Results 51 to 60 of about 5,690 (213)

Calculation of the performance of 3He alternative detectors with MCNPX [PDF]

2011 2nd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications, 2011
This paper describes the techniques that are available to calculate the performance of 3He alternative detectors using MCNPX. Calculations of the performance of safeguards detectors that use 3He have been successfully carried out for many years. In the case of coincidence or multiplicity counting, specific tallies have been implemented to calculate the
Swinhoe, Martyn T. Los Alamos National Laboratory, Hendricks, John S. Los Alamos National Laboratory   +1 more
openaire   +1 more source

Mechanical properties, elastic moduli, transmission factors, and gamma-ray-shielding performances of Bi2O3–P2O5–B2O3–V2O5 quaternary glass system

Open Chemistry, 2022
Mechanical properties, elastic moduli, transmission factors (TFs), and gamma-ray shielding performance of quaternary glass systems with chemical composition (0.25−x)Bi2O3–xB2O3−0.75(50%P2O5−50%V2O5), where x = 0.05 (S1), 0.10 (S2), 0.15 (S3), and 0.20 ...
Tekin Huseyin Ozan, ALMisned Ghada, Rammah Yasser Saad, Susoy Gulfem, Ali Fatema T., Sen Baykal Duygu, Zakaly Hesham M. H., Issa Shams A. M., Ene Antoaneta   +8 more
doaj   +1 more source

Verification of the use of GEANT4 and MCNPX Monte Carlo Codes for Calculations of the Depth-Dose Distributions in Water for the Proton Therapy of Eye Tumours

Nukleonika, 2014
Verification of calculations of the depth-dose distributions in water, using GEANT4 (version of 4.9.3) and MCNPX (version of 2.7.0) Monte Carlo codes, was performed for the scatterer-phantom system used in the dosimetry measurements in the proton therapy
Grządziel Małgorzata, Konefał Adam, Zipper Wiktor, Pietrzak Robert, Bzymek Ewelina   +4 more
doaj   +1 more source

MCNPX Improvements for Threat Reduction Applications

AIP Conference Proceedings, 2009
Enhancements contained in the current MCNPX 2.6.0 Radiation Safety Information Computational Center (RSICC) release will be presented, including stopped‐muon physics, delayed neutron and photon generation, and automatic generation of source photons. Preliminary benchmarking comparisons with data taken with a muon beam at the Paul Scherrer Institute ...
Laurie S. Waters, Joe W. Durkee, Jay S. Elson, Ernst I. Esch, Michael L. Fensin, John S. Hendricks, Shannon T. Holloway, Michael R. James, Andrew Jason, Russell C. Johns, M. William Johnson, Toshihiko Kawano, Gregg W. McKinney, Peter Moller, Denise B. Pelowitz, Floyd D. McDaniel, Barney L. Doyle   +16 more
openaire   +2 more sources

Shielding features of concrete types containing sepiolite mineral: Comprehensive study on experimental, XCOM and MCNPX results

Results in Physics, 2018
Natural sepiolite mineral is a naturally occurring clay form belonging to a part of layered silicate. Because of its advantages such as low production cost, light-weight and convenient, it may be selected as an alternative shielding material to others ...
M. Sayyed, H. O. Tekin, O. Kilicoglu, O. Agar, M. Zaid   +4 more
semanticscholar   +1 more source

Evaluation of gamma rays shielding competence for bentonite clay /PVA polymer matrix using MCNPX code

, 2020
Radiation shielding capability in terms of mass and linear attenuation coefficients, half value layer, tenth value layer, and mean free path haven been evaluated for natural bentonite coated by polyvinyl alcohol polymer (PVA) using Monte Carlo simulation
F. Sallam, I. Hager, Y. Rammah, H. Othman, E. Ibrahim, S. Hassan, Zakaria Ahmed   +6 more
semanticscholar   +1 more source

Initial study of regolith exposure ages and burial conditions on Ryugu: Cosmogenic nuclides score in two touchdowns

Meteoritics &Planetary Science, Volume 61, Issue 4, Page 565-579, April 2026.
Abstract Surface processes on the asteroid Ryugu have been investigated using cosmic‐ray‐produced radionuclides, 10Be, 26Al, and 36Cl, and stable noble gases, on eight samples returned by the Hayabusa2 spacecraft. The 10Be and 26Al along with 21Ne measurements indicate that the two Chamber A samples A0105 collected during the first touchdown (TD) were ...
Kunihiko Nishiizumi, Keisuke Nagao, Marc W. Caffee, Ryuji Okazaki, Jozef Masarik, Hisayoshi Yurimoto, Tomoki Nakamura, Takaaki Noguchi, Hiroshi Naraoka, Hikaru Yabuta, Kanako Sakamoto, Kasumi Yogata, Toru Yada, Shogo Tachibana, Sei‐ichiro Watanabe, Yuichi Tsuda, Masanao Abe, Kazuya Kumagai, Akiko Miyazaki, Aiko Nakato, Satoru Nakazawa, Masahiro Nishimura, Tatsuaki Okada, Takanao Saiki, Hirotaka Sawada, Satoshi Tanaka, Tomohiro Usui, Koji Wada, Hajime Yano, Makoto Yoshikawa, Hayabusa2 Initial Analysis Volatile Team   +30 more
wiley   +1 more source

MCNPX simulation of proton dose distributions in a water phantom

Biomedical Journal, 2015
This study presents the Monte Carlo N-Particles Transport Code, Extension (MCNPX) simulation of proton dose distributions in a water phantom.In this study, fluence and dose distributions from an incident proton pencil beam were calculated as a function of depth in a water phantom. Moreover, lateral dose distributions were also studied to understand the
Chung-Chi, Lee, Yun-Jing, Lee, Shih-Kuan, Chen, Bing-Hao, Chiang, Chuan-Jong, Tung, Tsi-Chian, Chao   +5 more
openaire   +2 more sources

MCNPX benchmark for cosmic ray interactions with the Moon [PDF]

Journal of Geophysical Research: Planets, 2006
The MCNPX radiation transport code is used to simulate cosmic ray interactions within the Moon. Accurate source, geometric, and physics models are developed to successfully benchmark neutron density results with Apollo 17 measurements. The peak of the MCNPX lunar neutron density profile is shown to be within a few percent of the measured value, using a
G. W. McKinney, D. J. Lawrence, T. H. Prettyman, R. C. Elphic, W. C. Feldman, J. J. Hagerty   +5 more
openaire   +1 more source

Coral‐Like Yolk–Shell‐Structured CoNi@Void@C Microspheres for Enhanced Microwave Absorption, Photothermal, Anti‐Corrosion, and Radiation Shielding Properties

Rare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Considering the multiple challenges faced by stealth coatings in complex service environments, the development of multifunctional integrated microwave absorbing materials (MAMs) that combine efficient electromagnetic (EM) attenuation with environmental tolerance has become an urgent need. In this work, coral‐like CoNi@Void@C microparticle (MP)
Jiale Wu, Kaizhao Wang, Kaijun Wang, Hyeona Park, Jangyeon Hwang, Junkai Li, Yafei Wang, Jin Hu, Shizhao Xiong   +8 more
wiley   +1 more source