Naslov
Comparative study of LiF:Mg, Cu, Na, Si and Li2B4O7:Cu, Ag, P TL detectors.

Autori
Miljanić, Saveta ; Ranogajec-Komor, Maria ; Knežević, Željka ; Prokić, Mirjana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts / - New Haven (CT), 2004, 126-126

Skup
14th International Solid State Dosimetry Conference

Mjesto i datum
New Haven (CT), Sjedinjene Američke Države, 27.06.2004. - 02.07.2004

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
TL detectors; energy dependence; tissue equivalent detectors

Sažetak
Recently, two new types of “ tissue equivalent” thermoluminescent detectors (TLDs) have aroused attention: LiF:Mg, Cu, Na, Si and Li2B4O7:Cu, Ag, P. In this work the characteristics of both detectors were compared with the characteristics of the well known type LiF:Mg, Ti detector, TLD-100. The following properties were investigated: the glow curve structures, relative sensitivity, batch homogeneity and uniformity, detection threshold, reproducibility of the response, linearity in the wide dose range and fading. Also, the energy dependence for medium and low energy X-rays was determined in the range of mean energies between 33 and 116 keV. The results confirmed “ tissue equivalency” of both new types in the investigated range of photon energies. LiF:Mg, Cu, Na, Si detector has very high sensitivity (about 75 times higher than that of TLD-100) and is convenient for use in a very low range of doses. Li2B4O7:Cu, Ag, P detector shows some improvements in comparison with the previously prepared types of lithium borate. The most important is the 5 times higher sensitivity than that of TLD-100. This detector is also very promising, especially in medical dosimetry.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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