105 IONIZATION RATE (MR/HR) £08 REMOVED POLYETHYLENE SAG 102 Station Location YAG4QO ENDOFSIO-P BOOM Detector Type & Number NYO-M LIMIT OF CALIBRATION 4 6 8 10 2 14 16 \8 20 TiME SINCE DETONATION (HR) Figure B.12 Surface-monitoring-device record, YAG 40, Shot Navajo. 22 24 26 28