Results 91 to 100 of about 264 (113)

Optical and thermoluminescence properties of LiF:Cu, LiF:Mg,Cu and LiF:Mg,Cu,P single crystals

Radiation Measurements, 1998
Abstract Thermoluminescence properties and optical absorption in the UV-VIS region (1.5–6.5 eV) during linear heating from RT up to 400°C of in-house grown LiF:Mg, LiF:Mg,Cu and LiF:Mg,Cu,P single crystals were investigated. TL glow curve and emission spectrum (not sensitivity) of the LiF:Mg,Cu,P single crystals are the same as for the highly ...
V. Chernov, S. Mironenko, B. Rogalev, A.J.J. Bos, J.Th.M de Haas, A. Delgado   +5 more
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Recent Improvements in LiF:Mg,Ti and LiF:Mg,Cu,P Based Environmental Dosimetry

Radiation Protection Dosimetry, 1996
Considerable work has been devoted in recent years to improve the low dose measurement performance of the traditional LiF:Mg,Ti and the more recent LiF:Mg,Cu,P. Some of the most significant innovations derived from these research activities, such as glow curve analysis for TL evaluation, the clarification of temperature effects in long exposures and ...
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Low temperature radioluminescence of LiF:Mg,Cu,P

Radiation Protection Dosimetry, 2006
Low temperature radioluminescence spectra of LiF, variously co-doped with Mg, Cu and P, show highly unusual temperature dependencies which resemble thermoluminescence data. The signals include intense peaks and a relatively weak continuous background. One peak occurs below 30 K, together with a major peak near 125 K. The signals are highly sensitive to
K, Kurt, V K, Mathur, S W S, McKeever, P D, Townsend, L, Valberg   +4 more
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Glow Curve Analysis of Long-term Stability of LiF:Mg,Cu,P as Compared to LiF:Mg,Ti

Radiation Protection Dosimetry, 1999
Over a six month period, the long-term stability of LiF:Mg,Cu,P (GR-200A, Beijing China) was compared with LiF:Mg,Ti (GR-100, Beijing China). This is of particular interest in applications where there can be considerable variations in the time intervals between TLD preparation, irradiation and readout, such as environmental, accident personal and ...
L. Duggan, T. Kron
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Optical absorption in LiF, LiF:Mg, LiF:Mg,Cu,P irradiated with high gamma and beta doses

Radiation Measurements, 2017
Abstract We examine the optical absorption spectra of a variety of LiF materials, variously doped with Mg, Cu and/or P. Both single crystal LiF (from various sources) and LiF:MCP-N sintered pellets are examined. We follow the growth of the individual absorption bands as a function of high, gamma-photon doses and high, beta-particle doses.
K. Remy, S. Sholom, B. Obryk, S.W.S. McKeever   +3 more
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Sensitivity changes of LiF:Mg,Ti and LiF:Mg,Cu,P TL detectors after proton exposures

Radiation Measurements, 2015
Abstract Two most common types of LiF-based thermoluminescent (TL) detectors LiF:Mg,Ti (natural Li: MTS-N) and LiF:Mg,Cu,P (natural Li: MCP-N) have been studied for sensitivity loss after 60 MeV proton and gamma rays (60Co) doses ranging between 0.5 and 30 Gy.
M. Sądel, P. Bilski, J. Swakoń, M. Rydygier   +3 more
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Thermoluminescence and Color Centers in LiF:Mg

Journal of Applied Physics, 1967
A variety of optical absorption, emission and luminescence excitation spectra have been measured in an attempt to identify the centers involved in the thermoluminescence of commercial LiF:Mg. It is concluded that the principal trapping centers consist of a hole trapped near various groupings of Mg2+ ions and vacancies.
Clifford C. Klick, Esther W. Claffy, Steven G. Gorbics, Frank H. Attix, James H. Schulman, James G. Allard   +5 more
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Role of Impurities in the Thermoluminescence of LiF:Mg,Cu,P

Radiation Protection Dosimetry, 2002
The thermoluminescent properties of lithium fluoride doped with magnesium, copper and phosphorous are reviewed. This material shows specific advantages over LiF (TLD-100) in that is has higher sensitivity, less energy dependence and no supralinear behaviour with dose.
T C, Chen, T G, Stoebe
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Pre- and post-irradiation fading effect for LiF:Mg,Ti and LiF:Mg,Cu,P materials used in routine monitoring

Radiation Protection Dosimetry, 2011
LiF is a well-known thermoluminescent (TL) material used in individual monitoring, and its fading characteristics have been studied for years. In the present study, the fading characteristics (for a period of 150 d) of various commercial LiF materials with different dopants have been evaluated.
E, Carinou, P, Askounis, F, Dimitropoulou, G, Kiranos, H, Kyrgiakou, E, Nirgianaki, E, Papadomarkaki, V, Kamenopoulou   +7 more
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The Annealing Characteristics of LiF:Mg,Ti

Radiation Protection Dosimetry, 1990
New data concerning some of the standard annealing procedures routinely applied to LiF:Mg,Ti, especially the influence of the reproductibility of the annealing temperature profiles on the dosimetric precision, are presented. Based on these investigations, and based on the criterion that the annealing should be carried out at a temperature where the TL ...
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