1.   Energy Department officials said they traced the problem to the outside pipe after technicians found elevated radiation in part of the reactor building.

2.   Other tests found radiation in a well.

3.   But instead of finding man-made radiation, the Vela series detected the natural gamma ray bursts that seemed to come from everywhere in the heavens.

4.   Previous expeditions found little radiation.

5.   Bernabei said the food had been in a closed carryout box and that no other radiation was found inside the refrigerator.