Analyzing Design Considerations for Disassembly of Spent Nuclear Fuel during Head-End Process of Pyroprocessing

Table 2

Comparison of vision and positioning methods for rod extraction.

Method	Vision method	Positioning method
Advantages	Comprehensive functions to extract various types of assembly	A simple structure for extraction
	If abnormal rods are observed, location recognition can be easily compared against other methods	Low failure ratio
		No need for shielding structure
		Small space is required
	Precise control	Easy to design for multiple rod extraction when compared to vision
	Sensors are vulnerable	Difficult to set initial origin position of assembly
	Radiation shield structures require more of each element	New information must be saved according to assembly type
Disadvantages	Device failure ratio is high	Abnormal rods are not easy to handle
	A big space is required
	Difficult to design for multiple rod extraction