PL423088A1 - Method for measuring optically stimulated luminescence - Google Patents
Method for measuring optically stimulated luminescenceInfo
- Publication number
- PL423088A1 PL423088A1 PL423088A PL42308817A PL423088A1 PL 423088 A1 PL423088 A1 PL 423088A1 PL 423088 A PL423088 A PL 423088A PL 42308817 A PL42308817 A PL 42308817A PL 423088 A1 PL423088 A1 PL 423088A1
- Authority
- PL
- Poland
- Prior art keywords
- modulation
- sin
- detector
- luminescence
- optically stimulated
- Prior art date
Links
Abstract
Sposób pomiaru optycznie stymulowanej luminescencji, polega na tym, że prowadzi się pomiar luminescencji metodą modulacji harmonicznej zmieniając ?(t), natężenie światła stymulacji optycznej według zależności opisanej wzorem: ?(t) = ?B + ?A sin(?t), gdzie ?B i ?A oznaczają odpowiednio natężenie bazowe i amplitudę modulacji, gdzie 0 ? ?A ? ?B, a ? opisuje częstotliwość stymulacji, przy czym odpowiedź luminescencyjną detektora, rejestrowany sygnał OSL, ma zasadniczo postać nieliniowa: L(t) = LB + LA sin(?t - ?L) lecz, w niewielkim zakresie czasowym, gdy względny ubytek nośników z pułapek jest znacznie mniejszy od jedności, przy założeniu, że składowe LB i LA są znacznie wolniej zmienne, niż czynnik harmoniczny, a częstotliwość oraz głębokość modulacji dobiera się stosownie do badanego materiału i detektora OSL, i dokonuje pomiaru podstawowego parametru jakim jest wielkość przesunięcia kątowego ?L pomiędzy dwoma sinusoidami.The method of measuring optically stimulated luminescence is that the luminescence is measured by harmonic modulation by changing? (T), light intensity of optical stimulation according to the formula described by the formula:? (T) =? B +? A sin (? T), where "B and" A are the base current and modulation amplitude, respectively, where 0 ? A? ? B, and? describes the stimulation frequency, with the detector's luminescent response, the recorded OSL signal, essentially non-linear: L (t) = LB + LA sin (? t -? L) but, in a small time range, when the relative loss of carriers from the traps is significantly smaller than one, assuming that the components LB and LA are much slower than the harmonic factor, and the frequency and depth of modulation are selected according to the tested material and the OSL detector, and measures the basic parameter which is the amount of angular shift? L between two sinusoids.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL423088A PL423088A1 (en) | 2017-10-06 | 2017-10-06 | Method for measuring optically stimulated luminescence |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL423088A PL423088A1 (en) | 2017-10-06 | 2017-10-06 | Method for measuring optically stimulated luminescence |
Publications (1)
Publication Number | Publication Date |
---|---|
PL423088A1 true PL423088A1 (en) | 2019-04-08 |
Family
ID=65992112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL423088A PL423088A1 (en) | 2017-10-06 | 2017-10-06 | Method for measuring optically stimulated luminescence |
Country Status (1)
Country | Link |
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PL (1) | PL423088A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998012575A1 (en) * | 1996-09-20 | 1998-03-26 | Board Of Regents Of Oklahoma State University | Method for the fast determination of an unknown absorbed dose of radiation with high sensitivity using optically stimulated luminescence |
US5892234A (en) * | 1995-09-22 | 1999-04-06 | The Board Of Regents Of Oklahoma State University | Method for determining an unknown absorbed dose of radiation using optically stimulated luminescence |
US20130341514A1 (en) * | 2012-06-22 | 2013-12-26 | Landauer, Inc. | Method and apparatus for fast determination of unknown radiation dose |
-
2017
- 2017-10-06 PL PL423088A patent/PL423088A1/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5892234A (en) * | 1995-09-22 | 1999-04-06 | The Board Of Regents Of Oklahoma State University | Method for determining an unknown absorbed dose of radiation using optically stimulated luminescence |
WO1998012575A1 (en) * | 1996-09-20 | 1998-03-26 | Board Of Regents Of Oklahoma State University | Method for the fast determination of an unknown absorbed dose of radiation with high sensitivity using optically stimulated luminescence |
US20130341514A1 (en) * | 2012-06-22 | 2013-12-26 | Landauer, Inc. | Method and apparatus for fast determination of unknown radiation dose |
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