Results 1 to 10 of about 6,177,903 (303)

Accurate calibration of thermophotovoltaic efficiency [PDF]

open access: yesPhotoniX, 2020
The new record efficiency in Thermophotovoltaics relies upon a highly reflective rear mirror. The excellent rear mirror boosts voltage by enhancing the luminescence extraction, and separately also reflects low energy photons, which would otherwise be ...
Zunaid Omair   +3 more
doaj   +2 more sources

Calibration of the light-flavour jet mistagging efficiency of the b-tagging algorithms with Z+jets events using 139  $$\textrm{fb}^{-1}$$ fb - 1 of ATLAS proton–proton collision data at $$\sqrt{s} = 13$$ s = 13  TeV [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
The identification of b-jets, referred to as b-tagging, is an important part of many physics analyses in the ATLAS experiment at the Large Hadron Collider and an accurate calibration of its performance is essential for high-quality physics results.
G. Aad   +2931 more
doaj   +2 more sources

Semiempirical Efficiency Calibration in Semiconductor HPGe Gamma-Ray Spectroscopy

open access: yesJournal of Spectroscopy, 2018
One of the main problems in quantitative gamma-ray spectroscopy is the determination of detection efficiency, for different energies, source-detector geometries, and composition of samples or sources.
Jelena Krneta Nikolić   +6 more
doaj   +2 more sources

Detection efficiency calibration of single-photon silicon avalanche photodiodes traceable using double attenuator technique. [PDF]

open access: yesJ Mod Opt, 2015
A highly accurate method for the determination of the detection efficiency of a silicon single-photon avalanche diode (Si-SPAD) is presented. This method is based on the comparison of the detected count rate of the Si-SPAD compared to the photon rate ...
López M, Hofer H, Kück S.
europepmc   +2 more sources

Design, manufacture, and quality control of a calibration standard source of gamma-ray spectrometry system with filter matrix [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2021
Identifying and measuring the radioactivity of airborne particles are a necessary and very important to recognize and estimate the effect of radioactive contamination on human health and the environment.
H. Ranjbar, A. Yousefi
doaj   +1 more source

Study on point source efficiency function of LaBr3(Ce) detector

open access: yesHe jishu, 2022
BackgroundWhen the relative position of the point source and the detector changes, the detection efficiency will also change. Determining the functional relationship of the detection efficiency with the alteration of the detection distance and angle is ...
YE Erlei   +4 more
doaj   +1 more source

Study on efficiency calibrating method of well-type γ ray spectrometer for soil samples

open access: yesHe jishu, 2021
BackgroundPutting samples into the well-type γ ray spectrometer can greatly improve the activity measurement efficiency, therefore it can reduce the measurement time and the mass of samples.PurposeThis study aims to accurately obtain detection ...
LAI Yongfang   +4 more
doaj   +1 more source

Efficiency calibration of a well-type HPGe detector using experimental and Monte Carlo simulation techniques [PDF]

open access: yesNuclear Technology and Radiation Protection, 2020
Well-type high-purity germanium detectors are well suited for the analysis of small samples, as they combine high detection efficiency with low background radiation. The well geometry however makes efficiency calibration more difficult than that
Dalaka Ekaterini   +3 more
doaj   +1 more source

Efficient scheduling to minimize calibrations [PDF]

open access: yesProceedings of the twenty-fifth annual ACM symposium on Parallelism in algorithms and architectures, 2013
Integrated Stockpile Evaluation (ISE) is a program to test nuclear weapons periodically. Tests are performed by machines that may require occasional calibration. These calibrations are expensive, so finding a schedule that minimizes calibrations allows more testing to be done for a given amount of money.This paper introduces a theoretical framework for
Michael A. Bender   +4 more
openaire   +1 more source

Efficiency calibration of lanthanum bromide scintillation detector and analysis of influencing factors of the detection efficiency

open access: yesHe jishu, 2021
BackgroundActive efficiency calibration of radiation detector requires the multiple standard radioactive sources with different energies, and the measurement condition of the standard sources need to be consistent with sample sources.
YANG Tibo   +5 more
doaj   +1 more source

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