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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 76 for “"cyclotron resonance"”.
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Cyclotron Resonance in Cadmium-Telluride
Made available in DSpace on 2015-05-12T21:41:30Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6500848.PDF: 3124153 bytes, checksum: 4dee773f1804e4c323339942c1165276 (MD5) Previous issue date: 1964
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Cyclotron resonance in cadmium telluride
"Cyclotron resonance experiments have been performed on single crystals of high purity, n-type CdTe at 4.2°K. A reflection type microwave spectrometer was employed, operating at a frequency of 70 Gc. The mass and the mobility of the carriers, as determined from the resonance spectra, identify the …
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Numerical modeling of electron cyclotron resonance plasma
… semiconductor industry is introducing electron cyclotron resonance (ECR) plasma reactors as reliable wafer etching tools. This industry requires radially uniform etching rate and radially uniform etching anisotropy. The etching rate and etching anisotropy depend on the ECR plasma properties.
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Copper metallization with an electron cyclotron resonance
An "electron cyclotron resonance" plasma source, used for physical vapor deposition of copper into sub-micron features, was studied to determine whether parameters, such as gas atom density, electron density and temperature, surface bias, and copper ionization fraction at the deposition surface, …
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Mass spectroscopy using single ion cyclotron resonance
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1990.
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Improved single ion cyclotron resonance mass spectroscopy
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1993.
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Low temperature epitaxial silicon growth using electron cyclotron resonance plasma deposition
… wafers are not used. We have used electron cyclotron resonance (ECR) plasma deposition to grow high quality epitaxial silicon films on silicon wafers. This growth technique relies on the deposition of silicon from a highly energetic hydrogen and silane plasma. The presence of the hydrogen in …
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Advancing Ion Cyclotron Resonance Heating with improved simulations and novel antenna concepts
L'abstract è presente nell'allegato / the abstract is in the attachment
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Ion Cyclotron Resonance Heating Induced Transport in Stellarators and Other Asymmetric Toroids
… model minority ion transport and fundamental ion cyclotron resonance heating (ICRH) in asymmetric magnetic field geometries. A discrete event model is used to superimpose resonance heated nonadiabatic changes in an ion's magnetic moment on a Coulomb scattering model that contains the Spitzer …
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Electron Interactions in Gaseous Discharge Plasmas and Their Effect on Cyclotron Resonance
Made available in DSpace on 2014-12-04T21:02:59Z (GMT). No. of bitstreams: 1 0025232.pdf: 4274888 bytes, checksum: cb5211ea71201bb4ea1d28054a5abf4a (MD5) Previous issue date: 1957
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Fast wave ion cyclotron resonance heating experiments on the Alcator C tokamak
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1988.
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Analysis of low-energy neutral hydrogen fluxes using an electron cyclotron resonance-heated discharge
This dissertation describes the design, construction, and proof-of-principle verification of a neutral hydrogen flux detection system, based on an ECRH discharge as the neutral flux ionizer. The significant features of the ionizer are its small size and simultaneous excitation of the ECRH mode …
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Plasma characterisation of an electron cyclotron resonance ion source by means of x-ray spectroscopy
… multiply-charged ion source, like the Electron Cyclotron Resonance Ion Source, ECRIS, is the production of multiply-charged ions, in sufficiently large quantities. These multiplycharged ions, in the case of the ECRIS, are created by a step-by-step ionisation process, whereby neutral atoms are …
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Ion-Cyclotron Resonance Heating of O+ in the Topside Ionosphere and Mapping Outflows to the Magnetosphere
… considers the heavy ion dynamics due to ion-cyclotron resonance energization processes that take place in the turbulent region of the Earth’s topside, high latitude ionosphere. We simulate the impact of this transverse heating process upon energies and velocity distribution functions of …
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Consequences of Mode Structure on Plasma Parameters in Electron Cyclotron Resonance Sources used for Materials Processing
Made available in DSpace on 2017-07-06T18:49:02Z (GMT). No. of bitstreams: 3 Kinder_Ronald_L_MS.pdf: 55983630 bytes, checksum: 14b73a0c7b164993c74cc15004434846 (MD5) Kinder_Ronald_L_MS_ABS.pdf: 637320 bytes, checksum: c1708001642b4606ece902c468dd5af2 (MD5) license.txt: 4813 bytes, checksum: …
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Investigation on the Microwave-based techniques to improve the performances of the Electron Cyclotron Resonance Ion Sources
Le sorgenti di ioni di tipo ECR (Electron Cyclotron Resonance) si sono rivelate molto importanti per la produzione continua ed affidabile di fasci intensi di ioni ad alto stato di carica destinati alle facilities di acceleratori di particelle. Recentemente, nuove tecniche sono state sviluppate per …
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Characterization of Cucurbituril Complex Ions in the Gas Phase Using Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry
… threaded through. Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) is an ideal technique for investigation of host-guest supramolecular complexes due to its ultra-high mass resolving power, ultra-high mass accuracy, and high sensitivity. Moreover it has the …
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Profiling the metabolome using Fourier transform ion cyclotron resonance mass spectrometry, optimised signal processing, noise filtering and constraints methods
… samples, by applying Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Three novel methods were developed to improve the quality of mass spectra and their interpretation. The first, SIM-stitching, combined multiple, narrow spectra into a single, wide spectrum; an …
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Design and testing of an electron cyclotron resonance heating ion source for use in high field compact superconducting cyclotrons
… of a high brightness beam from an Electron Cyclotron Resonance ion source into a high magnetic field cyclotron. Axial injection from an ion source with high brightness is important to reduce particle losses in the first several turns of acceleration within the cyclotron. Beam brightness is a …
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