Theoretical and experimental study of the LR-115 detector response in a non-commercial radon monitor

Pérez, B.; López, Martin I.; Palacios, D.

doi:10.1016/j.apradiso.2020.109112

Cited by 4 publications

(2 citation statements)

References 30 publications

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“…Measurements can be made using this method daily, monthly or on a seasonal or annual basis. The nuclear trace detectors used in this method generally consist of plastic film layers such as polycarbonate, cellulose acetate, and allyl diglycol carbonate [176,177]. The measurement process is based on the principle of counting the invisible traces left by the alpha particles hitting these plastic layers using a microscope and clarifying them using the chemical etching method [21,72].…”

Section: Passive Measurement Methodsmentioning

confidence: 99%

Radon, Concrete, Buildings and Human Health—A Review Study

Bulut,

Şahin

2024

Buildings

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A comprehensive evaluation of the results obtained according to the measurement of radon gas in buildings and concrete, which is the most consumed material in the world after water, in accessible studies carried out in the last 40 years is the main objective of this study. The paper additionally aims to address the gap in the literature by comparatively determining which parameters affect radon–concrete and radon–building relationships. The scientific knowledge compiled within the scope of this article was presented under the main headings of radon and radon gas measurements in concrete and buildings. Radon gas, also known as the “invisible killer”, is considered the second most important cause of lung cancer after smoking (the gas is responsible for 3–14% of lung cancer cases in the world). The results determined that radon concentration limits have been applied in the range of 100–400 Bqm−3 in houses and 100–3700 Bqm−3 in workplaces. Studies conducted on the exhalation rate of radon showed that the radon exhalation rate of concrete may be in the range of 0.23–510 Bqm−2 h−1. The results of indoor radon concentration measurements revealed that values between 4.6 Bqm−3 and 583 Bqm−3 were obtained. Despite the existing literature, some researchers state that there is an urgent need for an improved and widely accepted protocol based on reliable measurement techniques to standardize measurements of the radon exhalation rate of construction materials and the indoor radon concentration of buildings.

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Section: Passive Measurement Methodsmentioning

confidence: 99%

Radon, Concrete, Buildings and Human Health—A Review Study

Bulut,

Şahin

2024

Buildings

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“…Therefore, the LR-115 placed inside the monitor only recorded alpha particles of 222 Rn and its progeny. A calibration factor of (0.0238 ± 0.0007) tracks•cm −2 • Bq −1 • d −1 • m 3 was used to convert the track density to 222 Rn concentration [54]. The exposure time of G2 monitors was approximately twelve weeks.…”

Section: Diffusion Chambersmentioning

confidence: 99%

Estimation of Indoor 222Rn Concentration in Lima, Peru Using LR-115 Nuclear Track Detectors Exposed in Different Modes

Pereyra,

Guevara-Pillaca,

Liza

et al. 2023

Atmosphere

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Radon is the main source of natural radioactivity, and its measurement is considered extremely important in radioprotection, given its relationship with the occurrence of lung cancer. In the last two years, measurements of this radioactive gas were carried out in Lima considering a grid of 5 km2 and the population density to determine the number of measurements to be carried out. Cellulose nitrate nuclear track detectors exposed in bare mode and diffusion chamber mode were used to estimate 222Rn concentrations. In diffusion chamber mode, non-commercial monitors and commercial monitors were used. The monitoring results are presented for 43 districts of the Lima Province whose population is approximately ten million inhabitants occupying a total area of 2655.15 km2. Measurements were made obtaining an average concentration of 49 Bq·m−3 using bare detectors and 66 Bq·m−3 using non-commercial diffusion chambers. Average concentrations obtained by both detector exposure modes were below the maximum concentration recommended by the WHO. A radon (222Rn) map was also obtained as a visual representation of the 222Rn levels in the Lima province using inverse distance weighting (IDW) interpolation.

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