Keywords
Scintillators, transparent ceramics
Abstract
As our understanding of ceramic processing methods for the purpose of fabricating polycrystalline optical materials has increased over the past few decades, the race is on to bring ceramic technology to markets where single crystalline materials have traditionally been used. One such market is scintillators. This Master’s thesis focuses specifically on a class of materials attractive for use as gamma-ray scintillators. These barium based halides can potentially be utilized in applications ranging from ionizing radiation detection in the field to high-energy physics experimentation. Barium bromide iodide and barium chloride single crystals have already showed high light yield, fast scintillation decay, and high energy resolution, all desirable properties for a scintillator. This work attempts to show the likelihood of moving towards polycrystalline scintillators to take advantage of the lower processing temperature, higher manufacturing output, and overall reduced cost. The experiments begin with identifying appropriate sintering conditions for hot pressed ceramics of BaBrI and BaCl2. Possible sources of optical loss in the first phase of hot pressed samples are investigated using a wide range of characterization tools. Preliminary luminescence and scintillation measurements are reported for a translucent sample of BaBrI. Recommendations are made to move toward highly transparent ceramics with scintillation properties approaching those measured in single crystal samples
Notes
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Graduation Date
2013
Semester
Summer
Advisor
Gaume, Romain
Degree
Master of Science in Materials Science and Engineering (M.S.M.S.E.)
College
College of Engineering and Computer Science
Department
Materials Science Engineering
Degree Program
Materials Science and Engineering
Format
application/pdf
Identifier
CFE0005258
URL
http://purl.fcla.edu/fcla/etd/CFE0005258
Language
English
Release Date
February 2014
Length of Campus-only Access
None
Access Status
Masters Thesis (Open Access)
Subjects
Dissertations, Academic -- Engineering and Computer Science, Engineering and Computer Science -- Dissertations, Academic
STARS Citation
Shoulders, William, "Barium Based Halide Scintillator Ceramics For Gamma Ray Detection" (2013). Electronic Theses and Dissertations. 2805.
https://stars.library.ucf.edu/etd/2805