نتایج جستجو برای: germanium radiation detector
تعداد نتایج: 297473 فیلتر نتایج به سال:
background: natural radionuclides are always present in the environment. human exposure to the background radiation is inevitable. it is therefore important to assess health risk associated with these radionuclides. materials and methods: the distribution of natural radionuclides 238u, 232th and 40k in soil samples collected from all the twenty (20) local governments headquarter areas in ogun s...
Introduction: The present study investigated the relatively high concentrations of natural radionuclides in raw material that used in ceramic manufacturing, and estimated the occupational exposure due to these activity concentrations. Material and Methods: A high-purity Germanium detector was used to determine naturally occurring radionuclide...
Typically, germanium detectors designed to have good sensitivity to low-energy photons and good efficiency at high energies are constructed from n-type crystals with a boron-implanted outer contact. These detectors usually exhibit inferior resolution and peak shape compared to ones made from p-type crystals. To overcome the resolution and peak-shape deficiencies, a new method of construction of...
A Sellmeier dispersion and phase-matching data are presented for generation of widely tunable efficient THz radiation by employing difference-frequency-mixing technique in zinc germanium diphosphide crystal. The computed data explain excellently the available experimental results.
In this paper we describe the development, testing, and characterization of three low-emission rate AmLi neutron sources. The sources are used to calibrate nuclear recoil response LUX-ZEPLIN (LZ) dark matter experiment. sources' emission was measured using $^{3}$He proportional tubes. gamma emissions were characterized a high-purity germanium (HPGe) detector. Source-validated GEANT4 Monte Carlo...
In-beam gamma-ray and electron spectroscopy have been widely used as tools to study the broad variety of phenomena in nuclear structure. The SPEDE spectrometer is a new device to be used in conjunction with the MINIBALL germanium detector array to enable the detection of internal conversion electrons in coincidence with gamma rays from de-exciting nuclei in radioactive ion beam experiments at t...
a reconnaissance study has been made on the distribution of 238u, 232th, 40k, 137cs andgeochemical features in soil and sediment samples at various locations on the coast of bushehr in the persiangulf. in this study a gamma-ray spectrometer based on a high purity germanium detector and a pc basedmca and x-ray fluorescence (xrf) method were used. estimation of the measured radionuclide contentha...
Related Articles A new detector for mass spectrometry: Direct detection of low energy ions using a multi-pixel photon counter Rev. Sci. Instrum. 83, 013304 (2012) A transport-based model of material trends in nonproportionality of scintillators J. Appl. Phys. 109, 123716 (2011) A digital method for separation and reconstruction of pile-up events in germanium detectors Rev. Sci. Instrum. 81, 103...
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