Brazilian Center for Research in Energy and Materials
accelerator ,synchrotron light source ,beamline
Caixa Postal 6192 CEP 13083-970, Campinas, Sao Paulo, Brazil.
The build of a linear protons accelerator to investigate prions and others elementary particles. The LNLS team designed, built and now operates the Synchrotron Light Source: an intense source of radiation spanning the electromagnetic spectrum all the way from the infrared to ultra-violet and hard X-rays. The source is based on a 93 m circumference storage ring inside which a 1.37 GeV electron beam circulates generating brilliant photon beams.
Synchrotron radiation has also been used by the cosmetic industry for the analysis of skin microstructure and the process of hair growth. Tis is also true for the Building Supplies industry, as it allows it to unravel the physical properties of polymers, the various processes for cement hydration, resistance or degradation of materials. research in structural biology, genome projects and advances in the field of crystallization of biomolecules. All the major pharmaceutical companies use European synchrotron radiation centers to understand the structure and function of proteins in order to design new drugs.
Energy 1.37 GeV Injection energy 500 MeV Beam current 250 mA Circumference 93.2 m Average diameter 29.7 m Magnetic lattice DBA Lattice symmetry 6 Dipole Bending radius 2.735 m Dipole field 1.67 T Number of dipoles 12 Free straight sections 4 Straight section length 2.95 m Natural emittance (@max energy) 100 nm.rad Horizontal tune 5.27 Vertical tune 4.17 Synchrotron frequency (@max energy, Vrf = 500 kV) 25 kHz Natural horizontal chromaticity -7.8 Natural vertical chromaticity -9.5 Momentum compaction factor 0.0083 Energy dispersion 0.281 % RF frequency 476.066 MHz Harmonic number 148 Revolution period 311 ns Horizontal damping time (@max energy) 7.8 ms Vertical damping time (@max energy) 7.5 ms Synchrotron damping time (@max energy) 3.7 ms Beam lifetime (with/without coupling correction) 26/17 h Energy loss per turn in the dipoles 114 eV Radiated power at the dipoles (@100 mA) 11.4 kW Critical energy in the dipoles 2.08 keV