Modeling and Assessment of Long Afterglow Decay Curves
Multiple exponential equations have been successfully fitted to experimental long afterglow decay curve data for some phosphor materials by previous researchers. The calculated decay constants in such equations are used to assess the phosphorescence characteristics of an object. This study generates...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/102524 |
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| _version_ | 1832548396189089792 |
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| author | Chi-Yang Tsai Jeng-Wen Lin Yih-Ping Huang Yung-Chieh Huang |
| author_facet | Chi-Yang Tsai Jeng-Wen Lin Yih-Ping Huang Yung-Chieh Huang |
| author_sort | Chi-Yang Tsai |
| collection | DOAJ |
| description | Multiple exponential equations have been successfully fitted to experimental long afterglow decay curve data for some phosphor materials by previous researchers. The calculated decay constants in such equations are used to assess the phosphorescence characteristics of an object. This study generates decay constants from experimental test data and from existing literature for comparison. It shows that the decay constants of an object may not be invariant and that they are dependent on phosphor material, temperature, irradiation intensity, sample thickness, and phosphor density for samples. In addition, the use of different numbers of exponential components in interpretation leads to different numerical results for decay constants. The relationship between the calculated decay constants and the afterglow characteristics of an object is studied and discussed in this paper. The appearance of the luminescence intensity is less correlated to the decay constants than to the time-invariant constants in an equation. |
| format | Article |
| id | doaj-art-5d0a4a4a40774ab784c41f1a995ad41d |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-5d0a4a4a40774ab784c41f1a995ad41d2025-02-03T06:14:12ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/102524102524Modeling and Assessment of Long Afterglow Decay CurvesChi-Yang Tsai0Jeng-Wen Lin1Yih-Ping Huang2Yung-Chieh Huang3Graduate Institute of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, TaiwanDepartment of Civil Engineering, Feng Chia University, Taichung 407, TaiwanDepartment of Civil Engineering, Feng Chia University, Taichung 407, TaiwanDepartment of Pediatrics, Taichung Veterans General Hospital, Taichung 407, TaiwanMultiple exponential equations have been successfully fitted to experimental long afterglow decay curve data for some phosphor materials by previous researchers. The calculated decay constants in such equations are used to assess the phosphorescence characteristics of an object. This study generates decay constants from experimental test data and from existing literature for comparison. It shows that the decay constants of an object may not be invariant and that they are dependent on phosphor material, temperature, irradiation intensity, sample thickness, and phosphor density for samples. In addition, the use of different numbers of exponential components in interpretation leads to different numerical results for decay constants. The relationship between the calculated decay constants and the afterglow characteristics of an object is studied and discussed in this paper. The appearance of the luminescence intensity is less correlated to the decay constants than to the time-invariant constants in an equation.http://dx.doi.org/10.1155/2014/102524 |
| spellingShingle | Chi-Yang Tsai Jeng-Wen Lin Yih-Ping Huang Yung-Chieh Huang Modeling and Assessment of Long Afterglow Decay Curves The Scientific World Journal |
| title | Modeling and Assessment of Long Afterglow Decay Curves |
| title_full | Modeling and Assessment of Long Afterglow Decay Curves |
| title_fullStr | Modeling and Assessment of Long Afterglow Decay Curves |
| title_full_unstemmed | Modeling and Assessment of Long Afterglow Decay Curves |
| title_short | Modeling and Assessment of Long Afterglow Decay Curves |
| title_sort | modeling and assessment of long afterglow decay curves |
| url | http://dx.doi.org/10.1155/2014/102524 |
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