Calculation Package: Derivation of Facility-Specific Derived Air Concentration (DAC) Values in Support of Spallation Neutron Source Operations

McLaughlin, David A.

Oak Ridge National Laboratory

关键词: Dac;    Radiation Protection;    Air;    Derived Air Concentration;    Radioisotopes;   

DOI  :  10.2172/1042754
RP-ID  :  ORNL/TM-2009/288
RP-ID  :  DE-AC05-00OR22725
RP-ID  :  1042754

美国|英语

来源: UNT Digital Library

【 摘 要 】

Derived air concentration (DAC) values for 175 radionuclides* produced at the Oak Ridge National Laboratory (ORNL) Spallation Neutron Source (SNS), but not listed in Appendix A of 10 CFR 835 (01/01/2009 version), are presented. The proposed DAC values, ranging between 1 E-07 {micro}Ci/mL and 2 E-03 {micro}Ci/mL, were calculated in accordance with the recommendations of the International Commission on Radiological Protection (ICRP), and are intended to support an exemption request seeking regulatory relief from the 10 CFR 835, Appendix A, requirement to apply restrictive DACs of 2E-13 {micro}Ci/mL and 4E-11 {micro}Ci/mL and for non-listed alpha and non-alpha-emitting radionuclides, respectively.