LNLS, Campinas, Brazil
Biotec Controle Ambiental, São José dos Campos, SP, Brazil
Prudente Engenharia Ltda., Uberlândia, Minas Gerais, Brazil
The increasing demands of instrumentation projects for SIRIUS require more sensitive equipment to be devel-oped and characterized in theμand nanometer scale. To achieve this level of precision it is necessary to work within a controlled environment, minimizing instabilities and disturbance effects such as temperature variation and vibrations. Based on metrology labs as those at BESSY, ESRF, DLS and others, a new facility is currently under final construction stage at the LNLS, which will be dedi-cated to high precision optical and mechanical metrolo-gies. This work describes in detail the project of the new LNLS Metrology Building.
LNLS, Campinas, Brazil
Currently under construction on Brazilian Synchrotron Light Laboratory Campus, Campinas/SP, Sirius is a 3GeV, 4th Generation Synchrotron Light Source. In this paper we describe the Front End that has been designed to transmit the intense synchrotron radiation generated by the insertion devices that will generate the most critical thermal stress, with a peak power density of 55.7 kW/mrad² and a total power of 9.3kW at 500mA in the storage ring. The functions of the main components and their location in the layout are described. Computational fluid dynamics (CFD) and structural simulations, that have been carried out to verify the performance under the high heat loads generated by Sirius, are also detailed along with the limits of temperature and stress that have been employed in the design.