The Optimization of Radiation Protection in the Design of the High Temperature Reactor-Pebble-Bed Module

Table 2

Level of radioactive pollution control (Bq/cm²).

Surface type	radioactive material		radioactive material
	Extremely toxic	Others
Workbench, equipment, wall, and floor
Controlled area	4	40	40
Supervised area	0.4	4	4
Work clothes, gloves, and work shoes
Controlled area	0.4	0.4	4
Supervised area
Hand, skin, underwear, and work socks	0.04	0.04	0.4