Author: Lewis, W.K.
Paper Title Page
NSLS II Project, Development, and Commissioning Results  
  • L.R. Dalesio, G. Carcassi, M.A. Davidsaver, J.H. De Long, K.M. Ha, W.K. Lewis, N. Malitsky, K. Shroff, Y. Tian, L. Yang
    BNL, Upton, Long Island, New York, USA
  • G. Shen
    FRIB, East Lansing, Michigan, USA
  The NSLS II project started control system development in 2007 and completed commissioning in 2015. New hardware, tools, and applications were developed throughout the project to meet the project goals. Significant developments included the fast orbit feedback system, service based physics applications, relational database tools, and an integrated operator environment Control System Studio (CSS). This paper will discuss the results of the developments that were undertaken and their use for the accelerator and beam lines, commissioning results, and lessons learned along the way.  
slides icon Slides MOB3O02 [2.260 MB]  
WED3O02 Databroker: An Interface for NSLS-II Data Management System 1
  • A. Arkilic, D.B. Allan, D. Chabot, L.R. Dalesio, W.K. Lewis
    BNL, Upton, Long Island, New York, USA
  Funding: Brookhaven National Lab, U.S. Department of Energy
A typical experiment involves not only the raw data from a detector, but also requires additional data from the beamline. This information is largely kept separated and manipulated individually, to date. A much more effective approach is to integrate these different data sources, and make these easily accessible to data analysis clients. NSLS-II data flow system contains multiple backends with varying data types. Leveraging the features of these (metadatastore, filestore, channel archiver, and Olog), this library provides users with the ability to access experimental data. This service acts as a single interface for time series, data attribute, frame data access and other experiment related information.
slides icon Slides WED3O02 [2.940 MB]  
WEPGF043 Metadatastore: A Primary Data Store for NSLS-2 Beamlines 1
  • A. Arkilic, D.B. Allan, T.A. Caswell, L.R. Dalesio, W.K. Lewis
    BNL, Upton, Long Island, New York, USA
  Funding: Department of Energy, Brookhaven National Lab
The beamlines at NSLS-II are among the highest instrumented, and controlled of any worldwide. Each beamline can produce unstructured data sets in various formats. This data should be made available for data analysis and processing for beamline scientists and users. Various data flow systems are in place in numerous synchrotrons, however these are very domain specific and cannot handle such unstructured data. We have developed a data flow service, metadatastore, that manages experimental data in NSLS-II beamlines. This service enables data analysis and visualization clients to access this service either directly or via databroker api in a consistent and partition tolerant fashion, providing a reliable and easy to use interface to our state-of-the-art beamlines.
WEPGF044 Filestore: A File Management Tool for NSLS-II Beamlines 1
  • A. Arkilic, T.A. Caswell, D. Chabot, L.R. Dalesio, W.K. Lewis
    BNL, Upton, Long Island, New York, USA
  Funding: Brookhaven National Lab, Departmet of Energy
NSLS-II beamlines can generate 72,000 data sets per day resulting in over 2 M data sets in one year. The large amount of data files generated by our beamlines poses a massive file management challenge. In response to this challenge, we have developed filestore, as means to provide users with an interface to stored data. By leveraging features of Python and MongoDB, filestore can store information regarding the location of a file, access and open the file, retrieve a given piece of data in that file, and provide users with a token, a unique identifier allowing them to retrieve each piece of data. Filestore does not interfere with the file source or the storage method and supports any file format, making data within files available for NSLS-II data analysis environment.
poster icon Poster WEPGF044 [0.849 MB]