Neutron spectrum unfolding based on generalized regression neural networks for neutron fluence and neutron ambient dose equivalent estimations

2019 ◽  
Vol 154 ◽  
pp. 108856
Author(s):  
Jie Wang ◽  
Zhirong Guo ◽  
Xianglei Chen ◽  
Yulin Zhou
Keyword(s):  
Neural Networks ◽  
Neutron Spectrum ◽  
Neutron Fluence ◽  
Dose Equivalent ◽  
Spectrum Unfolding ◽  
Generalized Regression Neural Networks ◽  
Ambient Dose Equivalent ◽  
Neutron Spectrum Unfolding ◽  
Generalized Regression ◽  
Ambient Dose

NEUTRON SPECTRUM UNFOLDING USING VARIOUS COMPUTER CODES: A COMPARISON

2021 ◽  
pp. 128-133
Author(s):  
Thiệm
Keyword(s):  
Neutron Spectrum ◽  
Neutron Fluence ◽  
Dose Equivalent ◽  
Spectrum Unfolding ◽  
Bonner Sphere ◽  
Ambient Dose Equivalent ◽  
Computer Codes ◽  
Neutron Spectrum Unfolding ◽  
Spectrometer System ◽  
Ambient Dose

Dosimetric quantities at various distances from a 30 cm diameter polyethylene sphere moderated 241Am-Be source were investigated using the Bonner sphere spectrometer system. The different international commercial unfolding codes were applied to unfold the neutron spectrum, and their shapes were compared to each other. Additionally, the integrated neutron fluence rates overall spectrum and fractional neutron fluence rates were deduced and compared between the results obtained from different unfolding codes. As an important quantity applying in radiation safety assessment, the neutron ambient dose equivalent rates were also calculated and compared to each other to verify the utility feasibilities of the codes.

A neutron spectrum unfolding code based on generalized regression artificial neural networks

2016 ◽  
Vol 117 ◽  
pp. 8-14 ◽  
Author(s):  
Ma. del Rosario Martinez-Blanco ◽  
Gerardo Ornelas-Vargas ◽  
Celina Lizeth Castañeda-Miranda ◽  
Luis Octavio Solís-Sánchez ◽  
Rodrigo Castañeda-Miranada ◽  
...  
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Neutron Spectrum ◽  
Spectrum Unfolding ◽  
Neutron Spectrum Unfolding ◽  
Artificial Neural ◽  
Generalized Regression

scholarly journals Synapse. A Neutron Spectrum Unfolding Code Based on Generalized Regression Artificial Neural Networks

2020 ◽  
Vol 7 (24) ◽  
pp. 166667
Author(s):  
Ma. Martinez-Blanco ◽  
Arturo Serrano-Muñoz ◽  
Hector Vega-Carrillo ◽  
Marco de Sousa-Lacerda ◽  
Roberto Mendez-Villafañe ◽  
...  
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Neutron Spectrum ◽  
Spectrum Unfolding ◽  
Neutron Spectrum Unfolding ◽  
Artificial Neural ◽  
Generalized Regression

A neutron spectrum unfolding computer code based on artificial neural networks

2014 ◽  
Vol 95 ◽  
pp. 428-431 ◽  
Author(s):  
J.M. Ortiz-Rodríguez ◽  
A. Reyes Alfaro ◽  
A. Reyes Haro ◽  
J.M. Cervantes Viramontes ◽  
H.R. Vega-Carrillo
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Neutron Spectrum ◽  
Computer Code ◽  
Spectrum Unfolding ◽  
Neutron Spectrum Unfolding ◽  
Artificial Neural

NSDann2BS, a neutron spectrum unfolding code based on neural networks technology and two bonner spheres

2013 ◽  
Author(s):  
J. M. Ortiz-Rodríguez ◽  
A. Reyes Alfaro ◽  
A. Reyes Haro ◽  
L. O. Solís Sánches ◽  
R. Castañeda Miranda ◽  
...  
Keyword(s):  
Neural Networks ◽  
Neutron Spectrum ◽  
Spectrum Unfolding ◽  
Neutron Spectrum Unfolding

Comparison of Unfolding Methods for Determining Neutron Spectrum and Ambient Dose Equivalent

2009 ◽  
Vol 168 (3) ◽  
pp. 610-614 ◽  
Author(s):  
Zhonglu Wang ◽  
Stephen F. Kry ◽  
Rebecca M. Howell ◽  
Mohammad Salehpour
Keyword(s):  
Neutron Spectrum ◽  
Dose Equivalent ◽  
Ambient Dose Equivalent ◽  
Ambient Dose

Evaluating the performance of two neutron spectrum unfolding codes based on iterative procedures and artificial neural networks

2013 ◽  
Author(s):  
J. M. Ortiz-Rodríguez ◽  
A. Reyes Alfaro ◽  
A. Reyes Haro ◽  
L. O. Solís Sánches ◽  
R. Castañeda Miranda ◽  
...  
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Neutron Spectrum ◽  
Spectrum Unfolding ◽  
Neutron Spectrum Unfolding ◽  
Artificial Neural ◽  
Iterative Procedures

TH-D-AUD A-02: Measurement of Neutron Spectrum and Ambient Dose Equivalent Around a Mini-Phantom at a Proton Therapy Facility

2008 ◽  
Vol 35 (6Part26) ◽  
pp. 2982-2982
Author(s):  
Z Wang ◽  
S Kry ◽  
E Burgett ◽  
R Howell ◽  
R Tailor ◽  
...  
Keyword(s):  
Neutron Spectrum ◽  
Proton Therapy ◽  
Dose Equivalent ◽  
Ambient Dose Equivalent ◽  
Ambient Dose ◽  
Proton Therapy Facility

scholarly journals Analysis of neutron streaming through penetrations in the JET biological shielding

2019 ◽  
Vol 22 ◽  
pp. 34
Author(s):  
I. E. Stamatelatos ◽  
T. Vasilopoulou ◽  
P. Batistoni ◽  
S. Conroy ◽  
B. Obryk ◽  
...  
Keyword(s):  
Design Methodology ◽  
Neutron Fluence ◽  
Radiation Shielding ◽  
Mcnp Code ◽  
Dose Equivalent ◽  
Toroidal Plasma ◽  
Monte Carlo Calculations ◽  
Ambient Dose Equivalent ◽  
Shielding Design ◽  
Ambient Dose

In the present work neutron streaming through large ducts and labyrinths of the Joint European Torus (JET) biological shielding was evaluated. Neutron fluence and ambient dose equivalent were calculated along the total length of the ducts. Monte Carlo calculations using the MCNP code were performed for both Deuterium-Deuterium (D-D) and Deuterium-Tritium (D-T) toroidal plasma discharge sources. The results of the calculations were compared against measurements performed using thermoluminescence detectors. This work contributes to the operational radiation protection effort to minimize collective radiation dose to personnel at JET and, moreover, provides important information from JET experience that may assist in the optimization and validation of the radiation shielding design methodology used in future fusion plants, such as ITER and DEMO.

Sign in / Sign up

Export Citation Format

Share Document