IRRSP Source Management and Security

Question 1

How often must sealed sources used in industrial radiography be leak tested under 10 CFR 34?

Accepted Answer

Every 6 months

Answer

10 CFR 34.27 requires that sealed sources be leak tested at intervals not to exceed 6 months.

Question 2

What level of removable contamination indicates that a sealed source is leaking under NRC regulations?

Accepted Answer

185 Bq (0.005 µCi)

Answer

10 CFR 34.27 defines a leaking source as one with removable contamination exceeding 185 Bq (0.005 µCi).

Question 3

Within what timeframe must a licensee notify the NRC of a lost or stolen sealed source by telephone?

Accepted Answer

Within 4 hours

Answer

10 CFR 34.91 requires immediate telephone notification to the NRC within 4 hours of discovering a missing, lost, or stolen source.

Question 4

What document must a licensee maintain to ensure accountability of each sealed source in its possession?

Accepted Answer

Source inventory record

Answer

10 CFR 34.31 requires licensees to maintain an inventory record for each sealed source to ensure continuous accountability.

Question 5

Which of the following is required when a source change is performed on an industrial radiography exposure device?

Accepted Answer

The source change must be documented and the new source inventoried

Answer

Source changes must be fully documented and the new source added to inventory records to maintain accountability as required under 10 CFR 34.

IRRSP - Industrial Radiography Radiation Safety Personnel Practice Test