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نمایش تعداد 1-10 از 12
Improving the safety of a body composition analyser based on the PGNAA method
sources make them suitable for the prompt gamma neutron activation analysis
(PGNAA) method. The PGNAA method can be used in medicine for neutron
radiography and body chemical composition analysis. 252Cf and 241Am–
Be sources generate...
A quantitative PGNAA study for use in aqueous solution measurements using Am-Be neutron source and BGO scintillation detector
A prompt gamma neutron activation analysis (PGNAA) system including an Am–Be neutron source and BGO scintillation detector are used for quantitative analysis of bulk samples. Both Monte Carlo-simulated and experimental data are considered as input...
A quality survey on different shielding configurations of gamma ray detector used with a portable PGNAA system
The appropriate gamma-ray detector shielding configuration is critical for a precise prompt gamma neutron activation analysis (PGNAA) measurement. The shielding material has to prevent the radiation damage to the detector crystal and it must produce...
Noise reduction of PGNAA spectrum using empirical mode decomposition technique
Prompt gamma neutron activation analysis (PGNAA) is frequently used in on–line analysis of raw materials in cement and coal industries which normally incorporates bismuth germanate (BGO) or sodium iodide (NaI(Tl)) scintillators. The quantitative...
Shielding studies on a total-body neutron activation facility
Background: Prompt gamma neutron activation
analysis (PGNAA) is known as a non-invasive technique
capable of measuring elemental concentration in
voluminous samples in a short period of time. Also it is
a valuable...
Calculation of neutron self-shielding factor and its effect on estimating amount of sample matter in LS-PGNAA
LS-PGNAA(Large Sample Prompt Gamma Neutron Activation Analysis) is a noninvasive method for determination element fractions of large samples with an unknown homogeneous matrix composition .and when the sample is large, effects such as neutron self...
Utilization of 241Am-9Be Neutron Source in PGNAA Setup Used in Cement Raw Material Analysis
Activation Analysis (PGNAA), with 252Cf as the neutron source. Cost and short half-life of the 252Cf neutron sources are the main problems in cement industry. Therefore, a simulation study has been done to develop the setup geometry and investigate...
Reduction of the Gamma Dose Equivalent due to 252Cf and 241Am-Be Neutron Sources in the Patients Soft Tissues When Using Body Chemical Composition Analyzer Bed
-effective neutron sources for Prompt Gamma Neutron Activation Analysis (PGNAA). PGNAA method can be used in medicine for neutron radiography and body chemical composition analysis. Unfortunately 252Cf and 241Am-Be sources generate not only neutrons but also emit...
Experimental optimization of a landmine detection facility using PGNAA method
analysis (PGNAA) method considerably. In this work an 241Am-Be source was used in the moderator geometry for detecting buried landmines by PGNAA method. Experiments were done to find the best moderator geometry for the moderated 241Am-Be source...
Evaluation the nonlinear response function of a 3*3 in NaI scintillation detector for PGNAA applications
Response functions of the 3*3 in NaI detector, which is mainly used in PGNAA applications, have been calculated by using MCNP-4C code. Calculated results are compared with measured data by using standard g-ray sources and prompt g-rays from pure...