Results 111 to 120 of about 186,250 (297)

Unveiling a Bulk WTaV Multicomponent Alloy With Superior Thermal Properties and Manufacturability

open access: yesAdvanced Science, EarlyView.
ABSTRACT Many tungsten (W)‐based medium and high entropy alloys (HEA) demonstrate superior microstructural stability and enhanced mechanical properties as compared to pure W, effectively rendering them as viable candidate materials for extreme environments such as nuclear fusion, aerospace applications, and so on.
Ishtiaque K. Robin   +11 more
wiley   +1 more source

Intensity of the neutron component of cosmic rays and air humidity

open access: yesSolar-Terrestrial Physics
Neutron monitor data is currently corrected only for the barometric effect. We cannot, however, exclude that changes in air humidity affect the intensity of the cosmic-ray neutron component recorded by neutron monitors.
Yanchukovsky V. L.   +2 more
doaj   +1 more source

Neutron spectral measurements in the upper atmosphere [PDF]

open access: yes, 1972
An experiment to measure neutrons in the upper atmosphere was performed on a balloon flight from Palestine, Texas, at an altitude of about 32 km. The experimental arrangement is discussed briefly, and results of a preliminary analysis of the data for ...
Delorenzo, J. T.   +3 more
core   +1 more source

Tracking fast neutrons

open access: yes, 2013
Based on elastic collisions, the linear momentum of a fast neutron can be measured from as few as two consecutive recoil ion tracks plus the vertex position of the third collision, or `two and half' ion tracks.
Morris, Christopher L., Wang, Zhehui
core   +1 more source

Tunable Negative Thermal Expansion in Fe/Cr‐Substituted Nd2Co17 Compounds via Magnetoelastic Coupling

open access: yesAdvanced Science, EarlyView.
This study achieves anisotropic thermal expansion tuning in Nd2(Co1‐xFex)17‐yCry compounds via a magnetoelastic strategy. Variable‐temperature synchrotron X‐ray diffraction reveals that increased Fe content induces switchable lattice responses. Compositional control reduces the volume expansion coefficient αV by 20% (x═0.7) and modulates TC (442–625 K),
Jiayuan Li   +8 more
wiley   +1 more source

First research of nickel-lithium-hydrogen teplogenerator reactions in Kyiv

open access: yesЯдерна фізика та енергетика, 2019
The first observations of the heat release reaction in the nickel-lithium-hydrogen mixture of the A. Rossi heat generator were carried out at the Institute for Nuclear Research of the National Academy of Sciences of Ukraine. The presence of this reaction
V. A. Pshenichnyi   +8 more
doaj   +1 more source

NEUTRON RICH NUCLEI AND NEUTRON STARS [PDF]

open access: yesFission and Properties of Neutron-Rich Nuclei, 2013
The PREX experiment at Jefferson Laboratory measures the neutron radius of 208Pb with parity violating electron scattering in a way that is free from most strong interaction uncertainties. The 208Pb radius has important implications for neutron rich matter and the structure of neutron stars.
openaire   +2 more sources

Photonuclear Population of 229m,gTh in Th‐Doped Crystals Toward Nuclear Clock Development

open access: yesAdvanced Science, EarlyView.
This study demonstrates a novel photonuclear approach for producing the nuclear clock isomer 229mTh in thorium‐doped crystals, overcoming current supply limitations. Through cross‐section calculations and Monte Carlo simulations, we identify optimal crystal materials and irradiation conditions, achieving high signal‐to‐noise ratios.
Hao‐Yang Lan   +9 more
wiley   +1 more source

Design and Characterization of the Modified Purdue Subcritical Pile for Nuclear Research Applications

open access: yesInstruments
First demonstrated in 1942, subcritical and zero-power critical assemblies, also known as piles, are a fundamental tool for research and education at universities.
Matthew Niichel   +6 more
doaj   +1 more source

Startup of the High-Intensity Ultracold Neutron Source at the Paul Scherrer Institute

open access: yes, 2012
Ultracold neutrons (UCN) can be stored in suitable bottles and observed for several hundreds of seconds. Therefore UCN can be used to study in detail the fundamental properties of the neutron.
AP Serebrov   +13 more
core   +1 more source

Home - About - Disclaimer - Privacy