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Disentangling High Strength Copolymer Aramid Fibers to Enable the Determination of Their Mechanical Properties

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Anthracene Fibers Grown in a Microstructured Optical Fiber for X-ray Detection.

Stanton DeHaven¹, Russell Wincheski², Sacharia Albin³

¹NASA Langley Research Center, Hampton, VA 23681, USA. stanton.l.dehaven@nasa.gov.

Materials (Basel, Switzerland)

|August 10, 2017

Summary

Single crystal anthracene fibers grown in a quartz matrix function as efficient X-ray detectors. This novel optical fiber achieved 12%-16% X-ray detection efficiency.

Keywords:

growth from melt optical fiber devices organic compounds scintillating materials

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Area of Science:

Materials Science
Optoelectronics
Crystallography

Background:

Optical fibers offer unique platforms for novel detector development.
Anthracene is a promising organic scintillator material for radiation detection.

Purpose of the Study:

To develop a multicore optical fiber using anthracene single crystals for X-ray detection.
To characterize the grown anthracene fibers and evaluate their performance as X-ray detectors.

Main Methods:

Modified Bridgman-Stockbarger technique for melt-grown anthracene single crystal fibers.
Characterization using spectrophotometry, Raman spectroscopy, and X-ray diffraction.
X-ray detection efficiency measurements.

Main Results:

Successfully grew high-purity anthracene fibers with a crystal structure comparable to conventionally grown anthracene.
Demonstrated the feasibility of using anthracene fibers within a microstructured quartz matrix for X-ray detection.
Achieved a detection efficiency of 12%-16% for X-rays in the 10-40 keV energy range.

Conclusions:

The developed anthracene fiber optical fiber is a viable candidate for X-ray detection applications.
Material purity and fiber processing significantly influence detector performance.
Further optimization of fiber growth and matrix integration could enhance detection efficiency.