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OCR: Fasten threads holding aluminum leaves Top of can below Stoo-thread Table paen to find dose rates Top of pencil for ruier rest noles 5/8 top (R/hr.) waut readinas -inch pencit taped securely One Diff Time interval of an exposure read 5 Emin 4min. 16min thr 31 inos R/hr R/hr R/hr. R/hr R/hr. 2mm .03 4mm 06 5/8 5/g Holes for stop threads omm amm 10 Center iomm 13 line 12mm 37 14mm Bottom of can above lip 818 atuminum pacn ruler hrfrom readings tomm tine 14mml Bottorm