Results 41 to 50 of about 1,794 (181)

PHITS Benchmarking for HPGe Detector Efficiency

Energy Procedia, 2017
Abstract Particle and Heavy Ion Transport code System (PHITS) validation for gamma-ray detector efficiency evaluation was performed. A coaxial type, 280 cm3 high-purity Ge (HPGe) detector efficiency that was measured in previous experiments and calculated by Cyltran and MCNP was simulated by PHITS Ver. 2.82.
Yoga Peryoga, Hiroshi Sagara, Tomooki Shiba   +2 more
openaire   +1 more source

Modeling and Verification of 1/f Noise Mechanisms in FAPbBr3 Single‐Crystal X‐Ray Detectors

Advanced Electronic Materials, EarlyView.
We demonstratethat surface‐trap‐induced carrier number fluctuations are the dominantmechanism in FAPbBr3 Schottky devices, a conclusion supported by thedistinct defect profiles revealed by Drive‐Level Capacitance Profiling (DLCP). Throughnoise contribution decomposition, it is found that the 1/f noise of thedetector is the key noise source affecting ...
Zhongyu Yang, Qingli Zhang, Yuting Liu, Binbin Liu, Zhiping Zheng, Guangda Niu, Ling Xu   +6 more
wiley   +1 more source

Radium Speciation in Simulated Digestive Biofluids: Insights from Electrospray Ionization Mass Spectrometry and Thermodynamic Modeling

Analysis &Sensing, EarlyView.
Electrospray ionization mass spectrometry (ESI‐MS) combined with thermodynamic modeling provides the first direct characterization of radium speciation in synthetic gastrointestinal biofluids. Free Ra2+ ions predominate with minimal protein binding and negligible EDTA complexation. Crown ethers enable effective Ra complexation.
Linus Holtmann, Tim Schmalz, Tobias Weissenborn, Felix Stäger, Beate Riebe, Clemens Walther   +5 more
wiley   +1 more source

Optimization of HPGe detector response using fast and reliable method [PDF]

Nuclear Technology and Radiation Protection, 2020
Safeguards system with high effectiveness and efficiency must comprise a set of measurements with capabilities satisfactory for the verification of nuclear materials. In this paper, we present key parameter measurements of detector modeling in a
El-Tayebany Rasha Ali, Hazzaa Mohamed Helmy, Shaban Sameh Elsayed, El Begawy Hekmat Mohammed   +3 more
doaj   +1 more source

Constraining solar hidden photons using HPGe detector [PDF]

Physics Letters B, 2013
In this Letter we report on the results of our search for photons from a U(1) gauge factor in the hidden sector of the full theory. With our experimental setup we observe the single spectrum in a HPGe detector arising as a result of the photoelectric-like absorption of hidden photons emitted from the Sun on germanium atoms inside the detector. The main
Horvat, Raul, Ljubičić, Ante, Kekez, Dalibor, Krečak, Zvonko, Krčmar, Milica   +4 more
openaire   +2 more sources

Under the Shade of a Coolabah Tree: A Second Cache of Tulas From the Boulia District, Western Queensland

Archaeology in Oceania, EarlyView.
ABSTRACT This paper reports on the excavation of a cache of stone artefacts, buried on the bank of a waterhole or ‘billabong’ in central western Queensland. This is an extremely rare find, and yet it is the second such site to be reported within less than a 10 km radius.
Yinika L. Perston, Lynley A. Wallis, Heather Burke, Lorna Bogdanek, Trevina Rogers, Justine Kemp   +5 more
wiley   +1 more source

Assessment of Soil Erosion Over Six Decades in a Long‐Term Experiment Using Fallout 137Cs and RUSLE: A South American Case Study

Land Degradation &Development, EarlyView.
ABSTRACT Soil erosion remains a major global concern affecting agricultural productivity and land sustainability. This study investigates the magnitude and variability of soil erosion in a long‐term experiment (LTE) established in 1963 in Colonia, Uruguay, aiming to compare the performance of the 137Cs tracer technique and the RUSLE model across ...
Marcos Tassano, Mirel Cabrera, Joan Gonzalez, Mario Perez‐Bidegain, Olivier Evrard, Kathrin Grahmann, J. Andrés Quincke   +6 more
wiley   +1 more source

Comparative study of precise measurements of natural radionuclides and radiation dose using in-situ and laboratory γ-ray spectroscopy techniques

Scientific Reports, 2018
In this study, in-situ and laboratory γ-ray spectroscopy techniques were compared to evaluate the activity concentration of natural radionuclides in soil.
N. M. Hassan, Y. J. Kim, J. Jang, B. U. Chang, J. S. Chae   +4 more
doaj   +1 more source

An extensive investigation on gamma ray shielding features of Pd/Ag-based alloys

Nuclear Engineering and Technology, 2019
A comprehensive study of photon interaction features has been made for some alloys containing Pd and Ag content to evaluate its possible use as alternative gamma radiations shielding material.
O. Agar, M.I. Sayyed, F. Akman, H.O. Tekin, M.R. Kaçal   +4 more
doaj   +1 more source

Study of Annealing the Damaged HPGe Detector

World Journal of Nuclear Science and Technology, 2021
High purity germanium detectors have important applications in many fields. Detector’s performance deteriorated significantly due to radiation of neutron. The annealing of damaged HPGe detector is expounded in this monograph. The experiment results indicate that raising the temperature to 70°C for five days, the restoration efficiency can reach 90%.
Jianyong Zhang, Xiaohu Mo, Xiao Cai
openaire   +2 more sources