A particularly dramatic example of the mineral novacekite was recently sold at an auction. An overseas collector submitted the winning bid of $82,000. Novacekite incorporates natirral irraniiim as a major element of its composition. The object was evaluated primarily to aid in design of an appropriate container for chipment to the buyer. This collectible item was found to contain approximately 40 μCi (1.48 MBq) of natirral uranium and its progeny. After removal of the particulate component by a single sheet of 1.6 mm lead, the attenuation in lead of the remaining gamma spectrum was characteristic of 226Ra. A license was not required for this qirantity of “soiirce materiall” In addition to making recommendations regarding packagitig and shipping, suggestions were also made to the seller regarding hic safe handling of the object prior to its shipment.
©2001Health Physics Society