Investigation of potential laser-induced heating effects when using thermographic phosphors for gas-phase thermometry
Lindén, Johannes LU
; Takada, N.
; Johansson, Bengt
LU
; Richter, Mattias
LU
and Aldén, Marcus
LU
(2009)
In Applied Physics B
96(2-3).
p.237-240
- Abstract
- The spectral emission from thermographic phosphors in free flow and its dependence of laser energy per cross section area (laser fluence [J/cm(2)]) has been investigated. Temperature measurements in gaseous flows using thermographic phosphors require higher laser energy than measurements performed on surfaces, due to lower particle density. A troublesome systematic error associated with high fluences would be introduced if the excitation laser heats the particles. In the presented work, three different types of the thermographic phosphor BaMg2Al10O17:Eu (BAM) are investigated. Spectra of the phosphorescence are achieved for a range of laser fluences. The results show no indications of the laser heating the particles, making further... (More)
- The spectral emission from thermographic phosphors in free flow and its dependence of laser energy per cross section area (laser fluence [J/cm(2)]) has been investigated. Temperature measurements in gaseous flows using thermographic phosphors require higher laser energy than measurements performed on surfaces, due to lower particle density. A troublesome systematic error associated with high fluences would be introduced if the excitation laser heats the particles. In the presented work, three different types of the thermographic phosphor BaMg2Al10O17:Eu (BAM) are investigated. Spectra of the phosphorescence are achieved for a range of laser fluences. The results show no indications of the laser heating the particles, making further development of phosphor thermography in free-flow applications feasible. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1462852
- author
- Lindén, Johannes
LU
; Takada, N.
; Johansson, Bengt
LU
; Richter, Mattias
LU
and Aldén, Marcus
LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Physics B
- volume
- 96
- issue
- 2-3
- pages
- 237 - 240
- publisher
- Springer
- external identifiers
-
- wos:000267885000003
- scopus:67650945025
- ISSN
- 0946-2171
- DOI
- 10.1007/s00340-009-3608-7
- language
- English
- LU publication?
- yes
- id
- 53b53136-f04e-4804-ad95-0b4d63c62acb (old id 1462852)
- date added to LUP
- 2016-04-01 11:41:05
- date last changed
- 2022-04-05 03:19:24
@article{53b53136-f04e-4804-ad95-0b4d63c62acb,
abstract = {{The spectral emission from thermographic phosphors in free flow and its dependence of laser energy per cross section area (laser fluence [J/cm(2)]) has been investigated. Temperature measurements in gaseous flows using thermographic phosphors require higher laser energy than measurements performed on surfaces, due to lower particle density. A troublesome systematic error associated with high fluences would be introduced if the excitation laser heats the particles. In the presented work, three different types of the thermographic phosphor BaMg2Al10O17:Eu (BAM) are investigated. Spectra of the phosphorescence are achieved for a range of laser fluences. The results show no indications of the laser heating the particles, making further development of phosphor thermography in free-flow applications feasible.}},
author = {{Lindén, Johannes and Takada, N. and Johansson, Bengt and Richter, Mattias and Aldén, Marcus}},
issn = {{0946-2171}},
language = {{eng}},
number = {{2-3}},
pages = {{237--240}},
publisher = {{Springer}},
series = {{Applied Physics B}},
title = {{Investigation of potential laser-induced heating effects when using thermographic phosphors for gas-phase thermometry}},
url = {{http://dx.doi.org/10.1007/s00340-009-3608-7}},
doi = {{10.1007/s00340-009-3608-7}},
volume = {{96}},
year = {{2009}},
}