Results 51 to 60 of about 4,292 (208)

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

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 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

Determination of Gamma-Ray Shielding Parameters for Concretes and Dosimeters Using MCNPX [PDF]

, 2020
Gamma-ray shielding parameter for some concretes and dosimeters having large scale applications in radiological protection are presented using MCNPX (version 2.4.0) at different energies.
Tekin, Huseyin Ozan, Singh, V. P.
core   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, Volume 28, Issue 15, 5 August 2026.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 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

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

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

Study of CdTe detector response functions using different MCNPX computational modeling detailing

Brazilian Journal of Radiation Sciences
The spectra measured with cadmium telluride (CdTe) detectors show high spectral distortions that must be corrected by applying a mathematical algorithm along with the detector's response functions.
A. M. Antunes, B. M. Mendes, P. L. Squair, M. S. Nogueira, A. T. Almeida-Jr, M. A. S. Lacerda   +5 more
doaj   +1 more source

Medidas experimentais e simulação MCNPX para avaliar coeficiente de atenuação linear e mássico de catalisador ativado utilizado no processo de FCC.

Brazilian Journal of Radiation Sciences, 2020
O Craqueamento Catalítico Fluido (FCC) é um processo usado na indústria petroquímica para converter algumas frações de petróleo que são mais pesadas em frações mais leves, como gasolina e GLP, por exemplo.
Victor Hugo Farias Ferreira da Silva, Marcela Ferreira Marques de Oliveira, Carlos Costa Dantas, Milton Santos Viana, Tennyson Accetti Resende Filho, Whoody Alem Wanderley Araripe Farias, Silvio de Barros Melo, Fernando Roberto de Andrade Lima   +7 more
doaj   +1 more source