Results 21 to 30 of about 116,850 (264)

Experimental Study on Calibration of Radon Detector Using Uranium Mine Waste Rock

open access: yesJournal of Isotopes, 2023
Usually, radon detector must be calibrated every year, commonly used solid radon source calibration method and radon chamber calibration method. The former has the problems of radon source device aging, complex operation and radioactive substances ...
TIAN Xingyu;ZHANG Xiongjie;LI Wenyi;FENG Yangyang;HUANG Rengui
doaj   +1 more source

Impact of ATLAS electromagnetic calibration on precision measurements

open access: yesEPJ Web of Conferences, 2015
Since the discovery of the Higgs boson a lot of effort has been devoted to the measurement of its properties. One of its key parameter is its mass, which has been measured by the ATLAS detector at the LHC.
Becot Cyril
doaj   +2 more sources

A generalized mathematical model for efficiency calibration of gamma detectors: Application to practical cases [PDF]

open access: yesNuclear Technology and Radiation Protection, 2019
Efficiency calibration, i. e. determination of detection efficiency, εp, is a crucial issue in gamma spectrometry (quantification of gamma spectroscopic measurements) with semiconductor and scintillation detectors. Comparing three possible ways to
Mihaljević Nikola N.   +2 more
doaj   +1 more source

On-Orbit Relative Radiometric Calibration of the Night-Time Sensor of the LuoJia1-01 Satellite

open access: yesSensors, 2018
The LuoJia1-01 satellite can acquire high-resolution, high-sensitivity nighttime light data for night remote sensing applications. LuoJia1-01 is equipped with a 4-megapixel CMOS sensor composed of 2048 × 2048 unique detectors that record weak ...
Guo Zhang   +4 more
doaj   +1 more source

Band-Averaged Response Sensitivity Study of an Imaging Spectrometer for the CLARREO Pathfinder Mission

open access: yesRemote Sensing, 2022
Prelaunch absolute, SI-traceable radiometric calibration of satellite-based sensors is key to ensuring the utility of imaging spectrometer-based data products.
Fatholah Salehi   +4 more
doaj   +1 more source

SI Traceable Solar Spectral Irradiance Measurement Based on a Quantum Benchmark: A Prototype Design

open access: yesRemote Sensing, 2020
We propose a space benchmark sensor with onboard SI (Système International) traceability by means of quantum optical radiometry. Correlated photon pairs generated by spontaneous parametric down-conversion (SPDC) in nonlinear crystals are used to ...
Xiaobing Zheng   +6 more
doaj   +1 more source

Estimation of scattered radiation influence on neutron beams at a calibration laboratory using Monte Carlo simulation of a long counter

open access: yesBrazilian Journal of Radiation Sciences, 2023
At the Neutron Calibration Laboratory (LCN) of IPEN/CNEN, a 241AmBe source was used to test and calibrate neutron detectors. The neutrons emitted by the source reach the detector as intended, but they also scatter undesirably from the building's floor ...
Tallyson Sarmento Alvarenga   +4 more
doaj   +1 more source

Calibration strategy of the JUNO experiment

open access: yesJournal of High Energy Physics, 2021
We present the calibration strategy for the 20 kton liquid scintillator central detector of the Jiangmen Underground Neutrino Observatory (JUNO). By utilizing a comprehensive multiple-source and multiple-positional calibration program, in combination ...
The JUNO collaboration   +596 more
doaj   +1 more source

Calibration of flow cytometry detector systems [PDF]

open access: yesCytometry, 1981
AbstractA method of determining the relative intensity of the fluorescence signal measured by a fluorescence activated cell sorter is described. The calibration process is a multistep procedure, in which the signal gain due to the amplifier module is first evaluated, followed by determination of the photomultiplier response as a function of tube ...
openaire   +4 more sources

A 65 nm CMOS broadband self-calibrated power detector for the square kilometre array radio telescope

open access: yesThe Journal of Engineering, 2014
In this study, a 65 nm complementary metal oxide semiconductor (CMOS) broadband self-calibrated high-sensitivity power detector for use in the Square Kilometre Array (SKA), the next-generation high-sensitivity radio telescope, is presented.
Ge Wu   +2 more
doaj   +1 more source

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