Results 151 to 160 of about 1,794 (181)
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‘Universal’ representation of HPGe detector efficiencies
Radiation Measurements, 2016Abstract By fitting a simple 4-parameter function to twelve sets of HPGe detector efficiency measurements, an approximate ‘universal’ expression good to ±15% is obtained for HPGe absolute full-energy-peak efficiencies as a function of photon energy between ∼125 and ∼1750 keV for a ∼4-to-1 range of crystal volumes and for coaxial and planar crystal ...
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Precise modeling of a coaxial HPGe detector
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1999Abstract Measured spatial dependence of the full energy peak efficiency for point sources in the region of photon energies from 60 to 1115 keV was analyzed using the GEANT system. A systematic iteration procedure was developed for the fine geometric modeling of the HPGe detector structure.
S. Ashrafi, A. Likar, T. Vidmar
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Optimization of Electrically Cooled Complex HPGe Detector
2012 Sixth UKSim/AMSS European Symposium on Computer Modeling and Simulation, 2012This article presents a novel technique used for design and optimization of a composite HPGe detector with two or three encapsulated Ge-crystals and based on electromechanical cooling engine. In this technique is accentuated on the detailed investigation of the heat transfer processes -- each one separately and in complex, and their impact on the ...
Ivan Kojouharov +4 more
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The simulation studies of PC-HPGe detector
2011 IEEE Nuclear Science Symposium Conference Record, 2011Having the merits of low capacitance and low energy threshold, PC-HPGe (Point-Contact High Purity Germanium) detector has been proposed for the direct WIMP (Weakly Interacting Massive Particle) searches in CDEX (China Dark matter Experiment), which is located in CJPL (China Jing Ping underground Laboratory) with a rock overburden of about 2400 m ...
Zifeng Lv +5 more
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The virtual point detector concept for HPGe planar and semi-planar detectors
Applied Radiation and Isotopes, 2006The virtual point detector assumption was validated for planar and semi-planar detectors. The distance of the virtual point detector from the detector face is larger than the thickness of the detector, which means that the virtual detector position is outside the volume of the detector.
Z B, Alfassi, O, Pelled, U, German
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Analysis of HPGe-detector relative photopeak efficiency
Il Nuovo Cimento A, 1995The dependence of the HPGe-detector efficiency on its intrinsic and geometrical properties such as energy resolution, electronic noise, charge production statistics and effect of the rise time is considered. This study also includes the detector's sensitive volume.
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HPGe Detector Efficiency Calibration Using HEU Standards
2000The Analytical Development Section of SRTC was requested by the Facilities Disposition Division (FDD) to determine the holdup of enriched uranium in the 321-M facility as part of an overall deactivation project of the facility. The 321-M facility was used to fabricate enriched uranium fuel assemblies, lithium-aluminum target tubes, neptunium assemblies,
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A Multi-Point Contact HPGe Detector
IEEE Transactions on Nuclear Science, 2014Michael P. Dion +7 more
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FADC electronics design for HPGe detector
2013 IEEE Nuclear Science Symposium and Medical Imaging Conference (2013 NSS/MIC), 2013openaire +1 more source
A low-power biomimetic collision detector based on an in-memory molybdenum disulfide photodetector
Nature Electronics, 2020Darsith Jayachandran +2 more
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