Unraveling Thermoluminescence

Unraveling Thermoluminescence PDF Author: C M Sunta
Publisher: Springer
ISBN: 8132219406
Category : Science
Languages : en
Pages : 205

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Book Description
The book is essentially about the theoretical aspects of thermoluminescence (TL). It is structured and written in a manner which will specially be of interest to the fresh undergraduate students and young researchers planning to take up work in the field of thermoluminescence. It is arranged into seven chapters, starting with the historical growth of the subject of TL and an overview of the luminescence phenomena. A Physical model involving thermally disconnected deep traps is specially described. Using this model expressions are derived for the TL intensity growth curve, the supralinearity factor and the pre-dose sensitization factor. A new factor, called the sensitization factor is introduced which co-relates the supralinearity and the pre-dose sensitization factors. Dealing with the theoretical models of TL, limitations of the general order (GO) kinetics and the mixed order kinetics models are specially brought out. Due to the lacunae of GO model the determination of activation energy becomes subject to error, when GO model is applied to the experimental TL glow curves. Satisfying the quasi-equilibrium (QE) condition is essential for the validity of analytical models of TL. A new method is given to ascertain if QE condition is satisfied in an experimental glow curve. The book assumes a basic knowledge of physics and mathematics at an undergraduate level and takes the reader to the results at the cutting edge of understanding of the subject in an easy to understand manner.

Unraveling Thermoluminescence

Unraveling Thermoluminescence PDF Author: C M Sunta
Publisher: Springer
ISBN: 8132219406
Category : Science
Languages : en
Pages : 205

Get Book Here

Book Description
The book is essentially about the theoretical aspects of thermoluminescence (TL). It is structured and written in a manner which will specially be of interest to the fresh undergraduate students and young researchers planning to take up work in the field of thermoluminescence. It is arranged into seven chapters, starting with the historical growth of the subject of TL and an overview of the luminescence phenomena. A Physical model involving thermally disconnected deep traps is specially described. Using this model expressions are derived for the TL intensity growth curve, the supralinearity factor and the pre-dose sensitization factor. A new factor, called the sensitization factor is introduced which co-relates the supralinearity and the pre-dose sensitization factors. Dealing with the theoretical models of TL, limitations of the general order (GO) kinetics and the mixed order kinetics models are specially brought out. Due to the lacunae of GO model the determination of activation energy becomes subject to error, when GO model is applied to the experimental TL glow curves. Satisfying the quasi-equilibrium (QE) condition is essential for the validity of analytical models of TL. A new method is given to ascertain if QE condition is satisfied in an experimental glow curve. The book assumes a basic knowledge of physics and mathematics at an undergraduate level and takes the reader to the results at the cutting edge of understanding of the subject in an easy to understand manner.

Spectroscopy for Materials Characterization

Spectroscopy for Materials Characterization PDF Author: Simonpietro Agnello
Publisher: John Wiley & Sons
ISBN: 1119698057
Category : Technology & Engineering
Languages : en
Pages : 500

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Book Description
SPECTROSCOPY FOR MATERIALS CHARACTERIZATION Learn foundational and advanced spectroscopy techniques from leading researchers in physics, chemistry, surface science, and nanoscience In Spectroscopy for Materials Characterization, accomplished researcher Simonpietro Agnello delivers a practical and accessible compilation of various spectroscopy techniques taught and used to today. The book offers a wide-ranging approach taught by leading researchers working in physics, chemistry, surface science, and nanoscience. It is ideal for both new students and advanced researchers studying and working with spectroscopy. Topics such as confocal and two photon spectroscopy, as well as infrared absorption and Raman and micro-Raman spectroscopy, are discussed, as are thermally stimulated luminescence and spectroscopic studies of radiation effects on optical materials. Each chapter includes a basic introduction to the theory necessary to understand a specific technique, details about the characteristic instrumental features and apparatuses used, including tips for the appropriate arrangement of a typical experiment, and a reproducible case study that shows the discussed techniques used in a real laboratory. Readers will benefit from the inclusion of: Complete and practical case studies at the conclusion of each chapter to highlight the concepts and techniques discussed in the material Citations of additional resources ideal for further study A thorough introduction to the basic aspects of radiation matter interaction in the visible-ultraviolet range and the fundamentals of absorption and emission A rigorous exploration of time resolved spectroscopy at the nanosecond and femtosecond intervals Perfect for Master and Ph.D. students and researchers in physics, chemistry, engineering, and biology, Spectroscopy for Materials Characterization will also earn a place in the libraries of materials science researchers and students seeking a one-stop reference to basic and advanced spectroscopy techniques.

Reminiscences of a Pahadi Nuclear Scientist

Reminiscences of a Pahadi Nuclear Scientist PDF Author: Dr. Chintamani Sunta
Publisher: Walnut Publication
ISBN:
Category : Biography & Autobiography
Languages : en
Pages : 242

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Book Description
This book will be of interest to many – enthusiasts of Uttarakhand and the Himalayas, those of a scientific bent who might be curious about how pioneering scientists of BARC lived their lives, and also young minds who can learn from him to shine through hardships without fussing. The book also doubles up as a travel book with the varied details he gives about all the places he has travelled across India and the world either for reasons of science or just because he and his wife Kamla had the travel bug! By the end of the book, the readers will have developed a huge respect for the man who could write this book at the age of 90, for his memory, for his perseverance, for his sincerity and his disciplined life. It is a simple life which has achieved what it has, not with sudden luck or prosperity, but slowly and surely one step at a time.

Theory Of Thermoluminescence And Related Phenomena

Theory Of Thermoluminescence And Related Phenomena PDF Author: Reuven Chen
Publisher: World Scientific
ISBN: 9814500313
Category : Science
Languages : en
Pages : 577

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Book Description
In this book, the authors give an up-to-date account of thermoluminescence (TL) and other thermally stimulated phenomena. Although most recent experimental results of TL in different materials are described in some detail, the main emphasis in the present book is on general processes, and the approach is more theoretical. Thus the details of the possible processes which can take place during the excitation of the sample, and during its heating, are carefully analysed. The methods for analysing TL glow curves are critically discussed, and recommendations as to their application are made. Also discussed is the expected behavior of these phenomena as functions of the experimental parameters, for example, dose of excitation. The consequences of the main applications of TL (for example, radiation dosimetry) are also discussed in detail as are the similarities and dissimilarities of other thermally stimulated phenomena, and the simultaneous measurements of the latter and TL.

Thermoluminescence and Thermoluminescent Dosimetry

Thermoluminescence and Thermoluminescent Dosimetry PDF Author: Yigal S. Horowitz
Publisher: CRC Press
ISBN: 1000694631
Category : Science
Languages : en
Pages : 211

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Book Description
First Published in 1984, this set offers a comprehensive insight into thermolumiscence. Carefully compiled and filled with a vast repertoire of notes, diagrams, and references this book serves as a useful reference for radiobiologists and physicists and other practitioners in their respective fields.

Correlation and Chronology of Ore Deposits and Volcanic Rocks

Correlation and Chronology of Ore Deposits and Volcanic Rocks PDF Author: P. E. Damon
Publisher:
ISBN:
Category : Ore deposits
Languages : en
Pages : 266

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Book Description


Proceedings of the National Symposium on Thermoluminescence and Its Applications, Reactor Research Centre, Kalpakkam, Madras, February 12-15, 1975

Proceedings of the National Symposium on Thermoluminescence and Its Applications, Reactor Research Centre, Kalpakkam, Madras, February 12-15, 1975 PDF Author:
Publisher:
ISBN:
Category : Phosphors
Languages : en
Pages : 736

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Book Description


Unraveling Piltdown

Unraveling Piltdown PDF Author: John Evangelist Walsh
Publisher: Random House (NY)
ISBN:
Category : Science
Languages : en
Pages : 320

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Book Description
In 1913 amateur fossil hunter and archaeologist Charles Dawson found in a gravel pit the cranium and jaw of an entirely new species of humanoid, which became known as Piltdown man, which caused headlines worldwide as the missing link between man and ape. In 1952, it was exposed as a hoax. With eight pages of photos, this book is a wonderful detective story, and the first examination the convincingly fingers the perpetrator.

Rare-Earth-Activated Phosphors

Rare-Earth-Activated Phosphors PDF Author: Vikas Dubey
Publisher: Elsevier
ISBN: 0323886051
Category : Science
Languages : en
Pages : 410

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Book Description
Rare-Earth-Activated Phosphors: Chemistry and Applications outlines important fundamentals and properties and explores successful application that address key problems across the sciences. Sections introduce phosphors and luminescence, explore their properties, characteristics, synthesis and degradation and highlight key applications across telecommunications, lighting, electroluminescent devices, (bio-)analytical sensors, bio-imaging set-ups, drug delivery and sustainable energy devices. Drawing on the knowledge of an expert team of contributors, the book provides useful insight into successfully harnessing the properties of rare earth activated phosphors for a range of important applications.Rare-earth nano-phosphors offer an interesting array of characteristics, including sharp emission bands, exceptional optical damage thresholds, low toxicity, high selectivity and stability, and long luminescence lifetimes. Understanding these properties can help researchers effectively manipulate them for a range of important applications. - Provides a good introduction to the useful properties and characteristics of rare earth activated phosphors - Analyzes the use of rare earth activated phosphors for a broad variety of important applications, bridging the gap between theory and application - Encourages further discourse and development for improving the energy-efficiency of devices based on rare earth activated phosphors

Methods and Instrumentations: Results and Recent Developments

Methods and Instrumentations: Results and Recent Developments PDF Author: Arnold S. Marfunin
Publisher: Springer Science & Business Media
ISBN: 3642785263
Category : Science
Languages : en
Pages : 457

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Book Description
All existing introductory reviews of mineralogy are written accord ing to the same algorithm, sometimes called the "Dana System of Mineralogy". Even modern advanced handbooks, which are cer tainly necessary, include basic data on minerals and are essentially descriptive. When basic information on the chemistry, structure, optical and physical properties, distinguished features and para genesis of 200-400 minerals is presented, then there is practically no further space available to include new ideas and concepts based on recent mineral studies. A possible solution to this dilemma would be to present a book beginning where introductory textbooks end for those already famil iar with the elementary concepts. Such a volume would be tailored to specialists in all fields of science and industry, interested in the most recent results in mineralogy. This approach may be called Advanced Mineralogy. Here, an attempt has been made to survey the current possibilities and aims in mineral mater investigations, including the main characteristics of all the methods, the most important problems and topics of mineralogy, and related studies. The individual volumes are composed of short, condensed chap ters. Each chapter presents in a complete, albeit condensed, form specific problems, methods, theories, and directions of investigations, and estimates their importance and strategic position in science and industry.