{TAIL ~ The recording/playback device} is coupled to a scan controller, which controls {HEAD ~ the scanning operation} of a CT apparatus, and a host controller, which sends commands to the recording/playback device and scan controller and receives control data from the scan controller 
{ TAIL ~ The recording / playback device } is coupled to a scan controller , which controls { HEAD ~ the scanning operation } of a CT apparatus , and a host controller , which sends commands to the recording / playback device and scan controller and receives control data from the scan controller
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH