Evaluation of Bicron NE MCP DXT-RAD Passive Extremity Dosemeter

Yuen, P.; Freedman, Nanette; Frketich, G.; Rotunda, J.E.

doi:10.1093/oxfordjournals.rpd.a032832

Cited by 5 publications

(4 citation statements)

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“…Later, DXTRADÔ dosimeters (Perry et al, 1996;Yuen et al, 1999;Luo et al, 2002) were developed. See Fig.…”

Section: Extremity Dosimeter Designmentioning

confidence: 99%

“…This makes it difficult to estimate the dose where the radiation field is unknown. Therefore, many products and designs of extremity dosimeters are aimed to overcome this difficulty (Contento et al, 1984;Dutt et al, 1986;Tawil et al, 1993;Perry et al, 1996;Bilski et al, 1996;Yuen et al, 1999;Christensen et al, 2001;Luo et al, 2002). The dosimeter described in this paper is an improved beta extremity ring that demonstrates good performance in many aspects while retaining wearability and protection from intrusion of biological and radiological contaminants.…”

Section: Introductionmentioning

confidence: 99%

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An improved HarshawTLD™ extremity dosimeter – DXTRAD beta ring

Luo

Velbeck

Rotunda

et al. 2011

Radiation Measurements

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“…Later, DXTRADÔ dosimeters (Perry et al, 1996;Yuen et al, 1999;Luo et al, 2002) were developed. See Fig.…”

Section: Extremity Dosimeter Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An improved HarshawTLD™ extremity dosimeter – DXTRAD beta ring

Luo

Velbeck

Rotunda

et al. 2011

Radiation Measurements

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“…For individual identification, the detector is surrounded by a circular barcode and number. This detector element is sealed to a plastic holder by a transparent cap with a thin entrance filter (5 mg/cm 2 ) in the centre [12].…”

Section: Description Of the Routine Calibration Proceduresmentioning

confidence: 99%

Performance of a device to minimise radiation dose to the hands during radioactive syringe calibration

Lindner

Busch²,

Burchert

2003

Eur J Nucl Med Mol Imaging

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The preparation of syringes for routine applications in nuclear medicine, and in particular the calibration procedure, is associated with high radiation exposure to the hands. To reduce this radiation burden, our group developed a modified calibration procedure based on a device that we refer to as the ActivoFix, which allows syringes to be drawn up inside the dose calibrator. This study investigated the performance of the new device as compared to the usual procedure of syringe calibration with regard to the absorbed radiation dose to the hands (fingertips and middle finger bases), the precision of the calibration procedure and the time required to calibrate syringes. Fourteen experienced nuclear medicine technologists drew up syringes from an initial eluate of 8.2 GBq using the conventional technique and the new calibration procedure. All technologists had to calibrate syringes with 50 MBq, 250 MBq and 650 MBq. This sequence was repeated four times using the conventional technique and then the new procedure. The equivalent dose to the hands was measured with thermoluminescent dosimeters. The exact amount of radioactivity in the syringe and the time needed for the calibration procedure were also recorded. The reduction in equivalent dose using the new device compared with the routine procedure ranged from 8.3- to 19.6-fold (mean 14.3-fold) for the fingers of the dominant hand and from 13.6- to 40.3-fold (mean 27-fold) for those of the non-dominant hand (total mean 21.3-fold). For small volumes, time could be saved with the ActivoFix, whereas for greater volumes time was lost. The device produced less variability in calibrating doses at 250 MBq and 650 MBq. Following the ALARA principle, the new device can be recommended for syringe calibration in nuclear medicine because the use of the ActivoFix-based procedure reduces finger dose by an average factor of 21, improves the precision of calibration and reduces the filling time for small volumes.

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“…However, the use of such TLDs in the case of mixed beta and gamma fields formed by nonuniformly distributed sources is complicated by the TLDs' energy and angular dependence of the electron detection efficiency (method response per unit of energy deposition) (Yuen et al 1999;Furetta et al 2001;Duggan et al 2004). Moreover, there may be a difference in detection efficiency for detection of beta and gamma radiation.…”

Section: Introductionmentioning

confidence: 99%

Internal in vitro dosimetry for fish using hydroxyapatite-based EPR detectors

Иванов

Shishkina

Osipov

et al. 2015

Radiat Environ Biophys

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A number of aquatic ecosystems were exposed to ionizing radiation as a result of the activities of the Mayak Production Association in the Southern Urals, former Soviet Union, in the 1950s. Currently, fishes inhabiting contaminated lakes are being actively studied. These investigations need dosimetric support. In the present paper the results of a pilot study for elaborating an EPR dosimeter which can be used for internal dosimetry in vitro are described. Biological hydroxyapatite is proposed here to be used as a detecting substance. More specifically, small hydroxyapatite grains are proposed for use as point detectors fixed in a solid matrix. After having been pelletized, the detectors were covered by Mylar and placed in the body of a fish to be stored in the fridge for several months. Application of the detectors for internal fish dosimetry demonstrated that the enamel sensitivity is sufficient for passive detection of ionizing radiation in fishes inhabiting contaminated lakes in the Southern Urals.

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Evaluation of Bicron NE MCP DXT-RAD Passive Extremity Dosemeter

Cited by 5 publications

References 0 publications

An improved HarshawTLD™ extremity dosimeter – DXTRAD beta ring

An improved HarshawTLD™ extremity dosimeter – DXTRAD beta ring

Performance of a device to minimise radiation dose to the hands during radioactive syringe calibration

Internal in vitro dosimetry for fish using hydroxyapatite-based EPR detectors

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