Author: de Almeida, H.D.
Paper Title Page
THBPA03 The Back-End Computer System for the Medipix Based PI-MEGA X-Ray Camera 1149
 
  • H.D. de Almeida, D. P. Magalhaes, M.A.L. Moraes, J.M. Polli
    LNLS, Campinas, Brazil
 
  The Brazilian Synchrotron, in partnership with BrPhotonics, is designing and developing pi-mega, a new X-Ray camera using Medipix chips, with the goal of building very large and fast cameras to supply Sirius' new demands. This work describes the design and testing of the back end computer system that will receive, process and store images. The back end system will use RDMA over Ethernet technology and must be able to process data at a rate ranging from 50 Gbps to 100 Gbps per pi-mega element. Multiple pi-mega elements may be combined to produce a large camera. Initial applications include tomographic reconstruction and coherent diffraction imaging techniques.  
slides icon Slides THBPA03 [1.918 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THBPA03  
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THPHA215 A Control Architecture Proposal for Sirius Beamlines 1947
 
  • M.A.L. Moraes, R.M. Caliari, R.R. Geraldes, G.B.Z.L. Moreno, J.R. Piton, L. Sanfelici, H.D. de Almeida
    LNLS, Campinas, Brazil
 
  With the increased performance provided by 4th generation synchrotron light sources, precise motion control and event synchronization are essential factors to ensure experiment resolution and performance. Many advanced beamline systems, such as a new high-dynamic double crystal monochromator (HD-DCM), are under development for Sirius, the new machine under construction in Brazil. Among the expected performance challenges in such applications, complex coordinated movements during flyscans/continuous scans, hardware synchronization for pump­-and-­probe experiments and active noise suppression are goals to be met. Two architectures are proposed to cover general-purpose and advanced applications. The HD-DCM controller was implemented in a MATLAB/Simulink environment, which is optimized for RCP. Hence, its software must be adapted to a more cost-effective platform. One candidate controller is the NI cRIO. The portability of both MATLAB and NI PXI, the present standard control platform at LNLS, codes to cRIO is evaluated in this paper. Control resolution, acquisition rates and other factors that might limit the performance of these advanced applications are also discussed.  
poster icon Poster THPHA215 [1.516 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA215  
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