Mysteries of LiF TLD response following high ionization density irradiation: Glow curve shapes, dose response, the unified interaction model and modified track structure theory

2011 ◽  
Vol 46 (12) ◽  
pp. 1342-1348 ◽  
Author(s):  
Y. Horowitz ◽  
E. Fuks ◽  
H. Datz ◽  
L. Oster ◽  
J. Livingstone ◽  
...  
Keyword(s):  
Dose Response ◽  
Glow Curve ◽  
Interaction Model ◽  
Structure Theory ◽  
Track Structure ◽  
Ionization Density ◽  
High Ionization

scholarly journals Mysteries of LiF TLD response following high ionisation density irradiation: nanodosimetry and track structure theory, dose response and glow curve shapes

2010 ◽  
Vol 145 (4) ◽  
pp. 356-372 ◽  
Author(s):  
Y. Horowitz ◽  
E. Fuks ◽  
H. Datz ◽  
L. Oster ◽  
J. Livingstone ◽  
...  
Keyword(s):  
Dose Response ◽  
Glow Curve ◽  
Structure Theory ◽  
Track Structure

Relative HCP Thermoluminescence and Optical Absorption Efficiencies: The Demise of Track Structure Theory

2020 ◽  
Author(s):  
I Eliyahu ◽  
L Oster
Keyword(s):  
Charged Particle ◽  
Optical Absorption ◽  
Dose Response ◽  
Radiation Effects ◽  
Structure Theory ◽  
Track Structure ◽  
Heavy Charged Particle ◽  
Electron Dose ◽  
Slowing Down ◽  
Particle Irradiation

Abstract The thermoluminescence relative efficiency, ηTST, of LiF:Mg,Ti and LiF:Mg,Cu,P following heavy charged particle irradiation is calculated using track structure theory and compared with experimental measurements. The calculations use both 60Co generated values of secondary electron dose response and values of the dose response at lower photon energies. In both materials there is poor agreement with experiment. Optical absorption relative efficiencies are also in disagreement. For the F band, ηexpt’l/ηTST = 2.0 and 2.6 for He ions and protons, respectively. The values of ηexpt’l/ηTST for the 4.0-eV band, resulted in 0.18 (protons) and <0.12 (He ions). An indication that the 4.0-eV trapping structure is either destroyed or de-populated during the heavy charged particle (HCP) slowing down. The large deviations of ηexpt’l/ηHCP from unity demonstrate that TST, which predicts HCP induced radiation effects from the exclusive action of the released secondary electrons, is woefully inadequate.

Thermoluminescence Properties of Undoped and Dy3+ Doped ZrO2 Nanophosphor Under β-Ray Irradiation

2008 ◽  
Vol 8 (12) ◽  
pp. 6419-6424
Author(s):  
R. A. Rodríguez ◽  
E. De la Rosa ◽  
V. H. Romero ◽  
R. Meléndrez ◽  
P. Salas ◽  
...  
Keyword(s):  
High Temperature ◽  
Dose Response ◽  
Glow Curve ◽  
Synthesis Process ◽  
Intrinsic Defect ◽  
Monoclinic Structure

The thermoluminescence (TL) of undoped and Dy3+ doped ZrO2 nanocrystals under β-ray irradiation is reported. The TL glow curves are the result of the overlapping of four TL peaks produced partly by the intrinsic defect of highly asymmetrical monoclinic structure and partly due to defects produced during the synthesis process. The introduction of dopant ions induces changes in the glow curve due to the enhancement of high temperature peaks intensity. The results show that both undoped and doped ZrO2 nanocrystalline phosphor present good TL efficiency as well as good dose response which qualify them as a potential β-ray dosimeter.

Characterizing the Dosimetric Properties of MEH-PPV Using Thermoluminescence (TL)

2014 ◽  
Vol 1613 ◽  
pp. 127-131 ◽  
Author(s):  
Alejandro Ortiz-Morales ◽  
Ramón Gómez-Aguilar ◽  
Jaime Ortiz-Lopez ◽  
Epifanio Cruz-Zaragoza
Keyword(s):  
Conjugated Polymers ◽  
Kinetic Parameters ◽  
Dose Response ◽  
Glow Curve ◽  
Dose Range ◽  
Complex Structures ◽  
Order Model

ABSTRACTThe thermoluminiscent properties of MEH-PPV and MDMO-PPV conjugated polymers were studied in order to verify if they are suitable for use as TL dosimeter. The dose response that was analyzed cover the wide dose range 0.34-5.44 kGy. The measured glow curves show complex structures which were evaluated with kinetic parameters based on the MO (Mix Order) model together with the CGCD (Computerized Glow Curve Deconvolution) homemade program which is useful to understand the mechanisms responsible for TL emission.

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