Phototransferred Thermoluminescence

• Autore: Chithambo Makaiko L
• Pubblicazione: Bristol : , : Institute of Physics Publishing, , 2024; ©2024
• Edizione: 1st ed.
• Descrizione fisica: 1 online resource (197 pages)
• Soggetto topico: Thermoluminescence; Thermally stimulated currents
• Nota di contenuto: Intro -- < -- named-book-part-body& -- #62 -- < -- p& -- #62 -- If thermoluminescence (TL) is the proverbial nut, then it is fair to say it has been hammered to pieces. Surprisingly, phototransferred thermoluminescence (PTTL) has been spared the same over-exuberant treatment. Thermoluminescence is a method for studying point defects in insulators and appears under controlled heating of an irradiated material. Changes in electron trapping defects and luminescence sites can readily be monitored in temperature-wavelength-intensi -- Acknowledgements -- Author biography -- Makaiko L Chithambo -- Chapter Introduction -- 1.1 Phototransferred thermoluminescence -- 1.2 Thermoluminescence -- 1.3 Models of thermoluminescence -- 1.3.1 The tutorial one-trap one-recombination-centre approximation -- 1.3.2 Beyond the instructive: multiple localised states -- 1.4 Calculational methods -- 1.4.1 First order kinetics -- 1.4.2 Second order kinetics -- 1.4.3 Other descriptions of thermoluminescence processes -- 1.5 Defects and disorder in solids -- 1.5.1 Defect pair model -- 1.6 Non-radiative transitions -- 1.6.1 Intra-band transitions -- 1.6.2 Configurational coordinate model -- 1.7 Overview -- References -- Chapter Experimental methods -- 2.1 Introduction -- 2.2 Conventional thermoluminescence: BeO as an exemplar -- 2.2.1 Glow curve features -- 2.2.2 Glow curve resolution by thermal cleaning -- 2.2.3 Reproducibility -- 2.3 Preparatory measurements for PTTL -- 2.3.1 Active glow peaks -- 2.3.2 Phototransfer due to 'deeper' electron traps -- 2.3.3 Fading -- 2.4 Identification of donor and acceptor electron traps by pulse annealing -- 2.4.1 Active glow peaks -- 2.4.2 Quiescent glow peaks -- 2.5 Key steps for PTTL measurement -- References -- Chapter Analytical methods -- 3.1 Introduction -- 3.2 Kinetics model. ; 3.2.1 Two electron traps and one recombination centre -- 3.3 Phenomenological model -- 3.3.1 Compartmental analysis -- 3.3.2 System of one acceptor multiple donors -- 3.4 Vector fields -- 3.5 Simulation -- 3.6 Stability -- 3.7 Quantifying the role of donor electron traps -- 3.8 Influence of stimulation temperature on PTTL intensity -- 3.8.1 Thermal assistance and thermal quenching -- 3.9 Definition of PTTL -- 3.10 Summary -- References -- Chapter Synthetic materials -- 4.1 Synthetic quartz -- 4.1.1 Introduction -- 4.1.2 Conventional thermoluminescence -- 4.1.3 Properties of PTTL -- 4.2 Annealed synthetic quartz -- 4.2.1 Conventional thermoluminescence -- 4.2.2 Properties of PTTL -- 4.2.3 Pulse annealing -- 4.2.4 Influence of heating rate on PTTL intensity -- 4.3 α-Al2O3:C -- 4.3.1 Introduction -- 4.3.2 Glow curve structure -- 4.3.3 Properties of PTTL -- 4.3.4 Phenomenological model of PTTL -- 4.3.5 Effect of thermal quenching on PTTL peak I -- 4.4 BeO -- 4.4.1 Introduction -- 4.4.2 Conventional thermoluminescence -- 4.4.3 Preparatory tests for PTTL -- 4.4.4 Identifying donors and acceptors by pulse annealing -- 4.4.5 Thermally transferred luminescence -- 4.4.6 Time-response profiles -- 4.4.7 Analysis of PTTL time-response profiles -- 4.4.8 Vector fields -- 4.4.9 Theoretical modelling -- 4.4.10 Mechanisms -- 4.5 Al2O3:Cr -- 4.5.1 Introduction -- 4.5.2 Glow curve -- 4.5.3 Tests for PTTL -- 4.5.4 Pulse annealing -- 4.5.5 Influence of illumination time on PTTL -- 4.5.6 Properties of PTTL from deep electron traps -- 4.5.7 Analysis of PTTL time-response profiles -- 4.5.8 Mechanisms -- 4.6 Al2O3:C,Mg -- 4.6.1 Introduction -- 4.6.2 Spectral emission features -- 4.6.3 Glow curve -- 4.6.4 Tests preparatory to recording of PTTL -- 4.6.5 Pulse annealing -- 4.6.6 PTTL time-response profiles -- 4.6.7 Influence of stimulation temperature on PTTL intensity. ; 4.6.8 Phototransfer from deep electron traps -- 4.6.9 The analysis of PTTL time-response profiles -- 4.6.10 Mechanisms -- 4.7 Summary -- References -- Chapter Natural materials -- 5.1 Quartz -- 5.1.1 Introduction -- 5.1.2 Crystalline structure -- 5.1.3 Glow curve -- 5.1.4 Pulse annealing -- 5.1.5 A qualitative assessment of PTTL time-response profiles -- 5.1.6 Mathematical analysis -- 5.1.7 Competition effects -- 5.1.8 Summary -- 5.2 Tanzanite -- 5.2.1 Introduction -- 5.2.2 Glow curve -- 5.2.3 Identification of electron traps as donors and acceptors -- 5.2.4 Fading -- 5.2.5 Time-response profiles -- 5.2.6 Mathematical analysis of time-response profiles -- 5.2.7 Competition effects -- 5.2.8 Summary -- 5.3 CaF2 -- 5.3.1 Introduction -- 5.3.2 Glow curve -- 5.3.3 Pulse annealing -- 5.3.4 PTTL time-response profiles -- 5.3.5 Deep electron traps -- 5.3.6 Influence of illumination temperature on PTTL -- 5.3.7 Role of UV illumination in PTTL from CaF2 -- 5.3.8 Time-response profiles -- 5.3.9 Stability of donor-acceptor and electron-hole systems -- 5.3.10 Mechanisms -- 5.3.11 Summary -- 5.4 Calcite -- 5.4.1 Introduction -- 5.4.2 Glow curve -- 5.4.3 Preparatory measurements for PTTL -- 5.4.4 Qualitative association of acceptors and donors -- 5.4.5 The influence of duration of illumination on PTTL intensity -- 5.4.6 Phototransfer from deep electron traps -- 5.4.7 Influence of illumination temperature on PTTL -- 5.4.8 Analysis of time-response profiles -- 5.4.9 Mechanisms -- 5.4.10 Summary -- References -- Chapter Other materials of interest -- 6.1 Fluorapatite -- 6.2 Obsidian -- 6.3 CaSO4: Mg -- 6.4 KCl -- 6.5 Microcline -- 6.5.1 Introduction -- 6.5.2 Characteristics of TL and PTTL glow curves -- 6.5.3 Step-annealing -- 6.5.4 PTTL time-response profiles -- 6.5.5 Dose response -- 6.6 SrAl2O4:Eu2+,Dy3+ -- 6.6.1 Introduction -- 6.6.2 PTTL of SrAl2O4:Eu2+,Dy3+. ; 6.7 Selected applications -- 6.7.1 Gorilla glass -- 6.7.2 Ge-doped SiO2 optical fibre -- 6.7.3 LiF-TLD 100 -- 6.7.4 Alumina substrates -- 6.8 Summary -- References.
• Sommario/riassunto: The purpose of this book is to present and discuss the theory, measurement and analysis of phototransferred thermoluminescence, a method for studying point defects in insulators.
• Titolo autorizzato: Phototransferred Thermoluminescence
• ISBN: 9780750345484; 0750345489
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9911009385003321
• Lo trovi qui: Univ. Federico II
• Serie: IOP Ebooks Series