THE INVESTIGATION OF LEAD SHIELD APPLICATION IN FOOD SAMPLES SPECTROMETRY BY NAI (TL) DETECTORS

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POURSIAMY N.; MIRSHOJAEI F.; HOSEINI J.; YOUSEFI ABHARLOO M.; YOUSEFI TELGERD M.; TAJIK AHMADI HOSSEIN; MOVAFEGHI A.

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Title

THE INVESTIGATION OF LEAD SHIELD APPLICATION IN FOOD SAMPLES SPECTROMETRY BY NAI (TL) DETECTORS

Author(s)

Keywords

GAMMA SPECTROMETRYQ4

NAI DETECTORQ4

BACKGROUNDQ4

DETECTOR EFFICIENCYQ4

MINIMUM DETECTABLE ACTIVITY (MDA)Q4

LEAD SHIELDQ4

BREMSSTRAHLUNGQ4

MARINELLI BEAKERQ4

Abstract

The measurement of food radiation, as one of the most important parameters in food consumption safety, is performed according to current regulations and standard tests in most countries including Iran. Due to the presence of low-level radiation in food samples for gamma-ray spectroscopy, using LEAD SHIELDs for reducing the BACKGROUND radiation is recommended. In this research, the influence of LEAD SHIELD on NaI (Tl) detector BACKGROUND is investigated and the amount of detection efficiency and MDA (Minimum Detectable Activity) with and without LEAD SHIELD is evaluated. The results show that a properly designed LEAD SHIELD is necessary for low-radiation measurements. The shield discussed in the present study can improve MDA value for more than 100%.

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APA: Copy

POURSIAMY, N., MIRSHOJAEI, F., HOSEINI, J., YOUSEFI ABHARLOO, M., YOUSEFI TELGERD, M., TAJIK AHMADI, HOSSEIN, & MOVAFEGHI, A.. (2005). THE INVESTIGATION OF LEAD SHIELD APPLICATION IN FOOD SAMPLES SPECTROMETRY BY NAI (TL) DETECTORS. JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, -(25), 76-89. SID. https://sid.ir/paper/87368/en

Vancouver: Copy

POURSIAMY N., MIRSHOJAEI F., HOSEINI J., YOUSEFI ABHARLOO M., YOUSEFI TELGERD M., TAJIK AHMADI HOSSEIN, MOVAFEGHI A.. THE INVESTIGATION OF LEAD SHIELD APPLICATION IN FOOD SAMPLES SPECTROMETRY BY NAI (TL) DETECTORS. JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY[Internet]. 2005;-(25):76-89. Available from: https://sid.ir/paper/87368/en

IEEE: Copy

N. POURSIAMY, F. MIRSHOJAEI, J. HOSEINI, M. YOUSEFI ABHARLOO, M. YOUSEFI TELGERD, HOSSEIN TAJIK AHMADI, and A. MOVAFEGHI, “THE INVESTIGATION OF LEAD SHIELD APPLICATION IN FOOD SAMPLES SPECTROMETRY BY NAI (TL) DETECTORS,” JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, vol. -, no. 25, pp. 76–89, 2005, [Online]. Available: https://sid.ir/paper/87368/en

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