Results 1 to 10 of about 17,127 (187)

Performance analysis and dead layer profiling of a carbon-fiber encapsulated p-type HPGe detector [PDF]

open access: yesScientific Reports
Accurate geometry-dependent efficiency calibration of High-Purity Germanium (HPGe) detectors is critical for the applications in low radiation level $$\gamma$$ -spectrometry, rare decay studies, and assessments of environmental radioactivity.
Soni Devi   +3 more
doaj   +2 more sources

Monte Carlo simulation of HPGe gamma-spectrometry systems [PDF]

open access: yesThe Journal of Engineering, 2019
In order to obtain the relationship between energy and channel, the suitable radionuclides are chosen to calibrate. The result shows a goodness of fitting.
Dongjie Hou   +4 more
doaj   +2 more sources

A novel HPGe-BGO pair spectrometer

open access: yesEPJ Techniques and Instrumentation
We report on a novel design for a HPGe-BGO pair spectrometer with the aim to enhance the performance of existing HPGe detectors for high-energy γ-rays. In addition, the BGO shield as a standalone detector allows for a use with the selective detection of ...
Ilja Homm   +16 more
doaj   +2 more sources

Developing a remote gamma-ray spectra collection system (RGSCS) by coupling a high purity Germanium (HPGe) detector with a cosmicguard background reduction device [PDF]

open access: yesHardwareX
Despite being widely used for high-resolution spectral analysis and quantifying low activity in natural samples, the operations and data analysis of High Purity Germanium (HPGe) gamma-ray detectors are seldom fully automated due to the excessive costs ...
Zaijing Sun   +2 more
doaj   +2 more sources

Sediment Radioactivity Levels of Deep-Water Fishery Grounds in Antalya Bay

open access: yesAquatic Sciences and Engineering, 2021
To evaluate the radiological load of the fisheries ground sediments of deep-water areas in the Antalya Bay, 226Ra, 232Th, 40K and 137Cs activity concentration levels were measured with the Gamma Spectroscopy technique using a HighResolution Germanium ...
Süleyman Fatih Özmen, Olgaç Güven
doaj   +1 more source

Efficiency stability of HPGe detectors under distinct count rates

open access: yesBrazilian Journal of Radiation Sciences, 2021
In this work the reproducibility of the efficiency of different HPGe detectors was analyzed under a series of different conditions. The detectors studied were plugged either to a regular analogical amplifier or to a digital signal processing (DSP) device,
Guilherme Soares Zahn   +1 more
doaj   +1 more source

Development of an environmental monitoring station for HPGe detectors

open access: yesBrazilian Journal of Radiation Sciences, 2021
Neutron Activation Analysis (NAA) is a well-established nondestructive analytic technique where the gamma radiation emitted by an irradiated sample is analyzed using an HPGe detector.
Gleiser Rodrigues de Melo   +3 more
doaj   +1 more source

A new technique for quick identification of defective region inside γ-ray detector [PDF]

open access: yesEPJ Web of Conferences, 2023
The γ-ray detection efficiency of a detector decreases over time due to factors like radiation damage or an increase in the thickness of the inactive dead layer.
Das Biswajit   +7 more
doaj   +1 more source

Calibration of HPGe–HPGe coincidence spectrometer through performing standardisation of 125I activity by X-ray-gamma coincidence spectrometry using two HPGe detectors [PDF]

open access: yesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2018
Abstract An X-ray-gamma coincidence measurement method for efficiency calibration of a HPGe–HPGe system, using the methodology for activity standardisation of  125 I, has been developed. By taking one list-mode time-stamped measurement of the  125 I source, six spectra were generated in post-processing: total spectra, coincidence spectra and energy ...
Marković, Nikola   +4 more
openaire   +2 more sources

Emergency unmanned airborne spectrometric (HPGe) monitoring system

open access: yesApplied Radiation and Isotopes, 2023
After a nuclear or radiation event, emergency responders and radiation protection authorities need quick and credible information based on reliable accident and post-accident radiological data. However, risks to people in the vicinity of the source pose serious measurement challenges.
Jan Rusňák   +5 more
openaire   +2 more sources

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