Study the most favorable shapes of electrostatic quadrupole doublet lenses

2017 ◽  
Author(s):  
O. A. Hussein ◽  
O. Sise
Keyword(s):  
Quadrupole Doublet ◽  
Electrostatic Quadrupole

scholarly journals RFQ final-focusing lens at the GSI

1991 ◽  
Vol 9 (4) ◽  
pp. 863-867
Author(s):  
B. Heimrich ◽  
H. J. Laue ◽  
H. Wollnik
Keyword(s):  
Radio Frequency ◽  
Dense Matter ◽  
Quadrupole Doublet ◽  
Heavy Ion ◽  
Ion Beams ◽  
Beam Power ◽  
Radio Frequency Quadrupole ◽  
Small Spot ◽  
Focusing Lens ◽  
Electrostatic Quadrupole

For first investigations of hot dense matter produced by intense heavy-ion beams we built an electrostatic quadrupole doublet that focused Ar+and Kr+ ions of 45 keV/amu after acceleration through the radio frequency quadrupole (RFQ) accelerator at the GSI onto a small spot of approximate area 1 mm2. This beam then deposited a specific beam power of about 1.5 GW/g to targets.

Note: Performance of a novel electrostatic quadrupole doublet for nuclear microprobe application

2018 ◽  
Vol 89 (8) ◽  
pp. 086103
Author(s):  
Jack E. Manuel ◽  
Szabolcs Z. Szilasi ◽  
Todd A. Byers ◽  
Dustin Z. Phillips ◽  
Alexander D. Dymnikov ◽  
...  
Keyword(s):  
Quadrupole Doublet ◽  
Nuclear Microprobe ◽  
Electrostatic Quadrupole

RECOMBINATION OF OPPOSITELY CHARGED AQUEOUS CLUSTER IONS USING ELECTROSTATICALLY MERGED ION BEAMS

1996 ◽  
Vol 03 (01) ◽  
pp. 655-660 ◽  
Author(s):  
B. PLASTRIDGE ◽  
K.A. COWEN ◽  
D.A. WOOD ◽  
M.H. COHEN ◽  
J.V. COE
Keyword(s):  
Rate Constants ◽  
Cluster Size ◽  
Collision Energy ◽  
Relative Rate ◽  
Center Of Mass ◽  
Cluster Ions ◽  
Charged Cluster ◽  
Relative Rate Constants ◽  
Oppositely Charged ◽  
Electrostatic Quadrupole

A new method for studying cluster-cluster interactions is introduced which involves merging mass-selected beams of oppositely charged cluster ions with an electrostatic quadrupole deflector. Recombination is monitored by measuring the rate of fast neutral production. Relative rate constants have been measured for the reaction of H 3O+( H 2 O )n+ OH −( H 2 O )m as a function of cluster size (m=n=0–3), which display a pronounced enhancement with clustering. Relative rate constants have also been measured as a function of center-of-mass collision energy for a heavily clustered reaction (n=3, m=3) and a lightly clustered reaction (n=1, m=0) revealing that clustering produces a dramatic change in the reaction mechanism.

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