12VAC5-481-2015: Calibration measurements of brachytherapy sources

A. Before the first medical use of a brachytherapy source, licensees shall have:

1. Determined the source output or activity using a dosimetry system that meets the requirements of 12VAC5-481-2044;

2. Determined source positioning accuracy with applicators; and

3. Used published protocols currently accepted by nationally recognized bodies to meet the requirements of subdivision 1 and 2 of this subsection.

B. Instead of a licensee making its own measurements as required in subsection A of this section, the licensee may use measurements provided by the source manufacturer or by a calibration laboratory accredited by the American Association of Physicists in Medicine that are made in accordance with subsection A of this section.

C. A licensee shall mathematically correct the outputs or activities determined in subsection A of this section for physical decay at intervals consistent with 1.0% physical decay.