Part 4731.4180 - RADIATION SURVEYSSubpart 1.Survey requirements.A licensee must:
A. conduct radiation surveys with a calibrated and operable radiation survey instrument that meets the requirements under part 4731.4060;B. using a survey instrument meeting the requirements of item A, conduct a survey of the radiographic exposure device and the guide tube after each exposure when approaching the device or the guide tube. The survey must determine that the sealed source has returned to its shielded position before exchanging films, repositioning the exposure head, or dismantling equipment;C. conduct a survey of the radiographic exposure device with a calibrated radiation survey instrument any time the source is exchanged and whenever a radiographic exposure device is placed in a storage area to ensure that the sealed source is in its shielded position; andD. maintain records according to subpart 2.Subp. 2.Record keeping.A licensee must maintain a record of each exposure device survey conducted before the device is placed in storage under subpart 1, item C, if that survey is the last one performed in the workday. Each record must be maintained for three years after it is made.
Minn. R. agency 144, ch. 4731, INDUSTRIAL RADIOGRAPHY, pt. 4731.4180
Statutory Authority: MS s 144.1202; 144.1203