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Sensing of thermal history using thermoluminescent microparticles

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6 Author(s)
Mah, M.L. ; Dept. of Electr. & Comput. Eng., Univ. of Minnesota, Minneapolis, MN, USA ; Manfred, M.E. ; Kim, S.S. ; Prokic, M.
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The thermal history of a material with initially filled trap states has been probed using the thermoluminescence of microparticle sensors. Mg2SiO4:Tb,Co particles with two thermoluminescence peaks have been heated using microheaters over a 230degC to 310degC range for durations of less than 200 ms. The effect of maximum temperature during excitation on the intensity ratio of the peaks is compared with first-order kinetics theory and shown to match within an average error of 4.4%.

Published in:

Optical MEMS and Nanophotonics, 2009 IEEE/LEOS International Conference on

Date of Conference:

17-20 Aug. 2009