Results 81 to 90 of about 20,226 (218)

CI chondrite Oued Chebeika 002 links asteroids Bennu and Ryugu to common parent body

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract CI chondrites are a compositionally primitive group of meteorites that have undergone extensive aqueous alteration, providing insights into the evolution of primitive planetesimals. Oued Chebeika 002 is the most pristine CI chondrite to date.
Megan Broussard   +11 more
wiley   +1 more source

A next-generation inverse-geometry spallation-driven ultracold neutron source

open access: yes, 2019
The physics model of a next-generation spallation-driven high-current ultracold neutron (UCN) source capable of delivering an extracted UCN rate of around an-order-of-magnitude higher than the strongest proposed sources, and around three-orders-of ...
A. R. Young   +14 more
core   +1 more source

Ryugu Reference Project: Recommendations from the Measurement Definition Team

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama   +16 more
wiley   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

8-inch nano-polycrystalline hBN for neutron radiography

open access: yesPhotoniX
Boron-based scintillators have attracted significant attention due to their high thermal neutron capture cross-section. However, large-area pure boron-based scintillators remain unexplored.
Siqi Zhu   +11 more
doaj   +1 more source

High-Efficiency Thermal Neutron Detector Based on Boron-Lined Multi-Wire Proportional Chamber

open access: yesApplied Sciences
The global shortage of 3He resources has created an urgent need for alternative neutron detection technologies in applications such as national security, neutron scattering, and nuclear energy.
Pengwei Meng   +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

Laser Engineering of HfN‐Based Nanoparticles for Safe NIR‐I Photothermal and X‐ray Enhancing Cancer Therapies

open access: yesAdvanced Functional Materials, Volume 36, Issue 36, 4 May 2026.
In this study, we produced HfN‐based nanoparticles via femtosecond laser ablation in acetone. The nanoparticles exhibit a red‐shifted plasmonic resonance in the NIR‐I window, colloidal stability after coating with polyethyleneglycol, and excellent biocompatibility. The photothermal and X‐ray sensitization therapeutic effects were demonstrated for tumor
Julia S. Babkova   +15 more
wiley   +1 more source

A study of the electromagnetic fields leakage in TM020 mode HOM-damped cavity

open access: yesNuclear Engineering and Technology
Radiofrequency cavities are crucial components in synchrotron light sources, providing beam energy replenishment and accelerating voltage. TM020 mode cavities offer superior performance compared to conventional TM010 cavities, exhibiting a higher quality
Xuerui Hao   +9 more
doaj   +1 more source

Generic guide concepts for the European Spallation Source

open access: yes, 2015
The construction of the European Spallation Source (ESS) faces many challenges from the neutron beam transport point of view: The spallation source is specified as being driven by a 5 MW beam of protons, each with 2 GeV energy, and yet the requirements ...
Bentley, P. M.   +2 more
core   +1 more source

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