Results 71 to 80 of about 120,796 (261)

Study on Focusing High Current Electron Beams with Quadrupole Magnets in LIA

open access: yesYuanzineng kexue jishu, 2023
Aimed to obtain small-sized beam spots, the focusing characteristics of high current electron beams generated by linear induction accelerators (LIA) with the quadrupole magnets were studied in this paper. The main factors which influence the minimum beam
JING Xiaobing;WANG Yi;YANG Zhiyong;SHI Jinshui
doaj   +1 more source

Lipid Nanoparticle Co‐Delivery of mRNA and a Small Molecule Drug for Oral Cancer Chemoimmunotherapy

open access: yesAdvanced Materials, EarlyView.
Co‐encapsulation of p53 mRNA and the small molecule ciclopirox within a lipid nanoparticle yields an all‐in‐one chemoimmunotherapy for oral squamous cell carcinoma. The platform engages caspase‐driven apoptosis in cancer cells while repolarizing tumor‐associated macrophages, achieving tumor reduction in both p53‐susceptible and p53‐resistant models and
Marshall S. Padilla   +15 more
wiley   +1 more source

Research on Automatic Tuning of Quadurpole Mass Resolution in Quadurpole-Liner Ion Trap Tandem Mass Spectrometry

open access: yesZhipu Xuebao
In order to achieve quadrupole mass resolution and precision automatic tuning of a radial excitation mode quadrupole ion trap tandem mass spectrometer, a set of algorithms was developed that can freely set the target peak width at half maximum and ...
Xing-yu ZHAO   +7 more
doaj   +1 more source

Exact cancellation of emittance growth due to coupled transverse dynamics in solenoids and rf couplers

open access: yesPhysical Review Accelerators and Beams, 2018
Weak, rotated magnetic and radio frequency quadrupole fields in electron guns and injectors can couple the beam’s horizontal with vertical motion, introduce correlations between otherwise orthogonal transverse momenta, and reduce the beam brightness ...
David H. Dowell   +2 more
doaj   +1 more source

Kinetic energy in the collective quadrupole Hamiltonian from the experimental data

open access: yesPhysics Letters B, 2017
Dependence of the kinetic energy term of the collective nuclear Hamiltonian on collective momentum is considered. It is shown that the fourth order in collective momentum term of the collective quadrupole Hamiltonian generates a sizable effect on the ...
R.V. Jolos, E.A. Kolganova
doaj   +1 more source

Fast beam-based alignment using ac excitations

open access: yesPhysical Review Accelerators and Beams, 2020
Standard quadrupole beam-based alignment (BBA) techniques rely on orbit data and on the sequential variation of quadrupole and orbit corrector magnets (OCM).
Zeus Martí   +3 more
doaj   +1 more source

Quadrupole-quadrupole forces in cerium metal

open access: yes, 2018
The specific heat of cerium shows an anomalous peak at about 12°K. The peak is too sharp to be accounted for by the splitting of the ground level by the electrostatic field of the crystal. In this thesis an attempt has been made to explain the peak by proposing a model which approximates the metal as a hexagonal close packed array of multipoles ...
openaire   +3 more sources

High‐Power Rapid Laser‐Induced Synthesis of Multi‐functional Cobalt Metal‐Organic Framework With an Unprecedented Synthesis Efficiency

open access: yesAdvanced Materials Technologies, EarlyView.
Laser‐assisted synthesis enables rapid (within 1 h) and high‐yield (≥90%) production of Co‐MOFs with mesoporous structures, tunable magnetic and optical properties, and efficient adsorption of N2, CH4, and CO2 for low‐energy gas separation. DFT calculations elucidate the electronic structure and adsorption behavior.
Saliha Mutlu   +10 more
wiley   +1 more source

Quadrupole magnets for the SSC

open access: yesIEEE Transactions on Applied Superconductivity, 1993
The authors have designed, constructed, and tested four short (1-m) models and six full-size (5-m) models of the Superconducting Super Collider (SSC) main-ring 5-m focusing quadrupole magnet (211 T/m). The results of this program are summarized. The magnet construction, test procedures, and test results are discussed.
Lietzke, A.   +12 more
openaire   +3 more sources

Strong Photoluminescence Enhancement in All‐Dielectric Ge Thin Film Metasurfaces for Integration on the Si Platform

open access: yesAdvanced Optical Materials, EarlyView.
Germanium (Ge) all‐dielectric metasurfaces can be leveraged to strongly enhance the radiative emission from Ge layers grown on silicon‐on‐insulator substrates by industry‐standard processes. At room‐temperature, the narrowband photoluminescence (PL) intensity is enhanced by a factor ∼40× with respect to unstructured films.
Jon Schlipf   +6 more
wiley   +1 more source

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