South Carolina Code of Regulations
Chapter 61 - DEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL
Subchapter 61-63 - Radioactive Materials (Title A)
Part XI - LICENSING AND RADIATION SAFETY REQUIREMENTS FOR IRRADIATORS
Section 61-63.XI.RHA 11.9 - Shielding

Universal Citation: SC Code Regs 61-63.XI.RHA 11.9

Current through Register Vol. 48, No. 9, September 27, 2024

11.9.1 The radiation dose rate in areas that are normally occupied during operation of a panoramic irradiator may not exceed 2 millirems (0.00002 sievert) per hour at any location 30 centimeters or more from the wall of the room when the sources are exposed. The dose rate must be averaged over an area not to exceed 100 square centimeters having no linear dimension greater than 20 cm. Areas where the radiation dose rate exceeds 2 millirems (0.00002 sievert) per hour must be locked, roped off, or posted.

11.9.2 The radiation dose at 30 centimeters over the edge of the pool of a pool irradiator may not exceed 2 millirems (0.00002 sievert) per hour when the sources are in the fully shielded position.

11.9.3 The radiation dose rate at 1 meter from the shield of a dry-source-storage panoramic irradiator when the source is shielded may not exceed 2 millirems (0.00002) per hour and at 5 centimeters from the shield must not exceed 20 millirems (0.0002 sievert) per hour.

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