Ion collision cross section analyses in quadrupole ion traps using the filter diagonalization method: a theoretical study

2016 ◽  
Vol 18 (17) ◽  
pp. 12058-12064 ◽  
Author(s):  
Ting Jiang ◽  
Miyi He ◽  
Dan Guo ◽  
Yanbing Zhai ◽  
Wei Xu
Keyword(s):  
Cross Section ◽  
Theoretical Study ◽  
Collision Cross Section ◽  
Ion Traps ◽  
Resolving Power ◽  
Filter Diagonalization ◽  
Diagonalization Method ◽  
Ion Collision ◽  
Theoretical Results ◽  
Quadrupole Ion Traps

Theoretical results show that an up to 200 resolving power could be achieved for ion collision cross section measurements in quadrupole ion traps.

scholarly journals Correction: Ion collision cross section analyses in quadrupole ion traps using the filter diagonalization method: a theoretical study

2016 ◽  
Vol 18 (42) ◽  
pp. 29642-29642 ◽  
Author(s):  
Ting Jiang ◽  
Muyi He ◽  
Dan Guo ◽  
Yanbing Zhai ◽  
Wei Xu
Keyword(s):  
Cross Section ◽  
Theoretical Study ◽  
Collision Cross Section ◽  
Ion Traps ◽  
Chem Phys ◽  
Filter Diagonalization ◽  
Diagonalization Method ◽  
Ion Collision ◽  
Filter Diagonalization Method ◽  
Quadrupole Ion Traps

Correction for ‘Ion collision cross section analyses in quadrupole ion traps using the filter diagonalization method: a theoretical study’ by Ting Jiang et al., Phys. Chem. Chem. Phys., 2016, 18, 12058–12064.

The coupling effects of hexapole and octopole fields in quadrupole ion traps: a theoretical study

2013 ◽  
Vol 48 (8) ◽  
pp. 937-944 ◽  
Author(s):  
Yuzhuo Wang ◽  
Zejian Huang ◽  
You Jiang ◽  
Xingchuang Xiong ◽  
Yulin Deng ◽  
...  
Keyword(s):  
Theoretical Study ◽  
Ion Traps ◽  
Coupling Effects ◽  
Quadrupole Ion Traps

scholarly journals Theoretical study of the isomeric cross section of the 197Au(n,2n) reaction

2019 ◽  
Vol 18 ◽  
pp. 13
Author(s):  
A. Tsinganis ◽  
M. Diakaki ◽  
M. Kokkoris ◽  
A. Lagoyannis ◽  
C. T. Papadopoulos ◽  
...  
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Isomeric State ◽  
Level Scheme ◽  
Reaction Cross Section ◽  
Theoretical Study ◽  
Strong Dependence ◽  
Mass Region ◽  
Reaction Cross ◽  
Theoretical Results

In the present work, the 197Au(n,2n) reaction cross section is studied within the framework of the Gen- eralized Superfluid Model (GSM). The cross sections for the population of the second isomeric state (12−) of 196Au and the sum of the ground (2−) and first isomeric state (5−) population cross sections were independently studied in the 8 to 25 MeV region with the use of the STAPRE-F, EMPIRE and TALYS codes, which were also compared in their implementation of the GSM. The theoretical results are compared with previous work in the same mass region and the strong dependence on the level scheme of the nuclei involved was revealed.

Ion collision crosssection measurements in quadrupole ion traps using a time–frequency analysis method

The Analyst ◽  
2014 ◽  
Vol 139 (23) ◽  
pp. 6144-6153 ◽  
Author(s):  
Muyi He ◽  
Dan Guo ◽  
Yu Chen ◽  
Xingchuang Xiong ◽  
Xiang Fang ◽  
...  
Keyword(s):  
Frequency Analysis ◽  
Ion Traps ◽  
Analysis Method ◽  
Time Frequency Analysis ◽  
Time Frequency ◽  
Ion Collision ◽  
Quadrupole Ion Traps

In this study, a method for measuring ion collision crosssections (CCSs) was proposed through time–frequency analysis of ion trajectories in quadrupole ion traps.

scholarly journals Experiments on molecular scattering in gases. II.—The collision of sodium and potassium atoms with mercury

1933 ◽  
Vol 141 (845) ◽  
pp. 634-641 ◽  
Keyword(s):  
Quantum Theory ◽  
Cross Section ◽  
Classical Theory ◽  
Decay Constant ◽  
Collision Cross Section ◽  
Mean Free Path ◽  
Resolving Power ◽  
Scattering Medium ◽  
Molecular Scattering ◽  
The Masses

An important parameter in the quantum theory of molecular scattering as developed by Massey and Mohr is a quantity Q which corresponds roughly to a collision cross-section in classical theory. Of the quantities related to Q, that which is most directly accessible to observation is the decay constant of the intensity of a molecular beam traversing a scattering medium; the reciprocal of this constant corresponds to the mean free path of classical theory. Thus if I is the intensity of a beam which has passed through a distance d of a scattering medium, and I 0 is the original intensity, measured at the same distance from the source as is I, then I = I 0 e - d /λ , (1) where 1/λ is the decay constant; and we define Q by the relation λ = 1/Q v 2 √1 + m 1 / m 2 where m 1 , m 2 are the masses of the scattered and scattering molecules respectively, and v 2 is the molecular concentration of the scattering medium. The intensity I in equation (1) refers to those molecules which have suffered no deviation whatsoever in traversing the scattering medium. It is justifiable to assign this meaning to I, since quantum theory shows that if the interaction energy vanishes at infinity faster than 1/(distance) 2 , the ratio I/I 0 , and hence Q, is finite. Direct observation of the value of I/I 0 is, however, impossible, since it presumes an apparatus of infinite resolving power. Nevertheless, by using long narrow slits to define the beam, it is quite feasible to obtain angular apertures of only some 10 -4 radians without serious loss of intensity; and it is therefore pertinent to enquire how far the theory allows the deduction of the desired value of I/I 0 at zero angle from measurements made with beams of ribbon cross-section possessing small but finite apertures.

Nonthermal and Plasmon Effects on Elastic Electron-Ion Collisions in Hot Quantum Lorentzian Plasmas

2009 ◽  
Vol 64 (1-2) ◽  
pp. 44-48
Author(s):  
Hwa-Min Kima ◽  
Young-Dae Jung
Keyword(s):  
Cross Section ◽  
Collision Energy ◽  
Collision Cross Section ◽  
Plasma Temperature ◽  
Interaction Model ◽  
Elastic Electron ◽  
Plasma Parameters ◽  
Ion Collisions ◽  
Ion Collision ◽  
The Impact

The nonthermal and plasmon effects on elastic electron-ion collisions are investigated in hot quantum Lorentzian plasmas. The modified interaction model taking into account the nonthermal screening and plasmon effects is employed to represent the electron-ion interaction potential in hot quantum Lorentzian plasmas. The eikonal phase and differential collision cross-section are obtained as functions of the impact parameter, collision energy, spectral index, and plasma parameters by using the second-order eikonal analysis. It is shown that the plasmon effect suppresses the eikonal phase and collision cross-section for 0 < β (ћω0/kBT < 0.6) and, however, enhances it for 0.6 < β < 1, where ω0 is the plasma frequency and T is the plasma temperature. It is also shown that the nonthermal character of the quantum Lorentzian plasma suppresses the elastic electron-ion collision cross-section.

Ion collision cross section measurements in Fourier transform-based mass analyzers

The Analyst ◽  
2016 ◽  
Vol 141 (12) ◽  
pp. 3554-3561 ◽  
Author(s):  
Dayu Li ◽  
Yang Tang ◽  
Wei Xu
Keyword(s):  
Fourier Transform ◽  
Cross Section ◽  
Collision Cross Section ◽  
High Vacuum ◽  
Ion Collision

High-vacuum ion collision cross section (CCS) measurements in Fourier transform mass analyzers.

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