Radio frequency multicusp ion source development (invited)

1996 ◽  
Vol 67 (3) ◽  
pp. 1302-1307 ◽  
Author(s):  
K. N. Leung
Keyword(s):  
Radio Frequency ◽  
Ion Source ◽  
Multicusp Ion Source

Small radio frequency driven multicusp ion source for positive hydrogen ion beam production

1994 ◽  
Vol 65 (4) ◽  
pp. 1186-1188 ◽  
Author(s):  
L. T. Perkins ◽  
P. R. Herz ◽  
K. N. Leung ◽  
D. S. Pickard
Keyword(s):  
Radio Frequency ◽  
Ion Beam ◽  
Ion Source ◽  
Hydrogen Ion ◽  
Multicusp Ion Source ◽  
Beam Production

A Band Rejection Filter of High Current Radio Frequency Ion Source for Neutral Beam Injector

2021 ◽  
pp. 1-6
Author(s):  
Wei Liu ◽  
Qinglong Cui ◽  
Sheng Liu ◽  
Lizhen Liang ◽  
Yuanzhe Zhao ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Ion Source ◽  
Neutral Beam ◽  
High Current ◽  
Neutral Beam Injector ◽  
Rejection Filter

Restoration of the radio frequency ion source of the 5.5 MV CN-Van de Graaff accelerator at IFUNAM

2021 ◽  
Vol 16 (08) ◽  
pp. T08013
Author(s):  
C.G. Puigvert-Angulo ◽  
R. Espejel ◽  
C. Valencia ◽  
A.O. Valdez-Guerrero ◽  
J. Mas-Ruiz ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Ion Source ◽  
Graaff Accelerator ◽  
Van De Graaff

scholarly journals Increasing the efficiency of a multicusp ion source

1982 ◽  
Vol 53 (9) ◽  
pp. 1429-1433 ◽  
Author(s):  
K. W. Ehlers ◽  
K. N. Leung
Keyword(s):  
Ion Source ◽  
Multicusp Ion Source

A Theoretical Investigation of the Kinetic Energy of Ions Trapped in a Radio-Frequency Hexapole Ion Trap

2002 ◽  
Vol 8 (2) ◽  
pp. 181-189 ◽  
Author(s):  
Liam A. McDonnell ◽  
Anastassios E. Giannakopulos ◽  
Peter J. Derrick ◽  
Youri O. Tsybin ◽  
Per Håkansson
Keyword(s):  
Kinetic Energy ◽  
Radio Frequency ◽  
Space Charge ◽  
Free Path ◽  
Ion Trap ◽  
Mean Free Path ◽  
Ion Source ◽  
Average Kinetic Energy ◽  
Negative Consequences ◽  
Covalent Adducts

The kinetic energy dependence of ions trapped in a radio-frequency (RF) hexapole ion trap has been calculated as a function of space charge, mean free path, mass, RF potential and charge. The average kinetic energy of the ions was found to increase with increasing space charge, mean free path and the ion charge state. For a trapped ion in a given coulombic field, the mass of the ion and the amplitude of the applied RF potential did not affect the average kinetic energy. The consequences for multipole-storage-assisted dissociation (MSAD), in which ions are accumulated for prolonged periods of time in the multipole ion trap of an electrospray ion source, are discussed. As a result of radial stratification inside the ion trap, MSAD can lead to the preferential excitation of ions with larger m/z values. Such discrimination would have negative consequences for the detection of labile non-covalent adducts, which are normally detected at higher m/z values than their constituent species.

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