Advantages and disadvantages of luminescence dosimetry

Olko, P.

doi:10.1016/j.radmeas.2010.01.016

Cited by 111 publications

(57 citation statements)

References 27 publications

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“…Besides these two luminescence dosimeters, SSDL Malaysia is currently studying another new luminescence dosimeter called InLight OSLD (optically stimulated luminescence dosimeter). This is due to the many advantages of the OSLD described elsewhere [3,4]. In addition, OSLD has been reported been used in more than 80% of healthcare facilities in the United States [5].…”

Section: Introductionmentioning

confidence: 99%

OSLD energy response performance and dose accuracy at 24 - 1250 keV: Comparison with TLD-100H and TLD-100

Kadir

Priharti

Samat

et al. 2013

AIP Conference Proceedings

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Section: Introductionmentioning

confidence: 99%

OSLD energy response performance and dose accuracy at 24 - 1250 keV: Comparison with TLD-100H and TLD-100

Kadir

Priharti

Samat

et al. 2013

AIP Conference Proceedings

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“…Kortov and Ustyantsev, 2013). This all allows us to conclude that the luminescent methods have a great potential for serving high-level dosimetry (Olko, 2010).…”

Section: Summary and Discussionmentioning

confidence: 82%

On LiF:Mg,Cu,P and LiF:Mg,Ti phosphors high & ultra-high dose features

Obryk

Khoury

Barros

et al. 2014

Radiation Measurements

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HIGHLIGHTS• TL peak 'B' occurs for LiF:Mg,Cu,P after high doses of all radiation types.• Highly irradiated LiF:Mg,Ti glow-curve shape depends on the radiation quality.• High dose features of both phosphors are significantly different in many aspects.• Associated PL/TL high-dose measurements are possible using LiF:Mg,Cu,P.• Dopants role is crucial for high-dose features of lithium fluoride based phosphors. AbstractLiF:Mg,Ti and LiF:Mg,Cu,P are well known thermoluminescence (TL) dosimetry materials since many years. A few years ago their properties seemed well known and it was widely believed that they are not suitable for the measurement of doses above the saturation level of the TL signal, which for both materials occur at about 1 kGy.The high-dose high-temperature TL emission of LiF:Mg,Cu,P observed at the IFJ in 2006, which above 30 kGy takes the form of the so-called TL peak 'B', opened the way to use this material for measuring the dose in the high and ultra-high range, in particular for the monitoring of ionizing radiation around the essential electronic elements of high-energy accelerators, also fission and fusion facilities, as well as for emergency dosimetry. This discovery initiated studies of high and ultra-high dose characteristics of both these phosphors, which turned out to be significantly different in many aspects. These studies not only strive to refine the method for measuring high doses based on the observed phenomenon, but also, and perhaps above all, bring us closer to understanding its origin and essence. This manuscript aims to review existing research data on the high and ultra-high dose features of both LiF based phosphors.

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“…However, the response of this type of dosimeter depends on the neutron energy spectrum, and therefore a fi eld calibration of dosimeters should be conducted for the proper evaluation of doses [6]. Other disadvantages are related to the relationship between the neutron cross-sections in tissue and in the thermoluminescence materials as reported by Olko [7].…”

Section: Ud-813 Dosimetersmentioning

confidence: 99%

“…1), are enriched with lithium 6 Li and boron 10 B isotopes that have a considerably larger cross-section for interaction with thermal neutrons in comparison to the isotopes of lithium 7 Li and boron 11 B that predominantly contain naturally occurring materials (the cross-sections are about 26 000 and 770 000 times larger, respectively).…”

Section: Ud-813 Dosimetersmentioning

confidence: 99%

Application of the Böhm chamber for reference beta dose measurements and the calibration of personal dosimeters

Skubacz

2016

Nukleonika

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IntroductionThe appropriate evaluation of measured doses in mixed fi elds requires the calibration of dosimeters in relation to different types of radiation and exposure conditions in order to split the signal into individual components corresponding to the specifi c radiation and exposure conditions of the entire period and evaluate the critical level, lower limit of detection and corresponding uncertainty [1]. The Panasonic UD-813 thermoluminescent dosimeters (TLDs) are used to evaluate mainly the doses related to neutrons but their design is appropriate for their use in the mixed fi eld. Therefore, the dosimeters have to be irradiated to fulfi l these tasks by beta, gamma, neutron and X-ray using the slab phantom or free in the air for environmental dosimetry.The 137 Cs gamma sources and 137 Sr beta sources that were used to fulfi l the task were mounted on the IM6/M-2 and IB1/P installation, respectively, and the X-ray that could be modifi ed by fi lters recommended by the ISO standard 4037-1:1996 [2] was generated by the XCS-320-ST/X-RAY CAL (320 kV) device. All of these installations, made by TEMA Abstract. Thermoluminescent dosimeters (TLDs) currently used in personal and area dosimetry are often utilized to measure doses of ionizing radiation in fi elds with a more complex structure and therefore they should be calibrated in relation to different radiation types. The results of such calibration presented for UD-813 TLDs allowed for evaluation of their capability in relation to different radiation types like the beta and photon radiation of different energies and neutron radiation generated by the 241 Am-Be source. The detector response for 60 keV photons was 10% higher than for the 662 keV gamma radiation of 137 Cs. There were also response differences in relation to photon and beta radiation between detectors with an enhanced concentration of lithium 6 Li and boron 10 B and detectors containing a natural level of these isotopes. Measurements of the reference beta doses were performed with the help of the Böhm chamber. This method is relatively more complicated compared to determining the reference photon and neutron doses and is described thoroughly in this paper. The corrected current measured by the Böhm chamber for the chosen parameters was a linear function for an entire available range of the chamber depths. The percentage of errors related to the evaluated reference beta doses were below 2% despite a rather large number of corrections that should be taken into account. The calibration distances varied from 11 cm to 50 cm. For this range and beta particle energy, the absorption of radiation in the air was negligible and their attenuation had a predominantly geometric character.

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Advantages and disadvantages of luminescence dosimetry

Cited by 111 publications

References 27 publications

OSLD energy response performance and dose accuracy at 24 - 1250 keV: Comparison with TLD-100H and TLD-100

OSLD energy response performance and dose accuracy at 24 - 1250 keV: Comparison with TLD-100H and TLD-100

On LiF:Mg,Cu,P and LiF:Mg,Ti phosphors high & ultra-high dose features

Application of the Böhm chamber for reference beta dose measurements and the calibration of personal dosimeters

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