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CXI has two in-vacuum 2.3M CSPAD pixel-array detectors. Each detector is stationed downstream of one of CXI's three interaction points and can be read-out individually, together, or independently independent data streams – allowing CXI the capability to operate two experiments simultaneously using a single X-Ray beam. When running two experiments during the same shift, the upstream experiment uses the DS1 CSPAD in the primary DAQ from cxi-daq, while the downstream parasitic experiment will use the DS2 CSPAD in the secondary DAQ from cxi-monitor. The names DS1 and DS2 refer to the vacuum chambers that contain the CSPAD detectors.
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