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dc.contributor.advisorMohanty, A K
dc.contributor.authorOvhal, Ajay Ashok
dc.date.accessioned2016-11-02T13:47:58Z
dc.date.accessioned2018-07-31T06:04:42Z
dc.date.available2016-11-02T13:47:58Z
dc.date.available2018-07-31T06:04:42Z
dc.date.issued2016-11-02
dc.date.submitted2012
dc.identifier.urihttps://etd.iisc.ac.in/handle/2005/2580
dc.identifier.abstracthttp://etd.iisc.ac.in/static/etd/abstracts/3349/G25556-Abs.pdfen_US
dc.description.abstractThe Orbitrap is a mass analyzer that employs an electrostatic field to confine ions. The mass of an ion is determined from the frequency of its axial oscillations in the Orbitrap. The Orbitrap has high resolving power and accuracy. However, the electrodes of the Orbitrap have complicated curved shapes. As a consequence the Orbitrap is not easy to miniaturize. In this thesis we have proposed a class of easily machinable cylindrical-electrode structures to mimic the behavior of an Orbitrap. The proposed structure consists of a single cylinder and many coaxial equally spaced thick rings. A detailed numerical simulation of the cylindrical-electrode structure reveals that axial ion oscillations in it have many spurious frequency components in addition to the dominant frequency component. We have carried out a systematic shape optimization that adjusts the dimensions of the structure to minimize the amplitudes of the spurious frequency components of ion motion in the axial direction. The performance of the optimized structure was found to rival that of a practical Orbitrap.en_US
dc.language.isoen_USen_US
dc.relation.ispartofseriesG25556en_US
dc.subjectOrbitrapen_US
dc.subjectIon Trapsen_US
dc.subjectOrbitrap Cylindrical Electrodesen_US
dc.subjectIon Motionen_US
dc.subjectOrbitrap Structuresen_US
dc.subjectOrbitrap Electrodesen_US
dc.subjectIon Detectionen_US
dc.subjectCylindrical Electode Structuresen_US
dc.subjectOrbital Motionen_US
dc.subjectOrbitrap Mass Analyzeren_US
dc.subjectShape Optimizationen_US
dc.subjectAxial Ion Oscillationsen_US
dc.subject.classificationInstrumentationen_US
dc.titleShape Optimization Of A Cylilndrical-Electrode Structure To Mimic The Orbitrapen_US
dc.typeThesisen_US
dc.degree.nameMSc Enggen_US
dc.degree.levelMastersen_US
dc.degree.disciplineFaculty of Engineeringen_US


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