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--- sweeper_usb_daq_data_format [2017/06/11 14:26]
pereira
+++ sweeper_usb_daq_data_format [2017/06/11 17:26] (current)
pereira [The Sweeper USB DAQ data format]
@@ Line 1: / Line 1: @@
 ====== The Sweeper USB DAQ data format ======
-Two crates are read by the Sweeper DAQ software, one CAMAC and one VME. Data from each of these controllers are pushed into [[http://docs.nscl.msu.edu/daq/newsite/nscldaq-11.2/c43.html|ring buffers ]] (**rawccusb** for CCUSB and **rawvmusb** for VMUSB). The Sweeper Event Builder (EVB) reads  data from these ring-buffers, correlates them on the basis of their time stamps, and outputs the resulting data stream on the ring buffer **sweeper**. According to the NSCLDAQ 11.x [[http://docs.nscl.msu.edu/daq/newsite/nscldaq-11.2/x4509.html|protocol]], data in the ring buffer **sweeper** will be organized in ring items, each consisting of two fragments, one for each controller.
+Two crates are read by the Sweeper DAQ software, one CAMAC and one VME. Data from each of these controllers are pushed into [[http://docs.nscl.msu.edu/daq/newsite/nscldaq-11.2/c43.html|ring buffers ]] (**rawccusb** for CCUSB and **rawvmusb** for VMUSB). The Sweeper Event Builder (EVB) reads  data from these ring-buffers, correlates them on the basis of their time stamps, and outputs the resulting data stream on the ring buffer **sweeper**. According to the NSCLDAQ 11.x [[http://docs.nscl.msu.edu/daq/newsite/nscldaq-11.2/x4509.html|format]], data in the ring buffer **sweeper** will be organized in ring items, each consisting of two fragments, one for each controller.
 The structure of the data from the Sweeper EVB is schematically illustrated in the figure below:

Sweeper Magnet

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