GEANT4 simulations of the neutron beam characteristics for 9Be/7Li targets bombarded by the low energy protons

2021 ◽  
Vol 506 ◽  
pp. 8-14 ◽  
Author(s):  
Yu Lu ◽  
Zhao Xu ◽  
Lianxin Zhang ◽  
Zibang Wang ◽  
Taosheng Li ◽  
...  
Keyword(s):  
Neutron Beam ◽  
Low Energy ◽  
Beam Characteristics

Neutron beam characteristics from 50 MeV protons on beryllium using a continuously variable multi-leaf collimator

1983 ◽  
Vol 1 (1) ◽  
pp. 65-76 ◽  
Author(s):  
A. Brahme ◽  
J. Eenmaa ◽  
S. Lindbäck ◽  
A. Montelius ◽  
P. Wootton
Keyword(s):  
Neutron Beam ◽  
Multi Leaf Collimator ◽  
Beam Characteristics ◽  
Mev Protons

Evaluation of the Neutron Beam Characteristics for the Vertical-type Neutron Reflectometer at HANARO

2012 ◽  
Vol 62 (10) ◽  
pp. 1112-1123
Author(s):  
Jeong Soo LEE* ◽  
Ki Yeon KIM ◽  
Jaseung KOO
Keyword(s):  
Neutron Beam ◽  
Neutron Reflectometer ◽  
Beam Characteristics

Geant4 simulation of the n_TOF-EAR2 neutron beam: Characteristics and prospects

2016 ◽  
Vol 52 (4) ◽  
Author(s):  
J. Lerendegui-Marco ◽  
◽  
S. Lo Meo ◽  
C. Guerrero ◽  
M. A. Cortés-Giraldo ◽  
...  
Keyword(s):  
Neutron Beam ◽  
Geant4 Simulation ◽  
Beam Characteristics

Influence of the rf excitation on the low energy broad ion beam characteristics

1992 ◽  
Vol 63 (5) ◽  
pp. 3073-3077 ◽  
Author(s):  
J. Engemann ◽  
D. Korzec ◽  
K.‐P. Ningel ◽  
G. Zrnc
Keyword(s):  
Ion Beam ◽  
Low Energy ◽  
Rf Excitation ◽  
Beam Characteristics

On the Measurements of the Beam Characteristics of Low-Energy Accelerator

2019 ◽  
pp. 465-468
Author(s):  
Shuo Wang ◽  
Kuang Li ◽  
Shiwei Xu ◽  
Shaobo Ma ◽  
Han Chen ◽  
...  
Keyword(s):  
Low Energy ◽  
Beam Characteristics

scholarly journals A feasibility study on the use of phantoms with statistical lung masses for determining the uncertainty in the dose absorbed by the lung from broad beams of incident photons and neutrons

2017 ◽  
Vol 58 (3) ◽  
pp. 313-328 ◽  
Author(s):  
Atiyeh Ebrahimi Khankook ◽  
Hashem Miri Hakimabad ◽  
Laleh Rafat Motavalli
Keyword(s):  
Neutron Beam ◽  
Computational Models ◽  
Anatomical Variation ◽  
Absorbed Dose ◽  
High Energy ◽  
Low Energy ◽  
Radiological Protection ◽  
Energy Photon ◽  
Organ Volume ◽  
Photon Sources

Abstract Computational models of the human body have gradually become crucial in the evaluation of doses absorbed by organs. However, individuals may differ considerably in terms of organ size and shape. In this study, the authors sought to determine the energy-dependent standard deviations due to lung size of the dose absorbed by the lung during external photon and neutron beam exposures. One hundred lungs with different masses were prepared and located in an adult male International Commission on Radiological Protection (ICRP) reference phantom. Calculations were performed using the Monte Carlo N-particle code version 5 (MCNP5). Variation in the lung mass caused great uncertainty: ~90% for low-energy broad parallel photon beams. However, for high-energy photons, the lung-absorbed dose dependency on the anatomical variation was reduced to <1%. In addition, the results obtained indicated that the discrepancy in the lung-absorbed dose varied from 0.6% to 8% for neutron beam exposure. Consequently, the relationship between absorbed dose and organ volume was found to be significant for low-energy photon sources, whereas for higher energy photon sources the organ-absorbed dose was independent of the organ volume. In the case of neutron beam exposure, the maximum discrepancy (of 8%) occurred in the energy range between 0.1 and 5 MeV.

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