Section 1280. Permanent radiographic installations

A. Each entrance that is used for personnel access to the high radiation area in a permanent radiographic installation must have either:

1. An entrance control of the type described in 12VAC5-481-780 that causes the radiation level upon entry into the area to be reduced; or

2. Both conspicuous visible and audible warning signals to warn of the presence of radiation. The visible signal must be actuated by radiation whenever the source is exposed or the machine is energized. The audible signal must be actuated when an attempt is made to enter the installation while the source is exposed or the machine is energized.

B. The alarm system must be tested for proper operation with a radiation source each day before the installation is used for radiographic operations. The test must include a check of both the visible and audible signals. Entrance control devices that reduce the radiation level upon entry as designated in subdivision A 1 of this section must be tested monthly. If an entrance control device or an alarm is operating improperly, it must be immediately labeled as defective and repaired within seven calendar days. The facility may continue to be used during this seven-day period, provided the licensee or registrant implements the continuous surveillance requirements of 12VAC5-481-1370 and uses an alarming ratemeter. Test records for entrance controls and audible and visual alarms must be maintained in accordance with 12VAC5-481-1460.

Historical Notes

Derived from Volume 22, Issue 25, eff. September 20, 2006.

Statutory Authority

§ 32.1-229 of the Code of Virginia.