Results 31 to 40 of about 6,177,903 (303)

Energy, Resolution and Efficiency Calibration of a LaBr3(Ce) Scintillator

HNPS Proceedings, 2019
The last decade LaBr3(Ce) scintillation detectors have become commercially available and have better scintillation properties (energy resolution, temperature performance, decay time, light yield and material density) when compared with NaI(Tl ...
E. Ntalla, A. Clouvas, A. Savvidou
semanticscholar   +1 more source

Design and realization of calibration device for ground-water-level at Yongan seismic station

地震科学进展, 2020
In the process of digital observation，efficient observation means，reliable observation information and accurate calibration method are the important guarantees for observation quality.
Meimei Chen, Huiqing Lin, Shuilian Liu
doaj   +1 more source

Fast and deterministic optical phased array calibration via pointwise optimisation

Light: Advanced Manufacturing, 2023
Owing to the structural errors in the optical phased array, an initial random phase reduces the quality of the deflection beam. The most commonly applied approach to phase calibration is based on adaptive optics. However, adaptive optimisation approaches
Jingwen Shan, Hanyi Zhang, Lijing Li, Weijie Deng, Mingjie Sun   +4 more
doaj   +1 more source

Radiometric calibration of a large-array commodity CMOS multispectral camera for UAV-borne remote sensing

International Journal of Applied Earth Observations and Geoinformation, 2022
To meet the requirement of high-resolution and high-efficiency unmanned aerial vehicle (UAV)-borne multispectral remote sensing, using the miniaturized large-array commodity complementary metal-oxide semiconductor (CMOS) camera is an effective solution ...
Xiaoteng Zhou, Chun Liu, Yun Xue, Akram Akbar, Shoujun Jia, Yuan Zhou, Doudou Zeng   +6 more
doaj   +1 more source

Precise determination of HPGe detector efficiency for gamma spectrometry measurements of environmental samples with variable geometry and density

Nukleonika, 2017
A methodology to determine the full energy peak efficiency (FEPE) for precise gamma spectrometry measurements of environmental samples with high-purity germanium (HPGe) detector, valid when this efficiency depends on the energy of the radiation E, the ...
Barrera Manuel, Casas-Ruiz Melquiades, Alonso José J., Vidal Juan   +3 more
doaj   +1 more source

Optimization of an underwater in-situ LaBr3:Ce spectrometer with energy self-calibration and efficiency calibration. [PDF]

Applied Radiation and Isotopes, 2016
An underwater in-situ gamma-ray spectrometer based on LaBr3:Ce was developed and optimized to monitor marine radioactivity. The intrinsic background mainly from 138La and 227Ac of LaBr3:Ce was well determined by low background measurement and pulse shape
Z. Zeng, Xingyu Pan, Hao Ma, Jianhua He, J. Cang, M. Zeng, Yuhao Mi, Jianping Cheng   +7 more
semanticscholar   +1 more source

Streamflow characteristics from modeled runoff time series – importance of calibration criteria selection [PDF]

Hydrology and Earth System Sciences, 2017
Ecologically relevant streamflow characteristics (SFCs) of ungauged catchments are often estimated from simulated runoff of hydrologic models that were originally calibrated on gauged catchments.
S. Pool, M. J. P. Vis, R. R. Knight, J. Seibert, J. Seibert, J. Seibert   +5 more
doaj   +1 more source

Efficient Calibration for Decision Making

Proceedings of the 58th Annual ACM Symposium on Theory of Computing
A decision-theoretic characterization of perfect calibration is that an agent seeking to minimize a proper loss in expectation cannot improve their outcome by post-processing a perfectly calibrated predictor. Hu and Wu (FOCS'24) use this to define an approximate calibration measure called calibration decision loss ($\mathsf{CDL}$), which measures the ...
Parikshit Gopalan, Konstantinos Stavropoulos, Kunal Talwar, Pranay Tankala   +3 more
openaire   +2 more sources

Absolute efficiency calibration of a coaxial HPGe detector for quantitative PGAA and T-PGAA

Journal of Physics: Conference Series, 2018
Following international guidelines by the IEEE and a well-established calibration procedure developed at the Hungarian Institute of Isotopes in Budapest, the experimental absolute efficiency calibration of an Ortec n-type coaxial high-purity germanium ...
A. Parmentier, L. Arcidiacono, R. Senesi, Giovanni Romanelli, C. Andreani, J. Moir, G. Festa   +6 more
semanticscholar   +1 more source

Effect of Scintillation Cocktail and Quenching Calibration Method on Measurement of 55Fe by LSC

He huaxue yu fangshe huaxue
In order to optimize the measurement conditions of 55Fe by liquid scintillation counting, the effect of three kinds of commercial scintillation cocktail and two efficiency correction methods on LSC measurements of 55Fe was tested.
MA Li-na, DAI Xiong-xin, ZHANG Hui, MA Yan, SONG Li-juan   +4 more
doaj   +1 more source