Nanostructured Scintillator Developed In-House for Radon Detection

2021 ◽  
Author(s):  
Ayman Abdalla ◽  
Shaimaa Almalki ◽  
Noriaki Kawaguchi ◽  
Takayuki Yanagida
Keyword(s):  
Radon Detection

Radon and CO2 tracer for radioxenon subsurface sampling in the On Site Inspection

2020 ◽  
Author(s):  
Chiara Telloli ◽  
Barbara Ferrucci ◽  
Antonietta Rizzo ◽  
Stefano Salvi ◽  
Alberto Ubaldini ◽  
...  
Keyword(s):  
Radon Concentration ◽  
Underground Nuclear Explosion ◽  
Surface Sampling ◽  
Atmospheric Gases ◽  
Auxiliary Equipment ◽  
Geological Features ◽  
Strong Indicator ◽  
Gaseous Sample ◽  
On Site Inspection ◽  
Radon Detection

<p>The detection of anomalous concentration of Xenon radiosotopes in the subsurface gases during an On Site Inspection (OSI) is a strong indicator of a suspicious underground nuclear explosion. This implies that the sampling methodology ensure the collection of a reliable representative subsurface gaseous sample, avoiding the mixing with atmospheric gases. Radioxenon sampling in shallow layers can provide reliable results for desert areas, but different local geological features could result in more complex migration of subsurface gases to the very near superficial layers affecting the representativeness of the sample.</p><p>Radon is currently use as tracer to reveal the effective sampling of gases form the deep surface, so its measurement is coupled with the collection of radioxenon subsurface gases. The detection of radon anomalous concentration in subsurface gases could indicate different causes: high Radon content in subsurface indicate high radon concentration underground caused by the accumulation in an underground and confined cavity; on the other side, low radon detection in subsurface indicate low radon concentration underground that can be indicative of the absence of an underground cavity or the presence of rocks in the cavity absorbing radon. This lead to the consideration that radon is not a univocal tracer for Xe surface sampling in the OSI. A portable isotopic analyzer (that measures d13C and CO2) could be used to localize the faults and fracturing that could lead to a seeping of the subsurface gases. Therefore, this technique could be proposed as an auxiliary equipment for a preliminary activity during an OSI and a monitoring tool during subsurface gas sampling.</p>

The Role of Daughter Product Plateout in Passive Radon Detection

1984 ◽  
Vol 7 (1-4) ◽  
pp. 115-119 ◽  
Author(s):  
J.P. McLaughlin ◽  
F.D. O'Byrne
Keyword(s):  
Daughter Product ◽  
Radon Detection

Atmospheric Radon: Origin and Transfer

1994 ◽  
Vol 56 (1-4) ◽  
pp. 157-160 ◽  
Author(s):  
N. Segovia ◽  
E. Tamez ◽  
P. Peña ◽  
I. Gaso ◽  
F. Mireles ◽  
...  
Keyword(s):  
Ground Water ◽  
Building Materials ◽  
Liquid Scintillation ◽  
Exhalation Rate ◽  
Radon Monitor ◽  
Radon Detection ◽  
Silicon Based ◽  
Different Origins ◽  
Atmospheric Radon ◽  
Indoor And Outdoor

Abstract Atmospheric indoor and outdoor radon surveys have been performed in several locations of Mexico. In order to estimate the radon transfer from different origins to the atmosphere, soil and ground water, together with the exhalation rate from bare and coated building materials have also been studied. The radon detection was performed with SSNTD, an automatic silicon-based radon monitor and the liquid scintillation technique. The results from several years of monitoring indicate that the atmospheric radon behaviour is different for the countryside as compared with more complex inhabited regions; transfer from soil being inhibited by the specific structures of the cities. The effect of wall coatings reduced from 50% to 90% the radon exhalation from bare building materials. A low radon content was observed in the ground water samples studied.

A complete low cost radon detection system

2013 ◽  
Vol 78 ◽  
pp. 1-9 ◽  
Author(s):  
A. Bayrak ◽  
E. Barlas ◽  
E. Emirhan ◽  
Ç. Kutlu ◽  
C.S. Ozben
Keyword(s):  
Detection System ◽  
Low Cost ◽  
Radon Detection

The decay products of 222rn in etched track radon detection

1978 ◽  
Vol 10 (3) ◽  
pp. 277-293 ◽  
Author(s):  
R.H. McCorkell ◽  
Jeffrey W. Card
Keyword(s):  
Decay Products ◽  
Radon Detection

9. Radon Detection and Measurement in Soil and Groundwater

1990 ◽  
pp. 251-262 ◽  
Author(s):  
L. T. Gregg ◽  
James J. Holmes
Keyword(s):  
Radon Detection

Review of high-sensitivity Radon studies

2017 ◽  
Vol 32 (30) ◽  
pp. 1743004 ◽  
Author(s):  
M. Wojcik ◽  
G. Zuzel ◽  
H. Simgen
Keyword(s):  
Particle Physics ◽  
Noble Gas ◽  
High Sensitivity ◽  
Ambient Air ◽  
Detection Techniques ◽  
Low Energies ◽  
Radioactive Background ◽  
Radon Detection ◽  
Physics Experiments ◽  
Nuclear Processes

A challenge in many present cutting-edge particle physics experiments is the stringent requirements in terms of radioactive background. In peculiar, the prevention of Radon, a radioactive noble gas, which occurs from ambient air and it is also released by emanation from the omnipresent progenitor Radium. In this paper we review various high-sensitivity Radon detection techniques and approaches, applied in the experiments looking for rare nuclear processes happening at low energies. They allow to identify, quantitatively measure and finally suppress the numerous sources of Radon in the detectors’ components and plants.

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