scholarly journals MICROPARTICLE SEPARATION IN A LINEAR PAUL TRAP

Author(s):  
Roman Syrovatka ◽  
Vladimir Filinov ◽  
Leonid Vasilyak ◽  
Vladimir Pecherkin ◽  
Lidiya Deputatova ◽  
...  

We investigated the charged micron-sized particle separation by the alternating electric field in a linear quadrupole electrodynamic trap in open air under standard atmospheric temperature and pressure conditions (STP). In experiments we varied the amplitude of the alternating voltage supplying the electrodynamic trap and used a mixture of charged glassy carbon and alumina particles. The carried out numerical simulations and experimental results showed the mutual influence of the amplitude and frequency of the supplied to the trap electrode voltage on the separation of the different sizes particles. The typical particle charges in simulations were approximately equal to experimentally measured values obtained in a corona discharge.

2008 ◽  
Vol 10 (1) ◽  
pp. 013004 ◽  
Author(s):  
G Huber ◽  
T Deuschle ◽  
W Schnitzler ◽  
R Reichle ◽  
K Singer ◽  
...  

2002 ◽  
Vol 80 (4) ◽  
pp. 443-454 ◽  
Author(s):  
J R Pardo ◽  
M Ridal ◽  
D Murtagh ◽  
J Cernicharo

The Odin satellite is equipped with millimetre and sub-millimetre receivers for observations of several molecular lines in the middle and upper atmosphere of our planet (~25–100 km, the particular altitude range depending on the species) for studies in dynamics, chemistry, and energy transfer in these regions. The same receivers are also used to observe molecules in outer space, this being the astrophysical share of the project. Among the atmospheric lines that can be observed, we find two corresponding to molecular oxygen (118.75 GHz and 487.25 GHz). These lines can be used for retrievals of the atmospheric temperature vertical profile. In this paper, we describe the radiative-transfer modeling for O2 in the middle and upper atmosphere that we will use as a basis for the retrieval algorithms. Two different observation modes have been planned for Odin, the three-channel operational mode and a high-resolution mode. The first one will determine the temperature and pressure on an operational basis using the oxygen line at 118.75 GHz, while the latter can be used for measurements of both O2 lines, during a small fraction of the total available time for aeronomy, aimed at checking the particular details of the radiative transfer near O2 lines at very high altitudes (>70 km). The Odin temperature measurements are expected to cover the altitude range ~30–90 km. PACS Nos.: 07.57Mj, 94.10Dy, 95.75Rs


2013 ◽  
Vol 20 (5) ◽  
pp. 055706 ◽  
Author(s):  
Erik P. Gilson ◽  
Ronald C. Davidson ◽  
Philip C. Efthimion ◽  
Richard Majeski ◽  
Edward A. Startsev ◽  
...  

1994 ◽  
Vol 14 (9) ◽  
pp. 237-241 ◽  
Author(s):  
A. Dudhia ◽  
N.J. Livesey ◽  
F.W. Taylor

2003 ◽  
Vol 31 (7) ◽  
pp. 477-481 ◽  
Author(s):  
Toshihiko MORI ◽  
Kenji TOYODA ◽  
Masayoshi WATANABE ◽  
Shinji URABE

2021 ◽  
Vol 2103 (1) ◽  
pp. 012222
Author(s):  
Olga Kokorina ◽  
Vadim Rybin ◽  
Semyon Rudyi

Abstract We propose a double-well linear Paul trap for particle’s spatial selection according to the charge-to-mass ratio. To perform spatial selection we implemented an experimental setup that permits to detect particles’ positions in the double-well trap from three different view-points: top, front left, and front right. The setup gives an opportunity to monitor the particles’ axial density distribution in real-time. We have shown a strong correlation between axial position of separated localization areas and the DC voltages applied to the rod and end-cap electrodes. We have experimentally determined the critical localization parameters where double-well mode acquires for all the trapped charged microparticles. According to the experimental data and a numerical simulation a upper value of charge-to-mass ratio of the trapped microparticles was estimated.


2018 ◽  
Vol 946 ◽  
pp. 012152
Author(s):  
D S Lapitsky ◽  
V S Filinov ◽  
V I Vladimirov ◽  
R A Syrovatka ◽  
L M Vasilyak ◽  
...  

2019 ◽  
Vol 46 (4) ◽  
pp. 138-142
Author(s):  
P. L. Sidorov ◽  
K. Yu. Khabarova ◽  
I. V. Zalivako ◽  
A. S. Borisenko ◽  
I. A. Semerikov

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