Results 51 to 60 of about 4,243,534 (405)

Sum-peak method with two NaI(Tl) crystals: 68(Ge+Ga) standardization

Brazilian Journal of Radiation Sciences, 2019
A 68(Ge+Ga) commercial solution has been standardized in LNMRI in Brazil, by sum-peak method, in which a 3”x3” NaI(Tl) gamma-ray detector is positioned at the top of a well-type 5”x5” NaI(Tl) gamma-ray detector, resulting in a set up approximately  4p ...
Estela Maria Oliveira, Akira Iwahara, Roberto Poledna, Carlos José da Silva, Paulo Alberto Lima da Cruz, Regio dos Santos Gomes, José Ubiratan Delgado, Ricardo Tadeu Lopes   +7 more
doaj   +1 more source

Development of extendable on-line test system for total ionizing dose effect of microprocessor

He jishu, 2022
BackgroundCompared with transistors and small-scale integrated circuits, the total ionizing dose (TID) effect and testing of multifunctional large scale integrated microprocessors are more complex. The difficulty of testing is to analyze the failure mode
CHEN Faguo, YU Weiyue, LIANG Runcheng, ZHENG Zhirui, GUO Rong   +4 more
doaj   +1 more source

The Response of Living Organisms to Low Radiation Environment and Its Implications in Radiation Protection

Frontiers in Public Health, 2020
Life has evolved on Earth for about 4 billion years in the presence of the natural background of ionizing radiation. It is extremely likely that it contributed, and still contributes, to shaping present form of life.
M. Belli, Luca Indovina
semanticscholar   +1 more source

Lung Cancer Screening with Low-Dose CT: Radiation Risk and Benefit–Risk Assessment for Different Screening Scenarios

Diagnostics, 2022
Lung cancer is a severe disease that affects predominantly smokers and represents a leading cause of cancer death in Europe. Recent meta-analyses of randomized controlled trials (RCTs) have yielded that low-dose computed tomography (LDCT) screening can ...
Elke A. Nekolla, Gunnar Brix, Jürgen Griebel   +2 more
doaj   +1 more source

Aspergillus niger Spores Are Highly Resistant to Space Radiation [PDF]

, 2020
The filamentous fungus Aspergillus niger is one of the main contaminants of the International Space Station (ISS). It forms highly pigmented, airborne spores that have thick cell walls and low metabolic activity, enabling them to withstand harsh ...
Cortesão, Marta, de Haas, Aram, Fujimori, Akira, Meyer, Vera, Möller, Ralf, Schütze, Tabea, Unterbusch, Rebecca   +6 more
core   +2 more sources

Calibration of gamma cameras for the Evaluation of Accidental Intakes of high-energy photon emitting Radionuclides by humans based on Urine Samples

Brazilian Journal of Radiation Sciences, 2018
The prompt response to emergency situations involving suspicion of intakes of radionuclides requires the use of simple and rapid methods of internal monitoring of the exposed individuals.
Ämilie Louize Degenhardt, Ana Letícia Dantas, Eder Augusto de Lucena, Wanderson de Oliveira Souza, Bernardo Maranhão Dantas   +4 more
doaj   +1 more source

Toxic effects of combined exposure of tritiated water and genistein on the growth and development of zebrafish and its mechanism

Frontiers in Environmental Science, 2022
Water pollution and control are important issues of our lasting concern. Environmental media often contains a variety of compounds. Tritium is widely present in nature due to human activities. As an endocrine disruptor, genistein is widely found in water
Fengmei Cui, Fengmei Cui, Qixuan Zhang, Qixuan Zhang, Jun Wan, Jun Wan, Liang Sun, Liang Sun, Na Chen, Na Chen, Huiyuan Xue, Huiyuan Xue, Tianzi Wang, Tianzi Wang, Fajian Luo, Fajian Luo, Qiu Chen, Qiu Chen, Yu Tu, Yu Tu   +19 more
doaj   +1 more source

Evolution of radiation protection for medical workers.

British Journal of Radiology, 2020
Within a few months of discovery, x-rays were being used worldwide for diagnosis and within a year or two for therapy. It became clear very quickly that while there were immense benefits there were significant associated hazards, not only for the ...
John D Boice, L. Dauer, Kenneth R Kase, Fred A. Mettler, Richard J Vetter   +4 more
semanticscholar   +1 more source

Shielding Performance Measurements of Spent Fuel Transportation Container

Journal of Isotopes, 2015
The safety supervision of radioactive material transportation package has been further stressed and implemented. The shielding performance measurements of spent fuel transport container is the important content of supervision.
SUN Hong-chao, LI Guo-qiang, YAN Feng, ZHUANG Da-jie   +3 more
doaj   +1 more source

Development and calibration of a portable detection device for in vivo measurement of high-energy photon emitters incorporated by humans

Brazilian Journal of Radiation Sciences, 2018
This work presents the evaluation of the applicability and sensitivity of a portable detection device specially designed for in vivo measurement of high-energy photon emitters in the human body.
Alexandre Barbosa Soares, Mayara Nascimento Arbach, Éder Augusto de Lucena, Ana Letícia Almeida Dantas, Bernardo Maranhão Dantas   +4 more
doaj   +1 more source