Results 191 to 200 of about 2,823 (220)

Natural radioactivity and radon exhalation rate of soil in southern Egypt

Applied Radiation and Isotopes, 2001
The level of natural radioactivity in soil of 30 mining samples collected from six locations in southern Egypt was measured. Concentrations of radionuclides in samples were determined by gamma-ray spectrometer using HPGe detector with a specially designed shield.
A, Sroor, S M, El-Bahi, F, Ahmed, A S, Abdel-Haleem   +3 more
openaire   +2 more sources

Postprandial Changes in the Exhalation Rate of Radon Produced in Vivo

Science, 1978
The rate of exhalation of radon by persons with long-standing radium burdens increases about twofold shortly after a meal. The increase is short-lived and "normal" values are regained in 1.5 to 2 hours. The effect may account in part for the poor reproducibility in estimates of the freely emanating part of the radium content.
J, Rundo, F, Markun, J Y, Sha
openaire   +2 more sources

Measurements of radon exhalation rate for monitoring cement hydration

Materials and Structures, 2006
The paper deals with one of the physical methods, which can be used for monitoring hydration of cementitious materials: the radon exhalation method. Experiments with two types of hydrating cement paste (made with water to cement ratios of 0.25 and 0.33) are described. The kinetics of shrinkage and hydration heat development are discussed.
openaire   +1 more source

Determination of radon specific exhalation rate from Italian ceramic tiles.

2007
Porcelain tiles commonly manufactured in Italy have been studied for both natural radionuclide content and radon emanation using high resolution gamma spectroscopy and the E-PERM electret ion chamber, respectively. The measured activity concentrations were 33–257 Bq/kg for U-238, 33–197 Bq/kg for Ra-226, and 39–76 Bq/kg for Th-232; the radon exhalation
RIGHI, SERENA, VERITA', SIMONA, BRUZZI, LUIGI, GUERRA, ROBERTA, Albertazzi A., BONVICINI, GIULIANA   +5 more
openaire   +2 more sources

RADON CONCENTRATION AND RADON EXHALATION RATE FOR GRANITE ROCKS, CENTRAL EASTERN DESERT, EGYPT

2023
The aim of the present work deals with measuring 222Rn Concentration (Bq/m3), 222Rn exhalation rate, annual effective dose (indoors and outdoors) and excess lifetime cancer risk (RRLC %), for basement rock samples from central Eastern Desert of Egypt using Alpha GUARD.
Zakaly, H. M. H., Sidique, E., Salaheldin, G., El-Haddad, M., Awad, H. A. M., El-Taher, A.   +5 more
openaire   +1 more source

Effect of heat treatment on the emission rate of radon from red sandstone

Environmental Science and Pollution Research, 2021
Qiang Sun, De-lu Li
exaly  

Measurement of the radon exhalation rate from water surface

2023
Jiulin Wu, Shuaibin Liu, Hu, Tao, Lin, Fen, Ruomei Xie, Shuai Yuan, Haibo Yi, Yixiang Mo, Jiale Sun, Linquan Cheng, Huiying Li, Zhipeng Liu, Zhongkai Fan, Yanliang Tan   +13 more
openaire   +1 more source

Radon Concentrations in Soil Samples and Radon Exhalation Rates in Baghdad Governorate

Materials Focus, 2018
Hazim Louis Mansour, Nada Fathil Tawfiq, Mahmood Salim Karim, Nadir F. Habubi   +3 more
openaire   +1 more source

Natural radioactivity and radon exhalation rate of Sardinian dimension stones

Construction and Building Materials, 2020
Valentina Dentoni, Stefania Da Pelo, Paolo Randaccio   +2 more
exaly  

Ambient gamma dose rate as an indicator of geogenic radon potential

Science of the Total Environment, 2021
exaly