21.   They used two spectrometers to analyze gamma radiation given off by the blanket.

22.   To ascertain the amount of water in the snow, water officials sometimes employ gamma radiation.

23.   While microwaves send water molecules racing, thereby heating the food, irradiation uses gamma radiation to kill microorganisms without heat.

24.   While microwaves send water molecules racing, thereby heating the food, gamma radiation disrupts bonds and kills microorganisms without heat.

25.   In addition, several patients getting gamma radiation developed dangerous blood clots.

26.   No rise in gamma radiation or in short-lived radionuclides was reported, he said.

27.   The process involves passing foodstuff through a field of gamma radiation in a controlled manner.

28.   Thus, food irradiated with gamma radiation does not become radioactive.

29.   Blix said the North Koreans had refused to let inspectors on to the site to assess how far work had progressed and take measurements of gamma radiation.