The amount of radio-
that will produce
active atoms of cesium
radiation equal to the
radiation standard
One-half of the
radiation standard
YEAR
Time when people left Bikini Atoll
Time when people were measured for
cesium
‘
cesium
Time when people were measured for
— —| — |—
Time when people were measured for
cesium
cesium
Time when people were measured for
cesium
Time when people were measured for