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#### Nonlinear Dynamics Of Resonances In, And Ejection From Paul Traps

(2008-09-26)

This thesis presents results of investigations that have been carried out to understand dynamics in nonlinear Paul trap mass spectrometers. Of the three problems that have been taken up for study in this thesis, the first ...

#### Performance Characterization Of A Cylindrical Ion Trap Mass Spectrometer

(2011-01-31)

The cylindrical ion trap (CIT) is made up of two planar endcap electrodes and a cylindrical ring electrode. The investigation of simpler geometries like CIT has been started off in recent years with a view towards ...

#### Numerical Investigation of Segmented Electrode Designs for the Cylindrical Ion Trap and the Orbitrap Mass Analyzers

(2018-02-08)

This thesis is a numerical study of fields within ion traps having segmented electrodes1. The focus is on two cylindrical ion trap structures, two Orbit rap structures and one planar structure which mimics the field of the ...

#### Geometry Optimization Of Axially Symmetric Ion Traps

(2009-05-13)

This thesis presents numerical optimization of geometries of axially symmetric ion
trap mass analyzers. The motivation for this thesis is two fold. First is to demonstrate
how the automated scheme can be applied to achieve ...

#### A Preliminary Study Of Fields In Split-Electrode Ion Traps

(2014-08-20)

Ion traps used in mass spectrometers are of two classes. One class consists of traps having three electrode geometries which have rotational symmetry about central axis. They are called axially symmetric ion traps. Paul ...

#### Numerical Study of Directionality of Ion Ejection In Axially Symmetric Ion Traps

(2013-02-13)

In the normal operation of quadrupole ion trap mass spectrometers, the trapped ions are ejected symmetrically through both the upper (detector) and lower(source) endcap electrodes during mass selective boundary ejection ...

#### Escape Of High Mass Ions Due To Initial Thermal Energy And Its Implications For RF Trap Design

(2013-05-31)

This thesis investigates the loss of high mass ions due to the initial thermal energy in ion trap mass analyzers. It provides an analytical expression for estimating the percentage loss of ions of a given mass at a particular ...

#### Axially Symmetric Equivalents Of Three-Dimensional Rf Ion Traps

(2013-09-13)

This thesis presents axially symmetric equivalents of three-dimensional rf ion traps. Miniaturization in mass spectrometry has focused on miniaturizing mass analyzers. Decrease in mass analyzer size facilitates reduction ...