Charge and Mass Measurements of a Dust Particle in the Linear Quadrupole Trap

2016 ◽  
Vol 56 (5) ◽  
pp. 419-424 ◽  
Author(s):  
R. A. Syrovatka ◽  
L. V. Deputatova ◽  
V. S. Fiinov ◽  
D. S. Lapitsky ◽  
V. Ya. Pecherkin ◽  
...  
Keyword(s):  
Dust Particle ◽  
Mass Measurements ◽  
Quadrupole Trap ◽  
Linear Quadrupole Trap

scholarly journals Optical Interrogation of Single Levitated Droplets in a Linear Quadrupole Trap by Cavity Ring-Down Spectroscopy

2020 ◽  
Author(s):  
Antonio Valenzuela ◽  
Fenghong Chu ◽  
Allen E. Haddrell ◽  
Michael I. Cotterell ◽  
Jim S. Walker ◽  
...  
Keyword(s):  
Cavity Ring Down Spectroscopy ◽  
Quadrupole Trap ◽  
Levitated Droplets ◽  
Linear Quadrupole Trap ◽  
Cavity Ring Down

Trapping, retention and laser cooling of Th3+ ions in a multisection linear quadrupole trap

2017 ◽  
Vol 47 (5) ◽  
pp. 406-411 ◽  
Author(s):  
P V Borisyuk ◽  
O S Vasil'ev ◽  
S P Derevyashkin ◽  
N N Kolachevsky ◽  
Yu Yu Lebedinskii ◽  
...  
Keyword(s):  
Laser Cooling ◽  
Quadrupole Trap ◽  
Linear Quadrupole Trap

Direct measurement of micromotion speed in a linear quadrupole trap

2010 ◽  
Vol 108 (1) ◽  
pp. 013108 ◽  
Author(s):  
B. Wang ◽  
J. W. Zhang ◽  
Z. H. Lu ◽  
L. J. Wang
Keyword(s):  
Direct Measurement ◽  
Quadrupole Trap ◽  
Linear Quadrupole Trap

Time resolved laser-induced fluorescence of electrosprayed ions confined in a linear quadrupole trap

2004 ◽  
Vol 75 (11) ◽  
pp. 4511-4515 ◽  
Author(s):  
Jochen Friedrich ◽  
Jinmei Fu ◽  
Christopher L. Hendrickson ◽  
Alan G. Marshall ◽  
Yi-Sheng Wang
Keyword(s):  
Laser Induced Fluorescence ◽  
Time Resolved ◽  
Quadrupole Trap ◽  
Linear Quadrupole Trap

Radial mass analysis of unstained STEM images of molluscan hemocyanins

1990 ◽  
Vol 48 (3) ◽  
pp. 810-811
Author(s):  
M.G. Hamilton ◽  
T.T. Herskovits ◽  
J.S. Wall
Keyword(s):  
Image Analysis ◽  
Hollow Cylinder ◽  
Electron Micrographs ◽  
Side View ◽  
Mass Analysis ◽  
Mass Measurements ◽  
Electron Microscopic ◽  
Transmission Electron ◽  
Transmission Electron Microscopic ◽  
Microscopic Studies

The hemocyanins of molluscs are aggregates of a cylindrical decameric subparticle that assembles into di-, tri-, tetra-, penta-, and larger multi-decameric particles with masses that are multiples of the 4.4 Md decamer. Electron micrographs of these hemocyanins typically show the particles with two profiles: circular representing the cylinder viewed from the end and rectangular representing the side-view of the hollow cylinder.The model proposed by Mellema and Klug from image analysis of a didecameric hemocyanin with the two decamers facing one another with collar (closed) ends outward fits the appearance of side-views of the negatively-stained cylinders. These authors also suggested that there might be caps at the ends. In one of a series of transmission electron microscopic studies of molluscan hemocyanins, Siezen and Van Bruggen supported the Mellema-Klug model, but stated that they had never observed a cap component. With STEM we have tested the end cap hypothesis by direct mass measurements across the end-views of unstained particles.

scholarly journals Revisiting the Analysis of the Isochronous Mass Measurements of Uranium Fission Fragments at the ESR

2020 ◽  
Vol 227 ◽  
pp. 02012
Author(s):  
R. S. Sidhu ◽  
R. J. Chen ◽  
Yu. A Litvinov ◽  
Y. H. Zhang ◽  
Keyword(s):  
Experimental Data ◽  
Data Analysis ◽  
State Of The Art ◽  
Fission Products ◽  
Mass Measurements ◽  
Fission Fragments ◽  
Uranium Fission

The re-analysis of experimental data on mass measurements of ura- nium fission products obtained at the ESR in 2002 is discussed. State-of-the-art data analysis procedures developed for such measurements are employed.

scholarly journals Rheology of rounded mammalian cells over continuous high-frequencies

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Gotthold Fläschner ◽  
Cosmin I. Roman ◽  
Nico Strohmeyer ◽  
David Martinez-Martin ◽  
Daniel J. Müller
Keyword(s):  
High Frequency ◽  
Mammalian Cells ◽  
Mechanical Response ◽  
Cell Mass ◽  
Low Frequency ◽  
Mass Measurements ◽  
High Frequencies ◽  
Polymer Relaxation ◽  
Continuous Frequency ◽  
Rheological Experiments

AbstractUnderstanding the viscoelastic properties of living cells and their relation to cell state and morphology remains challenging. Low-frequency mechanical perturbations have contributed considerably to the understanding, yet higher frequencies promise to elucidate the link between cellular and molecular properties, such as polymer relaxation and monomer reaction kinetics. Here, we introduce an assay, that uses an actuated microcantilever to confine a single, rounded cell on a second microcantilever, which measures the cell mechanical response across a continuous frequency range ≈ 1–40 kHz. Cell mass measurements and optical microscopy are co-implemented. The fast, high-frequency measurements are applied to rheologically monitor cellular stiffening. We find that the rheology of rounded HeLa cells obeys a cytoskeleton-dependent power-law, similar to spread cells. Cell size and viscoelasticity are uncorrelated, which contrasts an assumption based on the Laplace law. Together with the presented theory of mechanical de-embedding, our assay is generally applicable to other rheological experiments.

scholarly journals Kinematic focus point method for particle mass measurements in missing energy events

2019 ◽  
Vol 2019 (10) ◽  
Author(s):  
Doojin Kim ◽  
Konstantin T. Matchev ◽  
Prasanth Shyamsundar
Keyword(s):  
Point Method ◽  
Particle Mass ◽  
Missing Energy ◽  
Mass Measurements ◽  
Focus Point

Dust particle charging and formation of dust structures in the upper atmosphere

JETP Letters ◽  
2000 ◽  
Vol 72 (7) ◽  
pp. 364-368 ◽  
Author(s):  
B. A. Klumov ◽  
S. I. Popel ◽  
R. Bingham
Keyword(s):  
Dust Particle ◽  
Upper Atmosphere ◽  
Particle Charging
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