0.8 mm ) % ( SUPPLY VOLTAGE: 1500 V T ANODE CURRENT: 1 µA U T MAGNETIC U 50 No.2 FLUX PMT O E O No.1 L MAGNETIC SHIELD CASE N A No. 0 L = 0 mm No. 1 L = 10 mm No.0 No. 2 L = 20 mm No. 3 L = 30 mm No. 4 L = 40 mm 0 2.5 5 Magnetic characteristics of photomultiplier tube used with magnetic shield case (PB
