Results 31 to 40 of about 13,336 (205)

Gaia: segmented germanium detector for high-energy X-ray fluorescence and spectroscopic imaging. [PDF]

open access: yesJ Synchrotron Radiat
We present Gaia, a cryogenically cooled monolithic array of 96 high‐purity germanium pixel detectors integrated with a custom low‐noise application‐specific integrated circuit and a field‐programmable gate array‐based data acquisition system. The system achieves an average energy resolution of 711 eV at 122 keV and 253 eV at 5.89 keV, and serves as the
Rumaiz AK   +15 more
europepmc   +2 more sources

Assessment of the inactive dead layer thickness of old high-purity germanium detector: A study by Monte Carlo simulations and experimental verification

open access: yesRadiation Protection and Environment, 2017
High-purity germanium (HPGe) detectors are commonly used for high-resolution gamma spectrometry. A HPGe detector considered for this study was in continuous operation for the past 15 years in our laboratory.
Narayani Krishnan   +3 more
doaj   +1 more source

Ratio of spectral averaged cross sections measured in standard 252Cf(sf) and 235U(nth,f) neutron fields [PDF]

open access: yesEPJ Web of Conferences, 2020
The results of systematic evaluations of spectrum averaged cross section (SACS) measurements in the fission neutron fields of 252Cf and 235U are presented.
Schulc Martin   +5 more
doaj   +1 more source

True coincidence summing corrections in HPGe detectors

open access: yesHNPS Advances in Nuclear Physics, 2023
The true coincidence effect is studied in two High Purity Germanium (HPGe) detectors for a variety of isotopes, source geometries and source to detector configurations, via computational tools based on Monte–Carlo simulations. Τhe upgraded patch of MCNP code MCNP–CP and the 2018 version of PENELOPE, which take into account the decay scheme of each ...
Anastasia Milioni   +4 more
openaire   +1 more source

Simulation study of signal readout for multi-electrode high purity germanium detector

open access: yesHe jishu
BackgroundDue to high energy resolution and position sensitivity features, the multi-electrode high purity germanium (M-HPGe) detector is widely applied in rare event physics for events extraction.PurposeThis study aims to make use of pulse shape in M ...
YANG Jingzhe   +7 more
doaj   +1 more source

Modeling the impact of uncertainty in detector specification on efficiency values of a HPGe detector using ANGLE software [PDF]

open access: yesNuclear Technology and Radiation Protection, 2013
The objective of this study is to model the impact of uncertainties in the engineering specifications of a typical p-type HPGe detector on the efficiency values when the measured soil sample is in contact geometry with the detector.
Miller Maurice, Voutchkov Mitko
doaj   +1 more source

Uncertainties of calculated coincidence-summing correction factors in gamma-ray spectrometry [PDF]

open access: yesEPJ Web of Conferences, 2020
Uncertainty propagation to the γ-γ coincidence-summing correction factor from the covariances of the nuclear data and detection efficiencies have been formulated.
Semkova V., Otuka N., Plompen A.J.M.
doaj   +1 more source

Simulation study on transient temperature field characteristics of HPGe detectors simulated by the COMSOL method

open access: yesHe jishu
BackgroundHigh-purity Ge (HPGe) detectors are widely used in nuclear science, technology, and national defense because of their excellent energy resolution capability, which enables them to fingerprint gamma rays and accurately determine nuclide types ...
QUE Ziang   +5 more
doaj   +1 more source

Precision measurement of radioactivity in gamma-rays spectrometry using two HPGe detectors (BEGe-6530 and GC0818-7600SL models) comparison techniques: Application to the soil measurement

open access: yesMethodsX, 2017
To obtain high quality of results in gamma spectrometry, it is necessary to select the best HPGe detector for particular measurements, to calibrate energy and efficiency of gamma detector as accurate as possible.
Guembou Shouop Cebastien Joel   +7 more
doaj   +1 more source

Development of portable HPGe spectrometer for in situ measurements [PDF]

open access: yesNuclear Technology and Radiation Protection, 2015
In situ applications require a very high level of portability of high-resolution spectrometric equipment. Usage of HPGe detectors for radioactivity measurements in the environment or for nuclear safeguard applications, to combat illicit ...
Kail Artjoms   +4 more
doaj   +1 more source

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