Results 81 to 90 of about 252 (114)
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Radiation Protection Dosimetry, 2015
The influence of various annealing treatments on radioluminescent (RL) and thermoluminescent (TL) spectra of LiF:Mg,Cu,Si and LiF:Mg,Cu,P was investigated. The TL and RL emission bands for LiF:Mg,Cu,P are not the same; however, the emission band peaking at ∼383 nm is predominant in the TL and RL emission for LiF:Mg,Cu,Si. With the increase in annealing
K, Tang, H, Fan, H, Cui, H, Zhu, Z, Liu
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The influence of various annealing treatments on radioluminescent (RL) and thermoluminescent (TL) spectra of LiF:Mg,Cu,Si and LiF:Mg,Cu,P was investigated. The TL and RL emission bands for LiF:Mg,Cu,P are not the same; however, the emission band peaking at ∼383 nm is predominant in the TL and RL emission for LiF:Mg,Cu,Si. With the increase in annealing
K, Tang, H, Fan, H, Cui, H, Zhu, Z, Liu
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Lithium Fluoride: From LiF:Mg,Ti to LiF:Mg,Cu,P
Radiation Protection Dosimetry, 2002Differences and similarities between LiF-based LiF:Mg,Ti and LiF:Mg,Cu,P are discussed, with respect to their dosimetric properties--sensitivity, non-linearity of dose response and heavy charged particle efficiency, as related to the concentration and the individual role of the Mg, Ti, Cu and P dopants.
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UV-induced bleaching of deep traps in Harshaw TLD LiF:Mg,Cu,P and LiF:Mg,Ti
Radiation Protection Dosimetry, 2011The effects of UV-induced bleaching of deep traps on Harshaw thermoluminescent (TL) LiF:Mg,Cu,P and LiF:Mg,Ti materials were investigated. During a normal heating cycle, LiF:Mg,Cu,P is limited to a maximum temperature of 240 °C. LiF:Mg,Ti can be read to higher temperatures; however, encapsulation in polytetrafluoroethylene limits the maximum readout ...
L, Benevides +6 more
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Comment on the Identification of Z Centres in LiF:Mg and LiF:Mg, Ti Single Crystals
physica status solidi (b), 1984AbstractThe Z‐centre hypothesis in LiF:Mg and LiF:Mg, Ti systems is re‐investigated. On the basis of available optical absorption measurements, summarizing the already emerged contradictions of this hypothesis, and by comparing the characteristic properties of the Z centres in LiF with those in other alkali halides it is established that the Z centre ...
A. Watterich +3 more
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Medical Physics, 1997
This study compared the relative effectiveness of TLD crystals LiF:Mg,Ti (TLD‐100) and LiF:Mg,Cu,P (TLD‐700H) for clinical dosimetry, focusing on reproducibility, linearity, and energy response. Experimental results indicated that TLD‐700H was superior to TLD‐100 with regard to reproducibility, lack of supralinearity, and the absence of variation in TL
C K, Harris +3 more
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This study compared the relative effectiveness of TLD crystals LiF:Mg,Ti (TLD‐100) and LiF:Mg,Cu,P (TLD‐700H) for clinical dosimetry, focusing on reproducibility, linearity, and energy response. Experimental results indicated that TLD‐700H was superior to TLD‐100 with regard to reproducibility, lack of supralinearity, and the absence of variation in TL
C K, Harris +3 more
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LiF:Mg,Ti Versus LiF:Mg,Cu,P: The Competition Heats Up
Radiation Protection Dosimetry, 1993Abstract Current knowledge concerning the dosimetric characteristics of LiF:Mg,Cu,P and LiF:Mg,Ti is reviewed, including glow curve structure, response to annealing procedures, trap conversion processes, dose response, tissue-equivalence, residual signal and others.
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Sensitivity changes of LiF:Mg,Ti and LiF:Mg,Cu,P TL detectors after proton exposures
Radiation Measurements, 2015Abstract 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 +3 more
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Recent Improvements in LiF:Mg,Ti and LiF:Mg,Cu,P Based Environmental Dosimetry
Radiation Protection Dosimetry, 1996Considerable 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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Time-resolved spectroscopy of LiF:Mg,Cu,P
Radiation Protection Dosimetry, 2006Time-resolved spectroscopy measurements of LiF:Mg,Cu,P luminescence are presented to obtain a better understanding of the emission characteristics of this material. The intensities and decay of the emission bands were studied as a function of annealing temperature and ionising radiation (gamma) dose.
V K, Mathur +2 more
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Optical absorption in LiF, LiF:Mg, LiF:Mg,Cu,P irradiated with high gamma and beta doses
Radiation Measurements, 2017Abstract 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 +3 more
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