نتایج جستجو برای: gamma detector
تعداد نتایج: 178856 فیلتر نتایج به سال:
Patient-specific quality assurance for intensity-modulated radiation therapy (IMRT) dose verification is essential. The aim of this study is to provide a new method based on the relative error distribution by comparing the fluence map from the treatment planning system (TPS) and the incident fluence deconvolved from the electronic portal imaging device (EPID) images. This method is validated fo...
The use of modeling programs such as MCNP to predict the response of HPGe detectors is increasing in importance. Accurate simulation of germanium detectors to incident gamma rays relies on knowledge of the performance of the detector in different detector-source geometries. Two important performance parameters are the resolution and sensitivity. The resolution is the FWHM and FW.1M/FWHM ratio. ...
چکیده ندارد.
Background: Natural radionuclides in rock samples, primarily 238U (uranium), 232Th (thorium) and 40K (potassium), are the main source of radiation exposure to workers and general public and their measurement is of paramount importance from radiation protection point of view. Materials and Methods: Gamma spectrometry using HPGe detector was used to measure the radioactivity and assess the radiol...
Triton burnup studies have been performed in fusion experimental devices to evaluate the confinement performance of 3.5 MeV alpha particles. For this purpose, generation rate deuterium-tritium (D-T)-born 14 neutrons has measured using a scintillating fiber detector. The directionality detector provides excellent selectivity for neutrons; however, lack pulse–shape discrimination (PSD) capability...
This thesis extensively analyses the performance of an energy detector which iswidely employed to perform spectrum sensing in cognitive radio over different gener-alised channel models. In this analysis, both the average probability of detection andthe average area under the receiver operating characteristic curve (AUC) are derivedusing the probability density function of th...
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...
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