نتایج جستجو برای: nai tl detectors
تعداد نتایج: 42389 فیلتر نتایج به سال:
Anomalously high radiation counts were observed using several different Geiger-Mueller (GM) detectors as well as sodium iodide (NaI) detectors during electrolysis experiments with palladium cathodes in heavy water. These high radiation counts were often observed in codeposition experiments where palladium metal is deposited from a D2O solution onto a copper cathode in the presence of evolving d...
To obtain the characteristic information of unknown radionuclides by analyzing γ-energy spectrum a low-resolution detector, and to improve accuracy validity analysis overlapping weak peaks in spectrum, this paper we analyze NaI(Tl) detectors based on Boosted-Gold algorithm. A simulation model NaI(TI) detector is established using MCNPX, response matrix with dimension 201 × 200 obtained. The unf...
The surface $^{210}$Pb is one of the main background sources for dark-matter-search experiments using NaI(Tl) crystals, and its spectral features associated with beta-decay events energies less than 60 keV depends on depth distribution in an crystal. Therefore, we must understand profile to precisely model measurement low-energy region low-background experiment crystals. We estimate contaminati...
In this work, the growth of CsI(Tl) crystals as gamma detector was performed using vertical Bridgman method with Ca and Tm co-dopants. For evaluation of the growth crystals, X-Ray Diffraction (XRD), photoluminescence and thermoluminescence spectra as well as recorded gamma spectra were employed. In addition, the scintillation properties including energy resolution, scintillation decay time, abs...
High energy radiotherapy can produce contaminant neutrons through the photonuclear effect. Patients receiving external beam radiation therapy to the pelvis may have high-density hip prostheses. Metallic materials such as those in hip prostheses, often have high cross-sections for neutron interaction. In this study, Thackray (UK) prosthetic hips have been irradiated by 18 MV radiotherapy beams t...
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