Results 61 to 70 of about 716 (178)

Detecting Anomalies in Radon and Thoron Time Series Data Using Kernel and Wavelet Density Estimation Methods

Geosciences
Long-term monitoring of radon (222Rn) and thoron (220Rn) radioactive gases has been used in earthquake forecasting. Seismic activity before earthquakes raises the levels of these gases, causing abnormalities in the baseline values of radon and thoron ...
Muhammad Rafique, Awais Rasheed, Muhammad Osama, Adil Aslam Mir, Dimitrios Nikolopoulos, Kyriaki Kiskira, Aftab Alam, Georgios Prezerakos, Aqib Javed, Panayiotis Yannakopoulos, Christos Drosos, Georgios Priniotakis, Nikitas Gerolimos, Michail Papoutsidakis, Kimberlee Jane Kearfott, Saeed Ur Rahman   +15 more
doaj   +1 more source

The Estimated Annual Effective Dose Caused By Radon and Thoron Gases in the Vicinity of Active Faults in the North East of Iran

Iranian South Medical Journal, 2017
Background: Active faults are actually the most important factor in the entry of radon and thoron to the surface of Earth. The location of residential areas on these faults is one of the main reasons for increasing the concentration of these radioactive ...
Ali Asghar Mowlavi, Farhad Mohammad Jafari   +1 more
doaj  

Outdoor radon and thoron in an area with naturally ventilating bedrock fractures

Frontiers in Environmental Science
Open fractures lead to increased permeability of the bedrock, and, if connected to the surface, allow for groundwater flow and air ventilation. Radon and thoron received by groundwater and ventilating air from bedrock can then be released at the surface.
Hallvard Haanes, Paula Snook, Alexander Maschler, Thomas Scheiber   +3 more
doaj   +1 more source

THORON-SCOUT - first diffusion based active Radon and Thoron monitor

IOP Conference Series: Materials Science and Engineering, 2016
THORON-SCOUT is a stand-alone diffusion based active Radon and Thoron monitor for long term indoor measurements to evaluate the human health risk due to activity concentration in the breathing air. Alpha-particle spectroscopy of Po isotopes, being the progeny of the decay of the radioactive noble gas Radon, is applied to separately monitor activity ...
W Wagner, T Streil, V Oeser, G Horak, M Duzynski   +4 more
openaire   +1 more source

New guidelines on radiation survey and sanitary assessment of residential, public and industrial buildings and facilities in terms of radiation safety indicators. Part 2

Радиационная гигиена
The paper (in two parts) presents an overview of the new guidelines MR 2.6.1.0333-23 (approved on 01 December 2023) that supersede guidelines MU 2.6.1.2838-11, which were used for organizing radiation surveys of residential, public and industrial ...
D. V. Kononenko, T. A. Kormanovskaya, A. S. Vasilyev, K. A. Saprykin   +3 more
doaj   +1 more source

RADON AND THORON PROGENY IN DUTCH DWELLINGS

Radiation Protection Dosimetry, 2018
Radon and thoron progenies in Dutch dwellings cause ~400 cases of lung cancer per year. Some 30% of the risk is due to thoron progeny, which demonstrates that the influence of thoron progeny is much larger than previously anticipated. This was concluded from a national survey in 2500 Dutch dwellings, built since 1930.
Smetsers, R C G M, Blaauboer, R O, Dekkers, F, Slaper, H   +3 more
openaire   +4 more sources

Indoor radon and thoron levels in some residences of Sri Renga Narayana Puram Village, Tirunelveli, India, using solid-state nuclear track detectors

Radiation Protection and Environment
The indoor radon and thoron measurements were carried out at Sri Renga Narayana Puram village, Tirunelveli district, Tamil Nadu, which is located nearer to the Nuclear Power Plant, Kudankulam.
M. Anitha, D. Deva Jayanthi, C. G. Maniyan   +2 more
doaj   +1 more source

Integrating Radon/Thoron and Gamma Radiation Exposure for a Realistic Estimation of Dose Arising from Building Materials

Applied Sciences
Long-term exposure to radon, thoron, and gamma radiation from building materials poses a significant health risk to occupants. Current methods for estimating radiation doses often fail to consider the combined impact of these sources.
Mirsina M. Aghdam, Quentin Crowley
doaj   +1 more source

Measurements of Thoron in the Atmosphere

Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan, 1972
A study has been made on a method for calibrating the ionization current to be determined when measuring thoron concentration with an ionization chamber. The ionization current generated by the thoron exhausted from RdTh solution would appear to be controlled mainly by the bubbling velocity in the bottle, and the reciprocal of the current is a linear ...
SHIMO, Michikuni, IKEBE, Yukimasa, KAWANO, Minoru   +2 more
openaire   +2 more sources

Assessment of radon/thoron exhalation rate in the soil samples of Amritsar and Tarn Taran district of Punjab state

Radiation Protection and Environment, 2018
In the present study, the radon mass and thoron surface exhalation rates have been measured in the soil samples collected from the villages of the Amritsar and Tarn Taran districts of Punjab using the active portable device, i.e., SMART RnDuo monitor to ...
Manpreet Kaur, Ajay Kumar, Sandeep Kaur, Kawaljit Kaur   +3 more
doaj   +1 more source