scholarly journals Nano Particles Including Radon Decay Products in Ambient Air

10.5772/16369 ◽  
2011 ◽  
Author(s):  
Janja Vaupoti
Keyword(s):  
Ambient Air ◽  
Nano Particles ◽  
Decay Products ◽  
Radon Decay

Exposure to radon/radon decay products in water works

2001 ◽  
Vol 272 (1-3) ◽  
pp. 347-348 ◽  
Author(s):  
J Schmitz ◽  
R.M Nickels
Keyword(s):  
Decay Products ◽  
Radon Decay

Determination of the concentration of aerosols of short-lived radon decay products

Atomic Energy ◽  
1962 ◽  
Vol 12 (4) ◽  
pp. 359-361
Author(s):  
N. P. Kattashov ◽  
G. A. Popov
Keyword(s):  
Decay Products ◽  
Radon Decay

scholarly journals Experimental setup for light-to-heat NIR conversion measurements of gold nano-particles’ solutions

2018 ◽  
Vol 5 (2) ◽  
pp. 38-47
Author(s):  
Nikolay Uzunov ◽  
Michele Bello ◽  
Laura Melendez-Alafort ◽  
Laura De Nardo
Keyword(s):  
Gold Nanoparticles ◽  
Near Infrared ◽  
Laser System ◽  
Fluorescence Emission ◽  
Ambient Air ◽  
Infrared Region ◽  
Nano Particles ◽  
Fixed Temperature ◽  
Electronic Temperature ◽  
Cuvette Holder

Abstract In recent years, there is a constantly increasing interest in the application of nanoparticles for cancer diagnosis and cancer therapy. In this respect, the most promising nano-objects at present are the gold nanoparticles. A very convenient and powerful property of these objects is their ability to increase their temperature under electro-magnetic irradiation with certain wavelength. In our research we have directed our efforts toward particular nano-objects specifically sensitive to electromagnetic radiation in the near-infrared region (NIR). In order to study the photothermic properties of the solutions of gold nanoparticles in the NIR we constructed a specific electronic setup consisting of a laser system with interchangeable laser diodes with different wavelength NIR light, a thermally-insulated cuvette-holder compartment with temperature measuring probes and a NIR spectrometer to control the stimulated fluorescence emission of the nanoparticles’ solutions. The temperature measurement compartment with the thermal-insulated cuvette holder was designed to maintain the solutions’ temperature at a fixed value right before the moment of laser irradiation. To maintain the measurement setup at a fixed temperature before the irradiation we used a thermal stabilized system based on two Peltier cells with electronic temperature control. The temperatures of the ambient air and the temperature of the cuvette walls were continuously measured in order to make corrections about the temperature dissipation during the irradiation.

Regional Deposition of Radon Decay Products in Human Airways

1992 ◽  
Vol 45 (1-4) ◽  
pp. 685-687
Author(s):  
R. Falk ◽  
H. Möre ◽  
L. Nyblom ◽  
I. Östergren
Keyword(s):  
Decay Products ◽  
Regional Deposition ◽  
Radon Decay ◽  
Human Airways

Monitoring the Exposure to Radon Decay Products in Mine Air Using Passive Track Detectors

1981 ◽  
Vol 40 (2) ◽  
pp. 211-217 ◽  
Author(s):  
T. Domanski ◽  
W. Chruscielewski ◽  
M. Hofman
Keyword(s):  
Decay Products ◽  
Radon Decay

Radon decay products equilibrium at different aerosol concentrations

2020 ◽  
Vol 156 ◽  
pp. 108981
Author(s):  
Mostafa Yuness Abdelfatah Mostafa ◽  
Hyam Nazmy Bader Khalaf ◽  
M. Zhukovsky
Keyword(s):  
Decay Products ◽  
Radon Decay

THE INFLUENCE OF THE EQUILIBRIUM FACTOR ON THE ESTIMATED ANNUAL EFFECTIVE DOSE FROM INHALED RADON DECAY PRODUCTS IN SELECTED WORKPLACES

2020 ◽  
Vol 191 (2) ◽  
pp. 188-191
Author(s):  
Petr P S Otahal ◽  
Ivo Burian ◽  
Eliska Fialova ◽  
Josef Vosahlik
Keyword(s):  
Effective Dose ◽  
Activity Concentration ◽  
Annual Effective Dose ◽  
Radiological Protection ◽  
Equilibrium Factor ◽  
Decay Products ◽  
Water Treatment Plants ◽  
Radon Decay ◽  
Effective Doses ◽  
Dose Coefficients

Abstract Measurements of activity concentration of radon gas and radon decay products were carried out in several workplaces including schools, radium spas, swimming pools, water treatment plants, caves and former mines. Based on these measurements, annual effective doses to workers were estimated and values of the equilibrium factor, F, were calculated. This paper describes the different approaches used to estimate the annual effective dose based on the dose coefficients recommended by the International Commission on Radiological Protection. Using the measured F values as opposed to the default F value of 0.4 changed the doses by about 5–95% depending mainly upon the ventilation conditions of the workplace.

Radon decay products attached to clothes in a nuclear laboratory

1999 ◽  
Vol 31 (1-6) ◽  
pp. 337-342 ◽  
Author(s):  
M. Balcázar ◽  
A. Chávez ◽  
G. Piña-Villalpando ◽  
M. Alfaro ◽  
D. Mendoza
Keyword(s):  
Decay Products ◽  
Radon Decay
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