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. Author manuscript; available in PMC: 2016 Jun 15.
Published in final edited form as: Radiat Res. 2015 May 26;183(6):632–642. doi: 10.1667/RR14006.1

TABLE 4.

Number of Workers Flagged for Neutrons

Country Total number of workers No neutrons Flag 1 Neutrons
Flag 2 Flag 3
France 59,003 50,417 6,018 2,568
UK 147,866 130,642 12,435 4,789
U.S. 101,428 87,464 9,179 4,785
Total 308,297 268,523 27,632 12,142

Notes. Workers were grouped into three categories. Flag 1: Workers with no monitoring or zero doses. Flag 2: Workers with recorded cumulative neutron doses not exceeding 10% of the total equivalent dose for external radiation. Flag 3: Workers with recorded cumulative neutron doses exceeding 10% of the total equivalent dose for external radiation.