Results 41 to 50 of about 1,181 (179)

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

Gamma Shielding Experiment Simulation utilizing MCNPX Code

Journal of Engineering Science, 2021
Experimental investigation requires materials, radiation sources, and test arrangements with a high monetary financial plan. Furthermore, radiation exposure involves people during the experiment.
Shafiqul Islam Faisal, Abi Muttaquin Bin Jalal Bayar   +1 more
doaj   +1 more source

مقاله پژوهشی: تعیین بیشترین میزان فعالیت مجاز چشمۀ میله‌ای کبالت‌ـ60 برای وجه‌های کاربردی مختلف در داخل اتاقک سربی [PDF]

فیزیک کاربردی ایران, 2020
محصورسازی چشمه‌های تابش یکی از مهمترین روش‌های کنترل خطرات بهداشت محیط برای جلوگیری از آسیب‌‌‌رسانی به انسآن‌هاست. معمولاً از اتاقک سربی با دیوارهایی از آجر سربی برای محصورسازی چشمه‌های دارای خطر پرتوزایی متوسط و کم استفاده می‌شود.
رضا باقری, میکائیل یگانه   +1 more
doaj   +1 more source

Assessment of the usability conditions of Sb2O3–PbO–B2O3 glasses for shielding purposes in some medical radioisotope and a wide gamma-ray energy spectrum

Applied Rheology, 2022
We report some fundamental gamma-ray shielding properties and individual transmission factors (TFs) of five distinct glass samples with a nominal composition of xSb2O3·(40 − x)PbO·60B2O3·0.5CuO and (where; 0 ≤ x ≤ 40 mol%). Phy-X/PSD and MCNPX (version 2.
ALMisned Ghada, Sen Baykal Duygu, Kilic Gokhan, Susoy Gulfem, Zakaly Hesham M. H., Ene Antoaneta, Tekin Huseyin Ozan   +6 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

MCNPX Model/Table Comparison [PDF]

, 2003
MCNPX is a Monte Carlo N-Particle radiation transport code extending the capabilities of MCNP4C. As with MCNP, MCNPX uses nuclear data tables to transport neutrons, photons, and electrons. Unlike MCNP, MCNPX also uses (1) nuclear data tables to transport protons; (2) physics models to transport 30 additional particle types (deuterons, tritons, alphas ...
openaire   +2 more sources

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 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

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