Results 1 to 10 of about 16,330 (259)

MCNP certification package [PDF]

, 1992
In response to a Department of Energy (DOE) request, Westinghouse Savannah River Company committed to certify all computer codes used in critical calculations at the site. Since the Monte Carlo Neutron Photon Transport (MCNP) code will be used to perform critical analyses involving criticality and shielding, the code must be certified. Certification as
Trumble, E. F.
openaire   +3 more sources

Evaluation of RAPID for a UNF cask benchmark problem

EPJ Web of Conferences, 2017
This paper examines the accuracy and performance of the RAPID (Real-time Analysis for Particle transport and In-situ Detection) code system for the simulation of a used nuclear fuel (UNF) cask.
Mascolino Valerio, Haghighat Alireza, Roskoff Nathan J.   +2 more
doaj   +1 more source

Network‐wide assessment of soil water content calibration and sensitivity to biomass proxies using cosmic‐ray neutron sensing in the Roaring Fork Basin, Colorado

Vadose Zone Journal, Volume 25, Issue 3, May/June 2026.
Abstract Soil water content (SWC) is a key state variable of the climate system but is often uncertain in water balance monitoring, especially in alpine environments. SWC measurements can be challenging in alpine environments due to the topography and rocky soils.
Sophia M. Becker, Gwendolyn E. Davies, Trenton E. Franz, Tyler D. Lampard, Todd G. Caldwell   +4 more
wiley   +1 more source

New advances in the computational simulation of Aqueous Homogeneous Reactor for medical isotopes production

Brazilian Journal of Radiation Sciences, 2021
Aqueous Homogeneous Reactors (AHRs) or simply solution reactors present nowadays a promising alternative to produce medical isotopes, especially 99Mo. The AHR medical production concept has been proposed to produce medical isotopes directly in the fuel ...
Daniel Milian Pérez, Liván Hernández Pardo, Daylen Milian Pérez, Abel Gámez Rodríguez, Daniel Evelio Milian Lorenzo, Carlos Alberto Brayner de Oliveira Lira   +5 more
doaj   +1 more source

Direct Growth of Transparent Boron Nitride Neutron Shielding Layer for Space Window

Advanced Science, Volume 13, Issue 20, 9 April 2026.
Direct growth of sp2‐sp3 hybridized BN (HBN) on quartz, enabled by an h‐BN buffer, produces transparent and stable films up to 80 µm thick with high transmittance and strong neutron shielding, making HBN a promising candidate for space windows in long‐term lunar missions.
Dobin Kim, Geunpil Kim, Hwijoon Jeong, Sk Mujaffar Hossain, Satadeep Bhattacharjee, Minjae Isaac Kwon, Yeunjeong Lee, Chanhee Yang, Yeong Seok Ham, Taek‐Soo Kim, Hyowon Moon, Inkyu Park, Seung‐Cheol Lee, Jinhwan Kim, Jongbum Kim, Jaehyun Park   +15 more
wiley   +1 more source

Introducing an Optimized Computing Method to Improve Parallel-Hole Collimators’ Response in Nuclear Medicine [PDF]

مجله علوم و فنون هسته‌ای, 2019
Performance of parallel-hole collimators may be evaluated by determining their response to a point radioactive source which for instance, the amount of collimator resolution is calculated by measuring the full width at half maximum (FWHM) of point spread
V Moslemi, M Ashoor
doaj   +1 more source

Gamma Ray Shielding Study of Barium–Bismuth–Borosilicate Glasses as Transparent Shielding Materials using MCNP-4C Code, XCOM Program, and Available Experimental Data

, 2017
In this work, linear and mass attenuation coefficients, effective atomic number and electron density, mean free paths, and half value layer and 10 th value layer values of barium–bismuth–borosilicate glasses were obtained for 662 keV, 1,173 keV, and 1 ...
Reza Bagheri, A. K. Moghaddam, H. Yousefnia   +2 more
semanticscholar   +1 more source

Neutronic Evaluation of Using a Thorium Sulfate Solution in an Aqueous Homogeneous Reactor

Atom Indonesia, 2022
Radioisotope 99Mo is one of the most essential radioisotopes in nuclear medicine. Its production in an Aqueous Homogeneous Reactor (AHR) could be potentially advantageous compared to the traditional technology, based on target irradiation in a ...
D. Pérez, D. Milian, L. Hernández, A. Gámez, D. Lorenzo, C. Brayner   +5 more
doaj   +1 more source

New para‐hydrogen cold neutron source at the Budapest Research Reactor: Monte Carlo simulations

Journal of Applied Crystallography, Volume 59, Issue 2, Page 392-403, April 2026.
This paper explores the options for upgrading the cold neutron source at the Budapest Research Reactor.The planned upgrade of the neutron guide system at the Budapest Research Reactor (BRR) provides an opportunity to enhance the performance of its cold neutron source.
Dmitrii Shapiro, Petr Konik, Mina Akhyani, Alexander Ioffe   +3 more
wiley   +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