Results 101 to 110 of about 3,515 (225)
The 40K‐K dating system: 1. Improving data interpretation using new model calculations
Meteoritics &Planetary Science, EarlyView.Abstract The 40K‐K cosmic‐ray exposure (CRE) dating system offers a promising method for determining exposure ages of iron meteorites by combining the radioactive cosmogenic 40K with the stable cosmogenic isotopes 39K and 41K. However, earlier applications relied on semi‐empirical production models and inconsistent analytical data sets, limiting their ...
Farshid Nozarian +2 more
wiley +1 more source
Radiation Protection and EnvironmentThis paper presents a deterministic neutron transport model developed for analyzing nuclear reactor criticality and shielding problems in the three-dimensional Cartesian geometry.
Kondala Rao Rupa, A. Jasmin Sudha
doaj +1 more source
Meteoritics &Planetary Science, EarlyView.Abstract We present the first micrometer‐scale, phase‐resolved compositional characterization of impact melt glass from the Hapcheon crater (~1.4 km apparent diameter), the first confirmed impact structure on the Korean Peninsula, integrating EPMA‐WDS (5 μm spot), confocal Raman spectroscopy (<1 μm spot), XRD, and 40Ar/39Ar step‐heating geochronology ...
Jin‐Young Lee +2 more
wiley +1 more source
Medical Physics, Volume 53, Issue 9, September 2026.Abstract Background Boron Neutron Capture Therapy (BNCT) utilizes high linear energy transfer (LET) charged particles from the 10B(n,α)7Li reaction to selectively destroy tumor cells. Unlike conventional radiation therapy, BNCT facilities rely on fixed beam ports, making patient positioning critical in treatment planning.
Yoonho Na +5 more
wiley +1 more source
Development and Validation of 3D Core Physics Code STORK Based on GPU Acceleration
Yuanzineng kexue jishuA 3D neutron transport computational code, STORK, has been developed based on a small-scale multi-GPU computing platform, utilizing the coupled approach of the two-dimensional full-core layer-by-layer transport calculation by the method of ...
YU Lulin1, YANG Gaosheng2, CHEN Guohua1, BEI Hua2, JIANG Xiaofeng1, GAO Mingmin2, WANG Tao1
doaj +1 more source
Plant, Cell &Environment, Volume 49, Issue 9, Page 6748-6764, September 2026.ABSTRACT Global warming and increasing water scarcity pose major challenges to agriculture, emphasising the need to translate stress‐biology insights into the development of drought‐resilient cultivars. In this study, we evaluated a panel of six diverse sorghum (Sorghum bicolour) accessions grown under field‐imposed drought conditions in central ...
Li'ang Yu +9 more
wiley +1 more source
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 +2 more
wiley +1 more source
Monte carlo assessment of advanced shielding materials for space‐efficient radiotherapy vault design
Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.Abstract Background Conventional radiotherapy vault shielding typically employs 2 to 3 meters of ordinary concrete, consistent with NCRP Report 151 reference data. While NCRP 151 specifies dose‐based design goals rather than mandating particular materials, the practical default of concrete results in vault footprints of 150 to 200 m2 per linac, which ...
Beechui Koo +6 more
wiley +1 more source
Development of BERMUDA, a radiation transport code system, Part I; Neutron transport codes
Development of BERMUDA, a radiation transport code system, Part I; Neutron transport codes核融合炉遮蔽ベンチマーク実験の解析,一般の原子炉施設等の高精度の遮蔽計算を行うコードシステムの完成を目標に、その計算手法の基礎を確立するため、1~3次元の各典型的形状に対する放射線輸送コードシステムBERMUDAを開発した。本コードシステムでは直接積分法と、エネルギーに関する多群モデルを組合わせて定常状態での輸送方程式を数値的に解き、中性子、ガンマ線、あるいは随伴中性子の各線束の空間、角度、エネルギー分布を求めている。コードの適用性テストはFNSを用いて行ったベンチマーク実験の解析によって行った。本報告書の第I部では、4個の中性子輸送コードBERMUDA-1DN、同-2DN、同-2DN-S16及び同-3DNの使用マニュアルとして、計算法、適用性検討結果、群定数ライブラリー ...
openaire
Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.Abstract Aim Current radiotherapy (RT) guidelines for Cardiac Implantable Electronic Devices (CIEDs) are largely based on clinical management strategies and retrospective reports. This systematic review adopts a medical physics perspective to provide a critical, quantitative analysis of the technical evidence required for developing robust safety ...
Tiziana Malatesta +15 more
wiley +1 more source