A5042502786- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Advanced Surface Polishing Techniques
- Diamond and Carbon-based Materials Research
- Superconducting Materials and Applications
- Advanced X-ray Imaging Techniques
- Metal and Thin Film Mechanics
- Advanced Welding Techniques Analysis
- Advancements in Photolithography Techniques
- Microstructure and Mechanical Properties of Steels
- Optical Coatings and Gratings
- Advanced materials and composites
- Gyrotron and Vacuum Electronics Research
- High-Temperature Coating Behaviors
- Academic Research in Diverse Fields
- Photocathodes and Microchannel Plates
- Multiferroics and related materials
- Aluminum Alloys Composites Properties
- Magnetic Properties and Synthesis of Ferrites
- Advanced Sensor Technologies Research
- Pigment Synthesis and Properties
- Material Selection and Properties
- Structural Engineering and Materials Analysis
- Recycling and Waste Management Techniques
- Radio Astronomy Observations and Technology
Brazilian Synchrotron Light Laboratory
2006-2020
Sirius is a Synchrotron Light Source Facility based on 4th generation low emittance storage ring that presently under construction in Campinas, Brazil. During the last year, accelerator activities concentrated R&D of various subsystem components. However, number components production or already delivered also increasing according to planning. The building started beginning 2015 and machine commissioning expected start mid 2018. In this paper we report present status project with emphasis...
Sirius is a Synchrotron Light Source Facility based on 4th generation 3 GeV low emittance electron storage ring that under construction in Campinas, Brazil. Presently the main tunnel for accelerators ready to start installations. The Linac was delivered earlier and 150 MeV from SINAP almost commissioning early May. Commissioning of expected by end this year (2018). In paper we briefly review overall project parameters design concepts focus highlights subsystems.
The rare-earth orthoferrites (LnFeO 3 ) are promising materials for various applications, such as chemical sensors, cathode SOFC, catalysts, among others. In general, these oxides synthesized at temperatures higher than 700 °C. this work, nanocrystalline LaFe 1-x Al x O (x=0, x=0.2) powders were by a method that uses gelatin organic precursor and heat treated 400, 600 800 structural magnetic characterization of was carried out X-ray diffraction (XRD) vibrating sample magnetometry (VSM)....
In this work, we synthesized oxides with perovskite LnFeO3 type structure (where Ln = La, Pr and Nd), aiming their use as ceramic pigments. The as-synthesized powders, prepared by gelatin method, were thermally treated at 600 800 ?C to obtain the phase. characterization was performed using X-ray diffraction technique, followed Rietveld refinement, scanning transmission electron microscopy, spectroscopy in UV-Visible region CIE Lab colorimetry. calcined powders also used for fabrication of...
Recent experiments at the Brazilian Synchrotron Ligth Source (LNLS) Ultra Violet and X-Ray beamlines are pushing on Radiation (SR) beam position stability requirements. In direction of having photon Beam Position Monitor integrated to orbit closed loop control system, we developed a staggered blades XR BPM four-channel current measurement electronics. The mechanical design was based SR masks previously currently in use beamline front ends. By this reuse, addition using readily-available,...
We present the electrical and mechanical design of a button beam position monitor (BPM) recently developed installed in UVX electron storage ring at Brazilian Synchrotron Light Laboratory (LNLS). The first characterization results will also be presented. This development started when we observed strong correlation between false stripline BPM readings external temperature this BPM. Simulations indicate that gradient body can cause deformations could explain some BPMs. small dimension compared...
Sirius is a 3 GeV synchrotron light source that being built by the Brazilian Synchrotron Light Laboratory (LNLS). The electron storage ring based on modified 5BA cell to achieve bare lattice emittance of 0.27 nm.rad in 518 m circumference contains 20 straight sections alternating 6 and 7 meters length. accommodates thin permanent magnet high field (2 T) dipole center middle bend producing hard X-ray radiation (ec=12 keV) with modest contribution total energy loss. In this paper we discuss...
Diamonds films have characteristics that are interesting for many optical applications, such as transparency to ultraviolet, visible and infrared light. These applications include use in detectors windows processes involve high temperatures, microelectronics wear-resistant components [. Polycrystalline diamond can be made the vapor phase at low-pressure, relatively low temperatures form of auto-supported films, using CVD process (Chemical Vapor Deposition) a significant number industrial but...
The monochromator is known to be one of the most critical optical elements a synchrotron beamline, since it directly affects beam quality with respect energy and position. Naturally, new 4th generation machines, their small emittances, start bring about higher stability performance requirements, in spite factors as high power loads, load variation, vibration sources. A high-dynamics DCM (Double Crystal Monochromator) under development at Brazilian Light Source for Sirius EMA beamline...
O desenvolvimento dos alimentadores de tensao das antenas Alfven, a serem instaladas no tokamak TCABR e apresentado. A preparacao das diferentes partes e o procedimento adotado processo brasagem sao descritos em detalhe.
The Double Crystal Monochromator (DCM) will be developed at the Brazilian Synchrotron Light Laboratory (LNLS) to select desired X-Ray wavelength of Sirius, new fourth generation synchrotron. Components this optical instrumentation can obtained through welding processes, such as brazing, soldering, and diffusion bonding. use vacuum technique ensures union silicon with FeNi alloy, Invar36 (64Fe-36Ni) from Grupo Metal Invar39 (61Fe-39Fe) Scientific Alloys . Union these materials was performed...
Following the upgrade of LNLS injector system with addition a 500 MeV booster synchrotron, storage ring in vacuum ferrite injection kicker magnets started to show overheating due interaction high frequency electromagnetic fields induced by electron beam large currents. In this paper, we describe design new ceramic chamber for kickers, which minimize effect decreasing coupling impedance kickers and their beam.
This study aims to identify the effects caused by diffusion through heat treatment in diamonds, brazed components with metals and its on mechanical properties microstructure. It will be used diamond films produced CVD process, active filler metallic substrate, using a high vacuum furnace at MAT / LNLS CNPEM; samples were treated atmosphere too. The characterizations are carried out hardness testing, sealing equipment CNPEM facilities, chemical microstructural characterization performed...
The Sirius Project is an initiative of the Brazilian Synchrotron Light Laboratory - LNLS (CNPEM MCTI), for design, construction and operation a new synchrotron radiation source 3rd generation, with high brightness energy electrons 3.0 GeV. Among many other components there will be built 80 ceramic cameras embedded in special magnets, whose function to act correct orbit electron beam storage ring. chamber crucial this application because material transparent magnetic field generated electro...
ResumoEste trabalho apresenta um estudo do desgaste de insertos e tensões residuais em diferentes estratégias entrada ferramenta no fresamento da liga Ti-6Al-4V.Esta possui propriedades mecânicas que a torna ideal para aplicações onde é necessária uma ótima relação resistência-peso.O objetivo reduzir o dos processo analisar as na usinagem Ti-6Al-4V
The energy of the injection linac and transport line into LNLS synchrotron storage ring will be increased to 170 MeV by doubling microwave power linac. new system operate with 4 klystrons, delivering 25 MW pulses each one accelerating SLAC-type structures. This paper describes design construction tests 2 klystron modulators, drive system, waveguides, as well upgrading supplies for magnets.