Background radiation reduction for a high-resolution gamma-ray spectrometer used for environmental radioactivity measurements

Rădulescu, Ileana; Blebea-Apostu, Ana Maria; Margineanu, R.; Mocanu, N.

doi:10.1016/j.nima.2013.03.024

Cited by 15 publications

(6 citation statements)

References 24 publications

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“…An empty container was counted in the same manner and geometry as the samples in order to determine the background distribution around the detector. The background spectra were utilized so as to correct the net peak area of the gamma rays of the measured natural radionuclides [10,[11][12]. The calibrations of the detector were described in detail in earlier works [13][14].…”

Section: Methodsmentioning

confidence: 99%

Chemical and Radiological Characterizations of the Desert Dust Coming from Northern Africa to Batman (Southeastern Turkey)

Isık

Çevik

Akkoca

et al. 2022

Cumhuriyet Science Journal

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This work investigates the chemical and radiological characterizations of the dust coming from Sahara in North Africa to Batman city in the southeastern region of Turkey on 20 May 2017. According to meteorological maps, the source region of the dust storm that took place in Batman was found to be Libya, which is supported by the NOAA HYSPLIT model’s back trajectory analysis. XRD analyses show that the common minerals of the dust samples are quartz, feldspars, calcite, dolomite, hematite and rutile. Chemical patterns of some major, minor and trace elements in dust samples are generally consistent with those of Saharan Dust composition. The heavy metals in the dust follow the decreasing concentration order: Mn > Zn > Cr >Ni > Cu > Pb. The enrichment factors (EF) of these elements show anthropogenic contamination effects with regard to Zn, Cr and S elements in dust samples. The corresponding values of the radionuclides, the absorbed dose rates in the air and the annual effective doses in the samples were also evaluated and compared to the internationally recommended values. The findings are supposed to be beneficial for tracking and evaluating any environmental pollution inventory in this area.

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Section: Methodsmentioning

confidence: 99%

Chemical and Radiological Characterizations of the Desert Dust Coming from Northern Africa to Batman (Southeastern Turkey)

Isık

Çevik

Akkoca

et al. 2022

Cumhuriyet Science Journal

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“…Counting times were 28000, 57000, 83000 and 260000 sec respectively. Measured activity, MDA and deviation from reference values are shown inTable 2,3,4,5,6. As can be seen at tables, biggest variation of the activity measurement was daytime measurements for Det#01.Table 2 shows the results of the measurements. Minimum and maximum value of the activity measurements for 214 Pb, 214 Bi and 226 Ra are 21.4-23.2 Bq/kg, 20.3-22.6 Bq/kg and 20.9-22.9 Bq/kg respectively.…”

mentioning

confidence: 94%

“…Low detection limits provide more accurate and precise measurements of radionuclides in environmental samples. So to improve low detection limit gamma-ray spectrometry laboratories pay special attention to minimize the radiation background of detectors [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Radon Background Fluctuation on the Low Activity Measurement of the 214Pb, 214Bi and 226Ra

Ağuş

2017

SDÜ Fen Bil Enst Der

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Abstract:In this study, radon background fluctuation effect on the measurement of 214 Pb, 214 Bi and 226 Ra low level activity concentrations were investigated in ventilated laboratory. For this purpose, detectors which had 150% and 20% efficiencies were used. In spite of the air ventilation, radon background fluctuation effect on the low level activity measurement was observed. 20% efficiency detector measured activity discrepancies were 5.7% for 214

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“…Because of this, any γ-ray spectroscopy laboratory pays special attention to minimize the radiation background of detectors to improve the Minimum Detectable Activity (MDA) of the detection system. The MDA of the detection system is defined as [1],…”

Section: Introductionmentioning

confidence: 99%

Measurement and simulation of gamma-ray background in a low energy accelerator facility

Sharma

Sarkar

2020

J. Inst.

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The γ-ray background in the indoor environment has been measured up to 3 MeV to evaluate the feasibility of studying low cross-section (nanobarn to picobarn range) astrophysical reactions at the Facility for Research in Experimental Nuclear Astrophysics (FRENA), Saha Institute of Nuclear Physics, Kolkata. An n-type coaxial HPGe detector with 20% relative efficiency has been placed at different locations in the accelerator and beam halls for the measurement. The measured activity has been compared with that at two laboratories (with standard brick walls) with and without passive and active radiation shieldings. As the halls at FRENA are well shielded by concrete, the contribution of the shielding in indoor γ-ray background has been delineated by simulation using a 4π-geometry model.

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Background radiation reduction for a high-resolution gamma-ray spectrometer used for environmental radioactivity measurements

Cited by 15 publications

References 24 publications

Chemical and Radiological Characterizations of the Desert Dust Coming from Northern Africa to Batman (Southeastern Turkey)

Chemical and Radiological Characterizations of the Desert Dust Coming from Northern Africa to Batman (Southeastern Turkey)

Effect of the Radon Background Fluctuation on the Low Activity Measurement of the <sup>214</sup>Pb, <sup>214</sup>Bi and <sup>226</sup>Ra

Measurement and simulation of gamma-ray background in a low energy accelerator facility

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