Results 1 to 10 of about 731,305 (291)

Virtual calibration of whole-body counters to consider the size dependency of counting efficiency using Monte Carlo simulations

Nuclear Engineering and Technology, 2021
The counting efficiencies obtained using anthropomorphic physical phantoms are generally used in whole-body counting measurements to determine the level of internal contamination in the body.
MinSeok Park, Han Sung Kim, Jaeryong Yoo, Chan Hyeong Kim, Won Il Jang, Sunhoo Park   +5 more
doaj   +3 more sources

Determination of counting efficiency considering the biodistribution of 131I activity in the whole-body counting measurement

Nuclear Engineering and Technology, 2023
Whole-body counters are widely used to assess internal contamination after a nuclear accident. However, it is difficult to determine radioiodine activity due to limitations in conventional calibration phantoms.
MinSeok Park, Jaeryong Yoo, Minho Kim, Won Il Jang, Sunhoo Park   +4 more
doaj   +3 more sources

Modelling Ag-particle activation and growth in a TSI WCPC model 3785 [PDF]

Atmospheric Measurement Techniques, 2010
In this work, we modelled activation and growth of silver particles in the water-operated TSI model 3785 water condensation particle counter (WCPC). Our objective was to investigate theoretically how various effects influence the counting efficiency of ...
F. Stratmann, E. Herrmann, T. Petäjä, M. Kulmala   +3 more
doaj   +5 more sources

Vision-Based People Counting and Tracking for Urban Environments [PDF]

Journal of Imaging
Population growth and expansion of urban areas increase the need for the introduction of intelligent passenger traffic monitoring systems. Accurate estimation of the number of passengers is an important condition for improving the efficiency, safety and ...
Daniyar Nurseitov, Kairat Bostanbekov, Nazgul Toiganbayeva, Aidana Zhalgas, Didar Yedilkhan, Beibut Amirgaliyev   +5 more
doaj   +2 more sources

Automated seed counting using image processing and deep learning [PDF]

Frontiers in Plant Science
IntroductionAccurate seed counting is an essential task in agricultural research and farming, supporting activities such as crop breeding, yield prediction, and weed management.
Qiuyu Zu, Qiuyu Zu, Teng Liu, Wenpeng Zhu, Yan Pan, Jinxu Wang, Xinru Song, Jialin Yu, Shu Dang, Xiaoming Yu, Zhenyu Zhang   +10 more
doaj   +2 more sources

Detection Efficiency of a NaI(Tl) Gamma Spectrometry System for Measurement of Low Level Radioactivity [PDF]

Physics Access, 2021
Qualitative analysis of radionuclides requires the use of reliable gamma-ray detection system. The NaI(Tl) detector has been widely used and still one of the most used detectors today.
Biere P Ebibuloami, Ogunremi Ayorinde, Aina J Oluwagbenga, Emumejaye Kugbere, Olaoye M Adeola , Mustapha A Olalekan   +5 more
doaj   +1 more source

Counting efficiency in gamma-ray spectrometry with different sample volumes for the same geometry

Brazilian Journal of Radiation Sciences, 2022
The aim of this study is to determine an easy and fast method to calculate efficiencies in different volumes, in the same counting geometry, for gamma-ray spectrometry technique.
Marcelo Bessa Nisti, Marcelo Francis Máduar, Sandra Regina Damatto, Marcos Medrado de Alencar   +3 more
doaj   +1 more source

Counting Efficiency of Registration of Contributions of Fast Neutron Reaction Products by Detectors Based on Oxide Scintillators ZnWO4, Bi4Ge3O12, CdWO4 and Gd2SiO5

East European Journal of Physics, 2023
The results of the study of the contributions of the interaction reactions of fast neutron sources of 239Pu-Be and 252Cf to the counting efficiency of registration by oxide scintillators CdWO4, ZnWO4, Bi4Ge3O12 and Gd2SiO5, presented. The amount of gamma
Gennadiy M. Onyshchenko, Boris V. Grynyov, Ivan I. Yakymenko, Sergey V. Naydenov, Pylyp E. Kuznietsov, Oleksandr Shchus   +5 more
doaj   +1 more source

The dependence of Ge detectors efficiency on the density of the samples in gamma-ray spectrometry [PDF]

Nuclear Technology and Radiation Protection, 2007
The effect of the density of environmental samples on the counting efficiency of Ge detectors used in gamma-spectrometry was studied. The dependence εff(ρ) was determined for two HPGe detectors (relative efficiencies 18% and 20%) using five radioactive ...
Vukašinović Ivana, Todorović Dragana, Popović Dragana R.   +2 more
doaj   +1 more source

A Deep Learning Framework for Video-Based Vehicle Counting

Frontiers in Physics, 2022
Traffic surveillance can be used to monitor and collect the traffic condition data of road networks, which plays an important role in a wide range of applications in intelligent transportation systems (ITSs). Accurately and rapidly detecting and counting
Haojia Lin, Haojia Lin, Zhilu Yuan, Biao He, Biao He, Biao He, Xi Kuai, Xiaoming Li, Renzhong Guo, Renzhong Guo   +9 more
doaj   +1 more source