Tritium Neutron Generator Target Source

Section 351.550  Tritium Neutron Generator Target Source a)         Use of a tritium neutron generator target source, containing quantities not exceeding 1,110 GBq (30 Ci) in a well with a surface casing to protect fresh water aquifers, is subject to the requirements of this Part except Sections 351.150, 351.410, and 351.770. b)         Either use of a tritium neutron generator target source containing quantities exceeding 1,110 GBq (30 Ci) or in a well without a surface casing to protect fresh water aquifers is subject to the requirements of this Part, except Section 351.410.