Results 171 to 180 of about 56,219 (213)

Comparison of some TLD dosimetry systems

The British Journal of Radiology, 1973
The application of thermoluminescent dosimetry has become more and more common in clinical practice. Several dosimetry systems have been introduced on the market lately. Four of such TLD (thermoluminescent dosimetry) systems have been installed for some time in our hospital, so that a comparison could be made between them.
A, Hasman, R T, Groothedde
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Multivariate analysis of TLD orientation effects

Medical Physics, 1980
The effect of orientation on extruded thermoluminescent dosimeters has been investigated. TLD's placed on the surface and within a phantom were exposed separately to five diagnostic beam qualities and to 60Co γ rays. The resulting data were subjected to analysis of variance and examined for significant correlations.
B R, Archer, S C, Bushong, J I, Thornby
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Commercial optical fibre as TLD material

Radiation Protection Dosimetry, 2006
This work presents a study of commercial SiO2 optical fibre thermoluminescence (TL) properties as part of the efforts within the Dosimetric Application Project at the Physics Institute of the University of Mexico to develop new radiation detection materials and technologies.
G, Espinosa, J I, Golzarri, J, Bogard, J, García-Macedo   +3 more
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Environmental monitoring with TLD

Nuclear Instruments and Methods, 1972
Abstract CaSO 4 :Dy has advantages for environmental TLD: It can easily be prepared, is ≈30 times as sensitive as LiF:Mg,Ti, and exhibits considerably less fading than previously used CaF 2 :Dy.
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Influence of the Mn-dopant on the TLD-system CaF2 : Dy(TLD-200)

Nuclear Instruments and Methods, 1980
Abstract Systematic investigations (ESR, IR, electron excited optical emission, glow curve analysis) of the centers involved in the TL-process of commercially available CaF 2 : Dy (TLD-200) and crystals grown by a modified Bridgman-Stockbarger method doped with Dy and Mn are described and the results are discussed.
Norbert Vana, Stefan Eder, Ernst Unfried, Hannes Aiginger   +3 more
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Implementing Web Classification for TLDs

2015 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology (WI-IAT), 2015
On the market there are many commercial web classification services and a few publicly available web directory services. Unfortunately they mostly focus on English-speaking web sites, making them unsuitable for other languages in terms of classification reliability and coverage.
L Deri, M Martinelli, M Serrecchia, L Sideri, S Prignoli, D Sartiano   +5 more
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A TLD System for Environmental Monitoring

Radiation Protection Dosimetry, 1996
A multi-element dosemeter system for environmental monitoring has been designed. It consists of three solid sintered CaSO 4 :Dy (or CaSO 4 :Tm) properly filtered, and of one low Z, MgB 4 O 7 :Dy,Na TL detectors. This TL dosemeter system is shown to meet all specified criteria and provides the accurate dosimetry required for environmental monitoring ...
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Self-shielding factors for TLD-600 and TLD-100 in an isotropic flux of thermal neutrons

Physics in Medicine & Biology, 1976
Monte Carlo calculations have been carried out to determine the absorption probability (and consequently the self-shielding factor) for an isotropic flux of neutrons impinging on different sized cylindrical samples of TLD-100 and TLD-600.
Y S, Horowitz, A, Dubi, B B, Shahar
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PITL and PTTL characteristics of TLD-100 and TLD-700 TL detectors

2006
The phenomenon of thermoluminescence when excited by light (photostimulated thermoluminescence) has two aspects, photoinduced thermoluminescence (PITL) and phototransfered thermoluminescence (PTTL). PTTL refers to thermoluminescence (TL) induced by light as a result of photo transfer of charge carriers from one or more traps to other traps.
Ranogajec, Ferencne, Krpan, Katarina
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Transmitted Information of TLD Elements

Japanese Journal of Applied Physics, 1980
The performance of four types of very small thermoluminescence dosimeter (TLD) elements is evaluated by means of the entropy method which is considered to be the evaluation on the basis of the precision of measurements. Evaluation for four types of TLD elements is ranked by the amount of transmitted information (TI).
Suguru Uchida, Hiroshi Inatsu, Hiroshi Fujita   +2 more
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