scholarly journals Precision measurement of transverse velocity distribution of a strontium atomic beam

AIP Advances ◽  
2014 ◽  
Vol 4 (2) ◽  
pp. 027118 ◽  
Author(s):  
F. Gao ◽  
H. Liu ◽  
P. Xu ◽  
X. Tian ◽  
Y. Wang ◽  
...  
Keyword(s):  
Velocity Distribution ◽  
Precision Measurement ◽  
Atomic Beam ◽  
Transverse Velocity

Measurements of the Ion Transverse Velocity Distribution in the Gap of an Ion Beam Diode

1986 ◽  
Author(s):  
Y. Maron ◽  
M. D. Coleman ◽  
D. A. Hammer ◽  
H. S. Peng
Keyword(s):  
Velocity Distribution ◽  
Ion Beam ◽  
Transverse Velocity

Speed-adjustable atomic beam of metastable helium for precision measurement

2020 ◽  
Vol 101 (5) ◽  
Author(s):  
J.-J. Chen ◽  
Y. R. Sun ◽  
J.-L. Wen ◽  
S.-M. Hu
Keyword(s):  
Precision Measurement ◽  
Atomic Beam ◽  
Metastable Helium

scholarly journals 100 Years Molecular Beam Method Reproduction of Otto Stern’s Atomic Beam Velocity Measurement

2021 ◽  
pp. 163-186
Author(s):  
Axel Gruppe ◽  
Simon Cerny ◽  
Kurt Ernst Stiebing ◽  
Cedric George ◽  
Jakob Hoffmann ◽  
...  
Keyword(s):  
High School ◽  
High School Students ◽  
Velocity Distribution ◽  
Experimental Verification ◽  
Atomic Beam ◽  
Velocity Measurement ◽  
Albert Einstein ◽  
School Students ◽  
Experimental Apparatus ◽  
History Of

AbstractThe history of Otto Stern’s pioneering measurement of the Maxwell-Boltzmann velocity distribution of a Silver atomic beam performed 1919 in Frankfurt is described. It is shown how Albert Einstein influenced Stern in his research. This experimental apparatus is not any more existing; therefore it was reconstructed in the workshops of the Physics faculty of the Goethe University in Frankfurt. The experimental verification of Stern’s results was finally achieved by a team of Frankfurt high school students (Gymnasium Riedberg) under the supervision of their teachers Axel Gruppe and Simon Cerny. By fighting against a number of difficulties, they succeeded to get the reconstructed apparatus started and were able to reproduce the results from the early experiments of Stern.

scholarly journals The velocity distribution of young radio pulsars: simulating the observations

1996 ◽  
Vol 160 ◽  
pp. 53-54 ◽  
Author(s):  
J.W. Hartman
Keyword(s):  
Magnetic Field ◽  
Velocity Distribution ◽  
Proper Motion ◽  
Transverse Velocity ◽  
Radio Pulsar ◽  
Population Synthesis ◽  
Radio Pulsars ◽  
Full Report ◽  
Simulated Sample

Lyne & Lorimer (1994) argue that the velocities of young pulsars are much higher than was previously thought. However, recent radio pulsar population synthesis work by Hartman et al. (1996, these proceedings) shows that simulations that use a birth velocity distribution with more pulsars at low velocities, Phinney’s modification of the Paczyński (1990) distributiondescribes the observed magnetic field, period and luminosity distribution equally well as simulations that use the Lyne & Lorimer distribution.We use this radio pulsar population synthesis model to obtain the proper motion distribution of the simulated sample, and from that we calculate the transverse velocity distribution to compare it with the observed transverse velocity distribution. A full report of this work will be given in Hartman (1996).

Simulation for Aberration of Chromium Atomic Beam Focusing and Deposition

2011 ◽  
Vol 189-193 ◽  
pp. 4191-4194
Author(s):  
Wen Tao Zhang ◽  
Jing Huang ◽  
Bao Hu Zhu ◽  
Yuan Yuan Wu ◽  
Xi Huang
Keyword(s):  
Atomic Beam ◽  
Spherical Aberration ◽  
Transverse Velocity ◽  
Critical Role ◽  
Chromatic Aberration ◽  
Image Distortion ◽  
Velocity Spread ◽  
Focal Line ◽  
Beam Focusing ◽  
Simulation Results

The image distortion which comes from aberration is analyzed and the effects on focal line features are also discussed, which are resulted from the spherical aberration, chromatic aberration and beam spread. The simulation results have show that source imperfection, especially the transverse velocity spread, plays a critical role in broadening the feature width.

Experimental Characterization of EHD Flow in an Electrostatic Air-Oil Droplets Separator Using Particle Image Velocimetry

2010 ◽  
Author(s):  
Xiangling Kong ◽  
Mohamed Alshehhi ◽  
Afshin Goharzadeh ◽  
Amir Shooshtari ◽  
Serguei Dessiatoun ◽  
...  
Keyword(s):  
Particle Image Velocimetry ◽  
Velocity Distribution ◽  
Particle Image ◽  
Electrostatic Force ◽  
Transverse Velocity ◽  
Inertial Force ◽  
Flow Patterns ◽  
Solid Particles ◽  
Oil Droplets ◽  
Image Velocimetry

In the present work, results of electrohydrodynamic (EHD) flow field in a wire-plate air-oil droplets electrostatic separator under positive polarity are presented. Using Particle Image Velocimetry (PIV), the structure of EHD flow under fully developed primary laminar gas flow is investigated and corresponding flow patterns are studied. Velocity distribution results show that the transverse velocity induced by EHD flow depends significantly on applied voltage and the cross-section plane position of the separator. Detailed transverse velocity distribution profiles under different ratio between electrostatic force and inertial force of droplets (Ehd/Re2) are presented. Oscillating jets are observed under a relatively low Ehd/Re2 ∼ 4 and counter rotating vortices around the wire for large Ehd/Re2 > 90 are characterized in this experiment. Contrary to EHD flow patterns for fine solid particles, no von Karman vortex was observed downstream of the charged electrode wire.

Sign in / Sign up

Export Citation Format

Share Document