High resolution objectives optical design for spectroscopy measurements in the TCABR tokamak (2018)
- Authors:
- Autor USP: SEVERO, JOSÉ HELDER FACUNDO - IF
- Unidade: IF
- Subjects: TOKAMAKS; ESPECTROMETRIA
- Language: Português
- Abstract: The analysis of stray light radiation is the study of all unwanted sources that can reaches a detector, and can be considered as noise in an optical system. Although the choice of an electromagnetic radiation detector is often very complex, there are some factors that must be taken into account: active area of the detector, minimum acceptable signal-to-noise ratio (SNR), and the costs of the detector. These three factors are not, in principle, independent but are related to each other and other characteristics such as the wavelength of incident light, intensity and spectral density will in°uence at least one of these three factors. Another no less important factor is the area of the detector. The detector area certainly a®ects both cost and SNR magnitude. Recently, the optical group of TCABR tokamak start to use a new tool to correctly diminish the undesirable signal, the so called \Optical Transfer Function". The initial purpose is the investigation of ion temperature pro¯le and impurities distribution measurements. Computational analyses of OTF shows that lens system performance can be highly improved in rejecting stray light, to meet better contrast and image quality. In this work, we discuss the magnitude and ¯ssility of this improvement.The Optical Group nearly born in TCABR is bringing computational analysis of new devices to reality. Using the cloud storage and processing, researches can now interact to each other, changing experience and creating new collaborations. The system is available to all students sharing a network connection.
- Imprenta:
- Source:
- Título do periódico: Resumos
- Conference titles: Brazilian Meeting on Nuclear Physics
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ABNT
BELLINTANI JÚNIOR, Valdemar e MARTINS, Cezar Soares e SEVERO, José Helder Facundo. High resolution objectives optical design for spectroscopy measurements in the TCABR tokamak. 2018, Anais.. São Paulo: Instituto de Física, Universidade de São Paulo, 2018. Disponível em: https://sec.sbfisica.org.br/eventos/rtfnb/xli/programa/trabalhos.asp?sesId=17. Acesso em: 19 abr. 2024. -
APA
Bellintani Júnior, V., Martins, C. S., & Severo, J. H. F. (2018). High resolution objectives optical design for spectroscopy measurements in the TCABR tokamak. In Resumos. São Paulo: Instituto de Física, Universidade de São Paulo. Recuperado de https://sec.sbfisica.org.br/eventos/rtfnb/xli/programa/trabalhos.asp?sesId=17 -
NLM
Bellintani Júnior V, Martins CS, Severo JHF. High resolution objectives optical design for spectroscopy measurements in the TCABR tokamak [Internet]. Resumos. 2018 ;[citado 2024 abr. 19 ] Available from: https://sec.sbfisica.org.br/eventos/rtfnb/xli/programa/trabalhos.asp?sesId=17 -
Vancouver
Bellintani Júnior V, Martins CS, Severo JHF. High resolution objectives optical design for spectroscopy measurements in the TCABR tokamak [Internet]. Resumos. 2018 ;[citado 2024 abr. 19 ] Available from: https://sec.sbfisica.org.br/eventos/rtfnb/xli/programa/trabalhos.asp?sesId=17 - Bolometric study of MHD oscillations in TCABR tokamak
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