The assessment of plutonium and americium in contaminated wounds with high energy resolution semiconductor detectors

Genicot, J.-L.; Hardeman, Frank; Oberstedt, S.

doi:10.1016/0969-8043(94)00115-g

Cited by 11 publications

(6 citation statements)

References 9 publications

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“…Genicot et al (1995) carried out depth assessment of the Pu/ 241 Am contamination in wound by comparing the intensity of the gamma ray photon of 59.5 keV with x-rays between 13 and 25 keV. These results are only valid for the intake of chemically pure Pu or 241 Am, but in case of exposure to mixture of Pu isotopes and 241 Am, the combination of energies of 17.2, 17.6, 26.3 and 59.5 keV is needed to be used.…”

Section: Resultsmentioning

confidence: 97%

Applying a low energy HPGe detector gamma ray spectrometric technique for the evaluation of Pu/Am ratio in biological samples

Singh

Mishra

Yadav

et al. 2015

Applied Radiation and Isotopes

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Section: Resultsmentioning

confidence: 97%

Applying a low energy HPGe detector gamma ray spectrometric technique for the evaluation of Pu/Am ratio in biological samples

Singh

Mishra

Yadav

et al. 2015

Applied Radiation and Isotopes

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“…Hence, it is evident that a significant error was observed in the wound depth calculation when the low energy peaks were used for measurement. Some studies showed that the highest energy peak, E 5 ϭ 59.5 keV, of 241 Am can be the best choice for the quantification of this radioisotope in a wound (Genicot et al 1995).…”

Section: Resultsmentioning

confidence: 99%

Error Analysis for the in-Vivo Measurement of Radionuclides in Wounds: Monte Carlo Study

Ahmed

Capello²,

Sabourin³

et al. 2010

Health Physics

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This paper describes calculation of error associated with the direct in-vivo measurements of radionuclides in a wound. A typical radiation injury to a hand with Am radionuclide is illustrated for error analysis. A Monte Carlo model was developed and the detector pulse spectrum studied with a custom-designed HPGe detector. A pinhole collimator was designed, and its performance with a wide area detector was studied. The results show that significant errors might propagate if the lowest energy peaks of Am are used during in vivo measurements of the wound. In comparison to that, less uncertainty was found for 26.3 and 59.5 keV gamma peaks, and those levels are recommended for estimation of wound depth and activity.

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“…This count assumes that no other y-ray was present from 241Am in the 60 keV energy zone.This technique can be used advantageously instead of one described previously (7). The devices are also useful for the detection of 125I, 103Pd, l09Pd, 133Ba, and 137Cs in wounds or in organs when the organs are not too deep in the body (throat, lungs, liver, and bladder).…”

Section: Applicationsmentioning

confidence: 99%

Room-Temperature Semiconductor Detectors for in Vivo Monitoring of Internal Contamination

Genicot¹

1997

Environmental Health Perspectives

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In vivo monitoring of low-energy X-and-tray emitters has always been a difficult task, primarily because of lack of accuracy and the high detection limits of classical techniques. Various types of PIN diodes (diodes with a large intrinsic zone) were tested in the Radiation Protection Department of the Studie Centrum voor Kernenergie, Centre d'6tude de l'Energie Nucleaire (Mol, Belgium) in the measurement of radioactive body burden by direct methods. Current research is oriented toward the use of room-temperature diodes for the detection of low-energy photons escaping the body. In this paper, a new counting technique that involves a portable jacket containing the diodes is described. The system uses silicon diodes and is used out of a shielding room in order to be near the contamination. With this method rapid analysis and long counting times are possible, stress is reduced, and medical treatment can be optimized. CdZnTe detectors were also evaluated for this measurement technique but this type of detector is better adapted for counting inside a shielding room. The improvement of the accuracy of the measurement, taking into account the effect of the ribs, is described here, as well as the associated electronics necessary for this type of counting.

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The assessment of plutonium and americium in contaminated wounds with high energy resolution semiconductor detectors

Cited by 11 publications

References 9 publications

Applying a low energy HPGe detector gamma ray spectrometric technique for the evaluation of Pu/Am ratio in biological samples

Applying a low energy HPGe detector gamma ray spectrometric technique for the evaluation of Pu/Am ratio in biological samples

Error Analysis for the in-Vivo Measurement of Radionuclides in Wounds: Monte Carlo Study

Room-Temperature Semiconductor Detectors for in Vivo Monitoring of Internal Contamination

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