Results 11 to 20 of about 619,631 (183)

Spark discharge coupled laser multicharged ion source [PDF]

Review of Scientific Instruments, 2015
A spark discharge is coupled to a laser multicharged ion source to enhance ion generation. The laser plasma triggers a spark discharge with electrodes located in front of the ablated target. For an aluminum target, the spark discharge results in significant enhancement in the generation of multicharged ions along with higher charge states than observed
Md. Haider A. Shaim, Hani E. Elsayed-Ali
openaire   +5 more sources

Carbon multicharged ion generation from laser-spark ion source [PDF]

Review of Scientific Instruments, 2019
Multicharged carbon ions are generated by using a laser-assisted spark-discharge ion source. A Q-switched Nd:YAG laser pulse (1064 nm, 7 ns, ≤ 4.5 × 109 W/cm2) focused onto the surface of a glassy carbon target results in its ablation. The spark-discharge (∼1.2 J energy, ∼1 µs duration) is initiated along the direction of the plume propagation between ...
Md. Mahmudur Rahman, Oguzhan Balki, Hani E. Elsayed-Ali   +2 more
openaire   +5 more sources

Characterization of N-Terminal Acetylated α-Hemoglobin Stabilizing Protein (AHSP) by Top-Down High-Resolution Mass Spectrometry From Human Preterm Newborns Oral Fluid. [PDF]

Rapid Commun Mass Spectrom
ABSTRACT Rationale Alpha‐hemoglobin stabilizing protein (AHSP) is an erythroid‐specific protein forming a stable complex with free α‐hemoglobin, but not with β‐hemoglobin or hemoglobin A (α2β2), thus preventing harmful aggregation of α‐hemoglobin during normal erythroid cell development and avoiding its pro‐oxidant activity.
Iavarone F, Tirone C, Fattore S, De Tomaso D, Menzella N, Vento G, Olianas A, Manconi B, Cabras T, Guadalupi G, Contini C, Boroumand M, Desiderio C, Muntiu A, Fiorita A, Fraschini M, Fanos V, Faa G, Messana I, Castagnola M.   +19 more
europepmc   +2 more sources

Encapsulated Non-Exchangeable Na⁺ Ions Determining the Upper Limit of Al Inclusion in FAU-A Multiscale Simulation. [PDF]

Angew Chem Int Ed Engl
DFT computation, AIMD simulations, machine learning, statistical analysis, and experimental characterization reveal that the upper limit of Al inclusion in FAU zeolite synthesized under hydrothermal conditions is determined by the encapsulated non‐exchangeable Na+ ions.
Dong Q, Zhang T, Zhang C, Zhang T, Du Y, Ma J, Li R, Qin B, Jiao H.   +8 more
europepmc   +2 more sources

HR-MS Analysis of the Covalent Binding of Edaravone to 5-Formylpyrimidine Bases and a DNA Oligonucleotide Containing a 5-Formylcytidine Residue. [PDF]

Rapid Commun Mass Spectrom
ABSTRACT Rationale Edaravone (EDA) is a radical scavenger and an antioxidant drug approved to treat amyotrophic lateral sclerosis and used as a research tool to explore treatment of neurodegenerative diseases and cancers. It is also a reactive agent, known as PMP (1‐phenyl‐3‐methyl‐5‐pyrazolone), used for the analysis of polysaccharides composition ...
Regnault R, Kouach M, Goossens L, Thuru X, Bailly C, Goossens JF.   +5 more
europepmc   +2 more sources

Stimuli-Responsive Aggregation-Induced Emission Materials for Tumor Theranostics: Design Strategies and Biomedical Applications. [PDF]

Small Sci
pH, enzyme, hypoxia/redox, temperature, and external trigger‐responsive AIE materials for tumor imaging and therapy. Smart‐responsive aggregation‐induced emission (AIE) materials have emerged as promising bio‐nanomaterials for tumor diagnosis and therapy due to their enhanced fluorescence in aggregated states, overcoming the aggregation‐caused ...
Xu Z, Kong D, Li X, Zhu M, Yan H, Zhang C, Wang X, Feng D, Du J.   +8 more
europepmc   +2 more sources

Experiments with crystal deflectors for high energy ion beams: Electromagnetic dissociation probability for well channeled ions

Physical Review Special Topics. Accelerators and Beams, 2013
The paper presents the current status with the use of the crystal defectors for high energy ion beams. The channeling properties of multicharged ions are discussed.
W. Scandale, A. M. Taratin, A. D. Kovalenko   +2 more
doaj   +1 more source

The ORNL ECR multicharged ion source [PDF]

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1985
Abstract A multicharged ion source based on electron cyclotron resonance (ECR) heating has been designed and built at ORNL. The ECR ion source, which is completely dedicated for atomic physics collisions studies, produces higher charge states and higher beam intensities than the present ORNL PIG multicharged ion source, and will thus permit study of ...
openaire   +1 more source

Nuclear-polarization effect to the hyperfine structure in heavy multicharged ions [PDF]

, 2003
We have investigated the correction to the hyperfine structure of heavy multicharged ions, which is connected with the nuclear-polarization effect caused by the unpaired bound electron.
Soff, G., Nefiodov, A.V., Plunien, G.
core   +1 more source

Two-cavity ECR source of multicharged ions

, 2020
The plasma density in ECR sources is limited by the cutoff plasma frequency, which prevents producing multicharged ions if one uses for plasma heating such low frequency microwaves as 2.45 GHz.
Dougar-Jabon V.D., Umnov A.M., Kondratov B.A.   +2 more
core   +1 more source