1676L-19566
Meeting Information
Meeting: Quantitaive Nondestructive Evaluation (QNDE) Review Conference
Location: Boise, ID
Country: United States
Start Date: July 20, 2014
End Date: July 25, 2014
Sponsors: Iowa State Univ.
Funding Number(s)
WBS: WBS 284848.02.04.07.01
Distribution Limits
Public
Copyright
Public Use Permitted.
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