1.   He said the weapon is more a psychological than a lethal weapon, since the low-level radiation would not kill many people.

2.   Isotopes can be attached to proteins and other compounds that guide them to cancerous targets where the radiation kills specific cells.

3.   Radiation can kill the immune system, leaving victims vulnerable to potentially fatal infections.

4.   The radiation kills the cells in the vessel wall that are forming the scar tissue, he said.

5.   The way the negatively charged DNA breaks up shows that radiation is killing the tumor.

6.   They knew the total body radiation would kill him in three to six weeks.

7.   Too much radiation can kill healthy tissue by damaging blood flow.

8.   While radiation kills cancerous cells, it also destroys saliva-producing acinar cells in the area receiving treatment.

9.   Dr Nahrul explains that radiation kills bacteria - thus it can be used to control food-borne disease-causing micro-organisms present in foodstuff.

10.   This bone marrow was injected into the tail vein of mice whose natural bone marrow had been killed by radiation.