Results 71 to 80 of about 144,387 (227)
Quasi-real-time range monitoring by in-beam PET: a case for 15O
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]
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
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
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
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
Paper describing positron annihilation in coal ...
Fernandez, J., Hall, P.J.
core +3 more sources
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]
Modified adiabatic scattering function applied to positron annihilation in ...
Drachman, R. J.
core
Positron-electron annihilation momentum transfer to trapped deuterons
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
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

