UVX

Acelerador de partículas UVX

O UVX foi o primeiro acelerador de partículas operacional do Brasil e a primeira fonte de luz síncrotron do Hemisfério Sul, localizado em Campinas no Laboratório Nacional de Luz Síncrotron (LNLS). Foi discutido primeiramente em 1985,[1] por iniciativa dos físicos Ricardo Lago e Ricardo Rodrigues, e sua construção começou em 1987.[2]

Foi inaugurado em 1997 com a presença do então Presidente do Brasil Fernando Henrique Cardoso,[3] O custo inicial do LNLS à época foi de 70 milhões de dólares, o que representa um terço do gasto de instalações semelhantes ao redor do mundo.[4] Era um equipamento único em toda a América Latina e raro no mundo inteiro, disponível para pesquisadores do Brasil e do exterior. Foi desativado em 2 de agosto de 2019, quando as primeiras linhas de luz do Sirius começaram a operar e suplantaram sua aplicação.

Linhas de luz

A fonte de luz UVX permitia experimentos de microscopia nas faixas do infravermelho ao ultravioleta e raios-X, e chegava a energias de 1,37 GeV. Seu sistema de injeção incluía um acelerador linear de 120 MeV e um Síncroton Injetor de 500 MeV. O sistema operava em modo de decaimento. A maior parte das linhas de luz era baseada em ímãs-dipolos.[2]

Linhas de luz
Sigla Técnica
MX2 Cristalografia de Macromoléculas
PGM Espectroscopia com raios-X
SAXS1 Espalhamento de Raios-X de baixo ângulo
SXS Espectroscopia de Fotoelétrons e absorção de raios-x
SGM Espectroscopia eletrônica de superfície
SAXS2 Espalhamento de Raios-X de baixo ângulo
TGM Espectroscopia no Ultravioleta
XAFS1 Absorção de raios-X
XAFS2 Absorção de raios-X
XRD1 Difração de raios-X
XRD2 Difração de raios-X
XPD Difração de raios-X em Policristais
XDS Difração e espectroscopia de raios-X duros
XRF Microscopia de Fluorescência de raios-X
DXAS Dispersão e absorção de raios-X
IMX Microtomografia por raios-X
IR1 Nanoespectroscopia de infravermelho
Vista panorâmica do acelerador de partículas UVX

Ver também

Referências

  1. Saturno, Ares (26 de setembro de 2018). «Sirius, o acelerador de partículas mais potente do mundo, é brasileiro». Canaltech. Consultado em 25 de janeiro de 2023 
  2. a b «Fonte de Luz Síncrotron UVX – LNLS». lnls.cnpem.br. Consultado em 31 de maio de 2024 
  3. «UOL - Brasil Online - FHC elogia Covas durante visita a Campinas 22/11/97 13h10». www1.folha.uol.com.br. Consultado em 15 de junho de 2024 
  4. «Folha de S.Paulo - No coração da matéria - 09/11/97». www1.folha.uol.com.br. Consultado em 15 de junho de 2024 

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