Survey, Cleanup and Rehabilitation Evaluation
PRK
It is recommended in this context that:
1.
A limit of 50 percent of the ICRP dose limits for individuals
be used.
This assumes that the range of annual exposure levels
tor persons
recaiving the higher exposures will be known.
The
—
following values apply:
-
—
je
Gonads, red bone marrow
0.25 rem/yr
Hand, and forearms; feet
3.75 rem/yr
Skin, bone, thyroid
1.50 rem/yr (0.75
rem/yr, childrens
thyroid)
and ankles
Other single organs
2.
a,
0.75 rem/yr
A limit for gonadal exposure of the population be 5 rems in 30
years.
This is based on the genetic dose coming primarily from
137cesium, the radiological half-life of which is 30 years.
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