Laboratório Nacional de Luz Síncrotron (LNLS) is the Brazilian National Laboratory of Synchrotron Light, a research institution on physics, chemistry, material science and life sciences. It is located in the Campinas' sub-district of Barão Geraldo, state of São Paulo, Brazil.
The Center, which is operated by the Brazilian Association for Synchrotron Light Technology (ABTLuS) under a contract with the National Research Council (CNPq) and the Ministry of Science and Technology of Brazil, has the only particle accelerator (a synchrotron) in Latin America, which was designed and built in Brazil by a team of physicists, technicians and engineers.