Use of hexapole magnet and spin flipper combined with time-of-flight analysis to characterize state-selected paramagnetic atomic/molecular beams

2021 ◽  
Vol 92 (1) ◽  
pp. 013201
Author(s):  
Mitsunori Kurahashi
Keyword(s):  
Time Of Flight ◽  
Molecular Beams ◽  
Spin Flipper

Measurements of Velocity Distribution in Potassium Molecular Beams by Time-of-Flight Method

1971 ◽  
Vol 10 (5) ◽  
pp. 543-550 ◽  
Author(s):  
Kumasaburo Kodera ◽  
Isao Kusunoki ◽  
Kunihiko Horinouchi ◽  
Kimio Isa ◽  
Masahiro Yoshihara
Keyword(s):  
Velocity Distribution ◽  
Time Of Flight ◽  
Molecular Beams ◽  
Time Of Flight Method

scholarly journals A modified time-of-flight method for precise determination of high speed ratios in molecular beams

2016 ◽  
Vol 87 (2) ◽  
pp. 023102 ◽  
Author(s):  
A. Salvador Palau ◽  
S. D. Eder ◽  
T. Kaltenbacher ◽  
B. Samelin ◽  
G. Bracco ◽  
...  
Keyword(s):  
High Speed ◽  
Time Of Flight ◽  
Molecular Beams ◽  
Precise Determination ◽  
Time Of Flight Method

scholarly journals Time-of-Flight study of molecular beams extracted from the ISOLDE RFQ cooler and buncher

2020 ◽  
Vol 463 ◽  
pp. 522-524 ◽  
Author(s):  
A. Ringvall Moberg ◽  
S. Warren ◽  
C. Muñoz Pequeño ◽  
J. Cruikshank ◽  
T. Giles ◽  
...  
Keyword(s):  
Time Of Flight ◽  
Molecular Beams

Time-of-flight resolved transmission-grating diffraction of molecular beams

2004 ◽  
Vol 28 (1) ◽  
pp. 125-133 ◽  
Author(s):  
W. Sch�llkopf ◽  
R. E. Grisenti ◽  
J. P. Toennies
Keyword(s):  
Time Of Flight ◽  
Molecular Beams ◽  
Transmission Grating ◽  
Grating Diffraction

Mechanically propelled molecular beams: techniques and opportunities

1989 ◽  
Vol 423 (1865) ◽  
pp. 361-371 ◽  
Keyword(s):  
Molecular Mass ◽  
Energy Resolution ◽  
Time Of Flight ◽  
Molecular Beams ◽  
Rotor System ◽  
Rotating Shaft ◽  
Fourfold Increase ◽  
Available Energy ◽  
Flight Measurement ◽  
And Control

The speed of propulsion of molecular beams by a rotating shaft has been extended beyond 2 km s -1 by the use of fibre-reinforced material; the optimization of the design is briefly reviewed. Two such rotors, synchronized and phased-locked to within 1° of arc, enable oppositely directed beams to collide with a fourfold increase of available energy, up to about 4 × 10 -2 eV per unit of molecular mass. The main constructional and operational features of the apparatus are described; it has been used in a preliminary search for photons from colliding atoms of mercury. The full exploitation of the double-rotor system will depend on the understanding and control of the spreads in direction, in speed and in time of the molecules in each pulse. The progress of pulses is therefore followed by elementary calculations that show that the beam intensity could be much higher than has hitherto been used. The double-rotor arrangement can also provide time-of-flight measurement in a manner not available to single-rotor propulsion or to beams from fixed sources. This is applicable when the instant of a collision can be precisely determined, for example by the timing of photon emissions. In such, admittedly exceptional, circumstances it would give improvement both in energy resolution and in the efficiency with which information is gathered.

scholarly journals J053012 Measurements of Time-of-Flight Distributions of Shock-heated Molecular Beams

2012 ◽  
Vol 2012 (0) ◽  
pp. _J053012-1-_J053012-5
Author(s):  
Kenichi OSUKA ◽  
Yuta YOSHIMOTO ◽  
Nobuya MIYOSHI ◽  
Ikuya KINEFUCHI ◽  
Shu TAKAGI ◽  
...  
Keyword(s):  
Time Of Flight ◽  
Molecular Beams

scholarly journals Laufzeitanalyse eines an einem CO2-Molekularstrahl gestreuten K-Atomstrahls

1968 ◽  
Vol 23 (5) ◽  
pp. 726-730 ◽  
Author(s):  
J. Gspann ◽  
G. Krieg
Keyword(s):  
Cross Section ◽  
Molecular Beam ◽  
Signal To Noise Ratio ◽  
Time Of Flight ◽  
Molecular Beams ◽  
Velocity Dependence ◽  
Signal Averaging ◽  
Measured Velocity ◽  
Short Pulses ◽  
Flight Measurements

A method is described to determine the velocity dependence of scattering processes from timeof-flight measurements with crossed molecular beams. Scattering of a potassium atomic beam by short pulses of a carbon dioxide molecular beam generates attenuation pulses in the intensity of the potassium beam. The time-of-flight broadening of these attenuation pulses is measured employing signal averaging to improve the signal-to-noise ratio from 1 to 100. The experimental results are in accordance with computed time-of-flight distributions based on the additionally measured velocity distributions and geometries of the two molecular beams, and using the known velocity dependence of the K-CO2 scattering cross section.

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