However, in the present embodiment the shifting operation of the feeder unit 5 is controlled by {TAIL ~ the controller} 8 in a manner such that the velocity of {HEAD ~ the feeder unit} 5 in direction B, that is, the feed rate of the single crystal ingot 6 is varied in accordance with a predetermined program stored in the controller 8 
However , in the present embodiment the shifting operation of the feeder unit 5 is controlled by { TAIL ~ the controller } 8 in a manner such that the velocity of { HEAD ~ the feeder unit } 5 in direction B , that is , the feed rate of the single crystal ingot 6 is varied in accordance with a predetermined program stored in the controller 8
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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