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Maxed unfolding code

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Web1 feb. 2014 · The code UMESTRAT (Unfolding Maximum Entropy STRATegy) is developed to apply this new strategy in a semi-automatic mode. The proposed approach gives also an indirect evaluation of the DRF consistency with the actual measurement accuracy by providing additional information on the DRF model and error. Web1 jul. 2024 · The Gravel and MAXED deconvolution codes have been applied to reconstruct the neutron spectrum of the DT NG. Both methods use a default, a priori, spectrum for …

Deconvolution of neutron spectrum for a DT neutron generator …

WebThe program MAXED applies the maximum entropy principle to the unfolding problem, and the program GRAVEL uses a modified SAND-II algorithm to do the unfolding. There are two versions of each: MXD_FC33 and GRV_FC33 for "few-channel" unfolding (e.g., Bonner … Web1 dec. 2024 · Unfolding typically requires that Eq. (1) is represented in a discretised form, with the flux in the j th energy channel, Φ j, and the response, R i, j, shown in Eq. (2): (2) Z 0 i = ∑ j = 1 n R i, j Φ j j = 1, 2, …, n This gives a set of equations with m reaction channels and a neutron spectrum with n energy channels. fern britton strictly come dancing

Spectrum unfolding in X-ray spectrometry using the maximum …

WebThe uncertainty calculation is handled in the following way: given a solution spectrum generated by MAXED, the program IQU considers variations in the measured data and in the default spectrum and uses standard Methods to do sensitivity analysis and uncertainty propagation. There are two versions: IQU F C33 for 'few-channel' unfolding and IQU M ... WebSpectrum unfolding, sensitivity analysis and propagation of uncertainties with the maximum entropy deconvolution code MAXED Reginatto, Marcel ; Goldhagen, Paul ; Neumann, Sonja MAXED was developed to apply the maximum entropy principle to the unfolding of neutron spectrometric measurements. Web1 nov. 2024 · MAXED unfolding code has been used in order to reconstruct the default spectrum which is calculated by MCNP5. This initial reconstruction result will be used as criterion for selection of additional appropriate reaction and optimization of strategies of sample irradiation and γ -ray counting. Keywords Multi-foil activation method fern britton new man

Propagation of uncertainties in unfolding procedures - ResearchGate

Neutron spectrum unfolding for the development of a …

WebProccedings of the ISSSD 2012 ISBN 978-607-00-6167-7 70 Unfolding Code for Neutron Spectrometry Based on Neural Nets Technology J.M. Ortiz-Rodríguez1/*,H.R. Vega-Carrillo2, 1Unidad Académica de Ingeniería Eléctrica, Universidad Autónoma de Zacatecas, Zacatecas, 98000, México 2Unidad Académica de Estudios Nucleares, Universidad … Web11 feb. 2011 · The two-step unfolding method consists on using the MAXED code in two different ways as follows: (a) To check whether the parameterization used in NUBAY was adequate by examining and modifying the features of the NUBAY output neutron spectrum that are not in agreement with the passive BSS measurements. (b) fern britton the newcomerhttp://www.lnf.infn.it/acceleratori/public/nescofi/archive/publications/Radiat%20Prot%20Dosimetry-2014-Barros-rpd_nct353.pdf fern britton phillip schofield

"Web„Few channel‟ unfolding codes based on linear least-squares methods, with the constraint of non-negative particle fluence, are widely used for this purpose. BUNKI code, originally developed at the Naval Research Laboratory, USA, in 1983, is an example of unfolding code, which uses this approach [Lowry & Johnson 1984; Matzke 2002; Thomas " - Maxed unfolding code

Maxed unfolding code

Optimization of MAXED input parameters with applications to the ...

Web1 jun. 1998 · The main features of the code MAXED, a computer program developed to apply the maximum entropy principle to the deconvolution (unfolding) of …

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Web14 mei 2007 · An investigation of the simultaneous unfolding of data from neutron spectrometers using the UMG codes MAXED and GRAVEL has been performed. This approach involves combining the data from the spectrometers before unfolding, thereby performing a single combined unfolding of all the data to yield a final combined spectrum. Webthat used to obtain neutron spectra by unfolding pulse height spectra. The differences are: firstly, an LS-signature is unfolded instead of a pulse height spectrum; and secondly the pulse height response matrix is replaced by the P-matrix. The Bayesian unfolding code MAXED(4) was used to unfold LS-signatures derived

WebThis work compares the results of four different unfolding codes, MSANDB, MAXED, FRUIT and BONMA, which are based on different unfolding techniques. Additionally, … Web1 jan. 2002 · This method is implemented in MAXED (MAXimum Entropy Deconvolution), a software code contained in the package UMG (Unfolding with MAXED and …

Web1 aug. 2004 · MAXED was developed as an unfolding code for neutron spectra at the Environmental Measurements Laboratory, US Department of Energy. From the … Web2 aug. 2007 · For the calibration measure- (1) control. The Bayesian unfolding code MAXED ments the phantom was removed from the neutron was used to determine the neutron energy spectra beam and data were taken in air with either the from pulse height spectra measured by the scintil- NE230 scintillator or a reference detector (NE213 lation …

Web14 mei 2007 · Investigation of combined unfolding of neutron spectra using the UMG unfolding codes Radiation Protection Dosimetry Oxford Academic Abstract. An …

Web4 Figure 2: The quality value, q, as a function of number of counts for three different unfolding techniques, namely MAXED (black), GRAVEL (green) and MAXED-L (red). Left panel for MPR and right panel for NE213. Figure 3: Left frame: Curves of the average q values for 100 MAXED unfolded spectra for a number of target χ2 values as a function of … fern britton youngWeblow. At JET, the maximum entropy deconvolution code MAXED [5] has been used for the NE213 data unfolding, and the MFR was introduced in order to confirm these results independently [6]. Originally, MFR has been applied in plasma tomography [7] where the relation between the measured line integrals and unknown local emissivities is … fernbrook athletic fields complex mnWebSpectrum unfolding, sensitivity analysis and propagation of uncertainties with the maximum entropy deconvolution code MAXED Reginatto, Marcel ; Goldhagen, Paul ; Neumann, … fernbrook apartments maple grove mnWeb1 jul. 2024 · The Gravel and MAXED unfolding codes have been applied in our study. The impact of different values of deconvolution parameters has been examined. The impact … fern britton\u0027s daughter grace jonesWeb1 sep. 2024 · The experimental results have been applied to neutron spectrum unfolding methodologies: MAXED based on the maximum entropy method, and GRAVEL an … fernbrook bio limitedWebThe main features of the code MAXED, a computer program developed to apply the maximum entropy principle to the deconvolution (unfolding) of multisphere neutron … fernbrook bio rothwellWebMAXED MAXED is an unfolding code which, given a default spectrum (i.e. an initial estimate of the spectrum), selects a solution spectrum using the maximum entropy principle(3,4). The default spectrum used for the unfolding with MAXED was the spectrum estimated using Bayesian parameter estimation (described above). Response function delhi to kedarnath bus route