Vacuum Ultraviolet Spectroscopy
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Supramolecular Architecture and Electrical Properties of a Perylene Derivative in Physical Vapor Deposited Films
The supramolecular structure of organic thin films is a key factor in their optical and electrical properties and, consequently, in the technological applications involving organic electronic. Here, thin films of a perylene derivative, the bis butylimido perylene (BuPTCD), were produced by vacuum thermal evaporation (PVD, physical vapor deposition). The main
Mat. Res.. Publicado em: 17/11/2015
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2. Estudos de plasmas em Tokamaks : medidas de temperatura iônica via espectroscopia no ultravioleta do vácuo, e deposição de potência por feixe de partículas neutras / Study of Tokamak plasmas : ion temperature measurements via vacuum ultraviolet spectroscopy, and power deposition by neutral beam injection
O desenvolvimento deste trabalho ocorreu em duas frentes distintas relacionadas à grande área de pesquisa: Fusão Termonuclear Controlada em dispositivos do tipo tokamak. A primeira fase abordou estudos de espectroscopia, tendo como principal motivação o aprimoramento dos métodos de medida e tratamento de dados na área de diagnósticos de plasmas quent
Publicado em: 2011
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3. Estudo do processo de deposição e propriedades de filmes de oxido de tungstenio obtidos por uma nova tecnicas de deposição / Study of the deposition process of tungsten oxide films obtained by a new deposition technique
This work describes a novel technique for the deposition of tungsten oxide thin films and reports an investigation on their deposition process and properties. The films were obtained in a vacuum deposition chamber fitted with a tungsten filament heated by an ac power supply. Oxygen was admitted into the chamber using mass flow meters. The films were formed o
Publicado em: 2003
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4. Estudos de plasmas a altas temperaturas por espectroscopia visivel e ultravioleta no vacuo
In this thesis we present results on a wide variety of experiments related to magnetically confined plasma spectroscopy. We discuss the applicability of atomic models to our spectroscopy measurements, spectrometers absolute calibration, as well as the determination of many parameters of the plasma confined in the tokamak NOVA-UNICAMP. For these measurements,
Publicado em: 2003
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5. Dense plasmas research in the Chilean Nuclear Energy Commission: past, present and future
A review of the dense transient plasmas researches, developed in the Chilean Nuclear Energy Commission, is presented. A brief summary of the researches done in collaboration with the Pontificia Universidad Católica de Chile, between 1993 to 1997, is shown. In addition, the program "Plasma Physics in Small Devices", developed at the Comisión Chilena de Ener
Brazilian Journal of Physics. Publicado em: 2002-03
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6. Vacuum ultraviolet and visible spectroscopy diagnostics on the NOVA-UNICAMP tokamak
Three visible and one VUV spectrometers covering four toroidal positions have been set to study He and H plasma created by NOVA-UNICAMP tokamak. Ion temperatures have been measured at the beginning of the tokamak discharge by Doppler broadening of C, O and He lines. The time evolution of carbon line emissions, with different degrees of ionization, showed to
Braz. J. Phys.. Publicado em: 2001-09