Journal
MEASUREMENT SCIENCE AND TECHNOLOGY
Volume 19, Issue 12, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-0233/19/12/125304
Keywords
thermographic phosphor; thermometry; temperature; laser-induced phosphorescence; blue emission; fast emission; lifetime; spectral ratio; phosphorescence
Funding
- CECOST (Center of Excellence in Combustion Science and Technology) through the Swedish Foundation for Strategic Research
- SSF
- Swedish National Energy Administration
- STEM
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Blue emitting phosphors are investigated and reported for possible use in thermometry. Currently reported thermographic phosphors in general have the drawback of long emission lifetimes obstructing the possibility to time gate for background discrimination. An additional problem is that many thermographic phosphors have emission in the red spectral region, making them vulnerable for black body radiation at high temperatures. This work reports the temperature sensitivity for nine phosphors considered suitable for accurate temperature measurements in harsh conditions both in single points and in two dimensions (2D).
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