Keyword: fibre-optics
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THPHA084 Synchrotron Master Frequency Reconstruction for Sub-Nanosecond Time-Resolved XMCD-PEEM Experiments ion, timing, experiment, hardware 1577
 
  • B. Molas, L. Aballe, M. Foerster, A. Fontsere Recuenco, O. Matilla, J. Moldes
    ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
 
  The tim­ing and syn­chro­niza­tion sys­tem at the ALBA syn­chro­tron fa­cil­ity is based on the well-es­tab­lished event-based model broadly used in the par­ti­cle ac­cel­er­a­tor fa­cil­i­ties built in the last decade. In pre­vi­ous sys­tems, based on sig­nal model ar­chi­tec­ture, the mas­ter fre­quency was dis­trib­uted using a di­rect ana­log sig­nal and de­layed at each tar­get where the trig­gers were re­quired. How­ever, such strat­egy has proven to be ex­tremely ex­pen­sive and non-scal­able. In the event-based model, the data stream is gen­er­ated at a con­tin­u­ous rate, syn­chro­nously with the mas­ter clock os­cil­la­tor of the ac­cel­er­a­tor. This strat­egy im­proves the flex­i­bil­ity for tun­ing the trig­ger pa­ra­me­ters re­motely and re­duces the costs re­lated to main­te­nance tasks. On the other hand, the ab­sence of the pure RF sig­nal dis­trib­uted in the ex­per­i­men­tal sta­tions im­plies much more com­plex­ity in the per­for­mance of time-re­solved ex­per­i­ments. Ab­stract here ex­plain how these dif­fi­cul­ties have been over­come in the ALBA tim­ing sys­tem in order to allow the sig­nal re­con­struc­tion of the RF mas­ter fre­quency at the CIRCE beam­line.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA084  
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