Results 71 to 80 of about 144,387 (227)

Quasi-real-time range monitoring by in-beam PET: a case for 15O

open access: yesScientific Reports, 2023
A fast and reliable range monitoring method is required to take full advantage of the high linear energy transfer provided by therapeutic ion beams like carbon and oxygen while minimizing damage to healthy tissue due to range uncertainties.
S. Purushothaman   +20 more
doaj   +1 more source

Positron Cooling and Annihilation in Noble Gases [PDF]

open access: yesPhysical Review Letters, 2017
Understanding the dynamics of positron cooling in gases, including the fraction of positrons surviving to thermalisation, is critical for accurate interpretation of positron lifetime spectra, for the development of efficient positron cooling in traps and accumulators, and for a cryogenically cooled, ultra-high-energy-resolution, trap-based positron ...
openaire   +4 more sources

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, Volume 28, Issue 17, 9 September 2026.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Rational design of Ni‐based catalysts for methane dry reforming: Recent advances and future perspectives

open access: yesFlexMat, Volume 3, Issue 3, Page 428-451, September 2026.
Addressing the challenges inherent in dry reforming of methane (DRM), this paper focuses on the structural design and performance optimization of Ni‐based catalysts. The modulation strategies for DRM are systematically reviewed across four dimensions: the micromorphology of active metals, metal‐support interactions, electronic modifications by ...
Bowei Cao, Junlei Zhang, Wanglei Wang
wiley   +1 more source

Quantification of 10B and 11B in Biological Samples in Translational Science and Clinical Applications for Boron Neutron Capture Therapy (BNCT)

open access: yesMedicinal Research Reviews, Volume 46, Issue 5, Page 1362-1389, September 2026.
ABSTRACT Boron neutron capture therapy (BNCT) is a targeted radiotherapy that exploits the selective accumulation of the 10B isotope within tumors, followed by irradiation with low‐energy neutrons to induce high linear energy transfer particles with short path lengths, resulting in localized tumor cell destruction while sparing surrounding healthy ...
Christoph Selg   +2 more
wiley   +1 more source

Positron annihilation in coal chars

open access: yes, 1999
Paper describing positron annihilation in coal ...
Fernandez, J., Hall, P.J.
core   +3 more sources

Emerging Metal–Organic Frameworks (MOFs): Synthesis, Bioactivities, Preservation, Active Packaging/Sensing System, and Future Perspectives for Seafood Applications

open access: yesJournal of Food Science, Volume 91, Issue 9, September 2026.
ABSTRACT Seafood is highly susceptible to rapid microbial proliferation, lipid oxidation, and volatile spoilage compound accumulation, resulting in rapid quality deterioration and food waste. Metal‐organic frameworks (MOFs), a class of crystalline coordination materials with tunable porosity, high surface area, and diverse metal‐ligand architectures ...
Abhishek Bisht   +3 more
wiley   +1 more source

Positron annihilation in helium [PDF]

open access: yes, 1966
Modified adiabatic scattering function applied to positron annihilation in ...
Drachman, R. J.
core  

Positron-electron annihilation momentum transfer to trapped deuterons

open access: yesAIP Advances, 2019
The probability of positron annihilation momentum transfer to a trapped deuteron is calculated based on neutron measurements from 2H(d,n)3He reactions in deuterated palladium thin films. Deuterium gas loading in Pd thin films creates a high D/Pd fraction
Ryan Weed   +4 more
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced 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

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